MONTANA STATE This "cover" page added by the Internet Archive for formatting purposes g , MONTANA STATE LIBRARY 584.34 } 1 99""" r 3 0864 0010 3921 6 1 CONSERVATION STATUS OF CAREX PARRYANA SSP. IDAHOA IN MONTANA Prepared by: Peter Lesica Montana Natural Heritage Program State Library 1515 East Sixth Avenue Helena, Montana 59620-1800 Prepared for: U.S. Bureau of Land Management Montana State Office P.O. Box 36800 Billings, Montana 59107-6800 January 1998 STATE DCCUiilENTS CGLLrCTiGN U ■!. r - : ■- ■- :■-.:- .. Mu ^■: ^^^^ S .•' .'■'■'■ i ■ - , B L.., :-...' ■' - ' MONTANA STATE LIBRARV .... ;. ■. . . 1515 E. 6th AVE. - ■ HELENA, MONTANA 59620 TABLE OF CONTENTS SPECIES INFORMATION , 2 CLASSIFICATION 2 PRESENT LEGAL OR FORMAL STATUS 3 DESCRIPTION 4 GEOGRAPHIC DISTRIBUTION 5 HABITAT S POPULATION BIOLOGY 9 ECOLOGY 14 LAND OWNERSHIP ^^ ASSESSMENT AND MANAGEMENT RECOMMENDATIONS 17 THREATS TO KNOWN POPULATIONS 17 MANAGEMENT PRACTICES AND RESPONSES , 18 RECOMMENDATIONS FOR MAINTAINING VIABLE POPULATIONS 19 SUMMARY 21 INFORMATION SOURCES 22 HERBARIUM SPECIMENS 22 FIELD WORK 23: LITERATURE CITED 23 Appendix A, Photographs of Carex parryana ssp. idahoa 25 Appendix B. Photographs of Carex parryana ssp. idahoa habitat 26 Appendix C. Location of Carex parryana ssp. idahoa sites 27 Appendix D. Habitat and Grazing Response of Carex parryana ssp. idahoa in Montana 28 Appendix E. Element occurrence records for Carex parryana ssp. idahoa I. SPECIES INFORMATION A. CLASSIFICATION 1. SCIENTIFIC NAME: Carex parryana Dewey ssp. idahoa (Bailey) Murray 2. SYNONYMS: Carex idahoa Bailey 3. COMMON NAME: Idaho sedge 4. BIBLIOGRAPHIC CITATION: First described as Carex idahoa; Bailey, L. H. 1896. Notes on Carex. XVIII. Botanical Gazette 21: 5. Described as Carex parryana ssp. idahoa; Murray, D. F. 1969. Taxonomy of Carex Sect. Atratae (Cyperaceae) in the Southern Rocky Mountains. Brittonia 21: 55- 76. 5. TYPE SPECIMEN: United States, Idaho, Clark County, Beaver Canyon, P. A. Rydberg 2 3 39 (Holotype US) 6 . FAMILY : Cyperaceae 7. GENUS: Carex is a cosmopolitan genus with 1500- 2000 species worldwide (Hickey and King 1988) and ca. 600 species in North America (Hermann 1970) . 8. SPECIES: According to Murray's (1969) treatment Carex parryana has three subspecies: parryana, hallii and idahoa. All have been considered separate species by other authors (e.g. Hermann 1970) . Subspecies idahoa was first described as Carex idahoa by Bailey (1989) . Subsequently Murray (1969) stated that the boundaries between the three taxa were blurred but they have "geographic importance." He thus treated them as subspecies and formally named Carex parryana ssp. idahoa. Booth (1950), Davis (1952) and Hermann (1970) all recognized Carex idahoa at the species level. However, Cronquist (Hitchcock et al. 1969) did not recognize the taxon at any level and referred to it as "a form with relatively long, narrow, acute pistillate scales." Anton Reznicek (University of Michigan, pers. comm.) prefers to follow Murray's (1969) monographic treatment. In Montana both ssp. parryana and ssp. idahoa often occur together without intermediates. Subspecies parryana seems to be more tolerant of salty conditions than idahoa. In habitats with Puccinellia and Distichlis ssp. parryana occurs alone. B. PRESENT LEGAL OR FORMAL STATUS 1. FEDERAL STATUS a. U. S. Fish and Wildlife Service: 3C; Carex parryana ssp. idahoa is no longer considered a candidate for listing; a taxon proven to be more abundant or widespread than previously believed and/ or not subject to any identifiable threat. b. U. S. Forest Service: Sensitive; the Regional Forester has determined there is a concern for population viability of Carex parryana ssp. idahoa within the state as evidenced by a significant current or predicted downward trend in population or habitat. c. U. S. Bureau of Land Management: Sensitive; Carex parryana ssp. idahoa is documented to occur on public land administered by BLM and proven to be imperiled in at least part of its range. 2. STATE STATUS a. Montana: Carex parryana ssp. idahoa is listed as imperiled globally and in Montana (G4T2-S2) because of rarity and/or because other factors make it very vulnerable to extinction (Heidel 1997) . This state listing does not provide any direct legal protection. Lesica and Shelly (1991) list Carex parryana ssp. idahoa as sensitive, known from a limited number of populations or occurring principally in restricted habitats considered vulnerable to man-caused disturbances. b. Idaho: Carex parryana ssp. idahoa has never been listed or tracked as a rare plant in Idaho (Steele et al. 1981, Moseley and Groves 1990). This is likely due to Cronquist's (Hitchcock et al. 1969) failure to recognize this taxon at any level. C. DESCRIPTION 1. GENERAL NONTECHNICAL DESCRIPTION: Idaho sedge forms small clumps that arise from short rhizomes. The stems are 20-35 cm (8-14 in) high with most leaves crowded near the base. Leaves are flat and 2-4 mm wide. Flowers are clustered in 3 (usually) oblong-cylindrical spikes, 1-3 cm (0.5-1 in) long, with the uppermost larger than the others. Male flowers are absent or scattered among the female flowers (perigynia) on the largest spike. Spikes form a narrow, interrupted head, subtended by small leaf -like bracts, at the top of the stems. The narrowly oval scales subtending each perigynia taper to the tip and are 2-3 times longer than the perigynia. These scales are brown with membranous margins and a distinct pale center. Glabrous, egg-shaped perigynia are yellow-green and ca. 3 mm long with a short beak. There are 3 stigmas and the seed is 3-sided. Photographs of C. parryana ssp. parryana and ssp. idahoa are provided in Appendix A. 2. TECHNICAL DESCRIPTION: loosely cespitose from prolonged, scaly, horizontal rootstocks; culms 2- 3.5 dm high, much exceeding the leaves, somewhat fibrillose and reddish-brown tinged at the base, the dried leaves of the previous year conspicuous; leaves 5-10, clustered near the base, the thin blades flat but with more-or-less revolute margins, 2-4 mm wide, long-attenuate, the ventrally very thin hyaline sheaths concave at the mouth, the ligule about as wide as long; spikes usually 3, often all pistillate, linear oblong to cylindric, erect on short, stiff and scabrous peduncles, approximate, forming a narrow head 3.5- 5 cm long, the terminal spike 2-3 cm long, 6-8 mm wide, the lateral 1-2 cm long, 4-6 mm wide, the numerous perigynia appressed-ascending; bracts sheathless, usually not over 1 cm long and much shorter than the spikes; pistillate scales ovate to ovate lanceolate, long-acute to acuminate, brown with a conspicuous lighter center and very narrow hyaline margins, wider and 2-3 times as long as the perigynia; perigynia obovoid, obtusely trigonous, somewhat flattened on one side, 3 mm long, 1.5 mm wide, glabrous, puncticulate, two- ribbed but otherwise nerveless or essentially so, substipitate, yellowish-green, rounded and abruptly short-beaked at the apex, the beak brownish-red, 0.5 mm long, emarginate or shallowly bidentate; achenes obovoid, 2 X 1.25 mm, trigonous with concave sides, sessile, granular, abruptly apiculate (Hermann 1970) . Always dioecious; culms 1.5-4.0 dm high, stiff, erect, longer than the leaves; spikes 1-4, terminal spike much larger than cylindric lateral spikes; pistillate scales much longer than the perigynia (Murray 1969) . Photographs of C. parryana ssp. parryana and ssp. idahoa are provided in Appendix A. 3. SIMILAR SPECIES AND FIELD CHARACTERS: The large, oblong terminal spike and the long, female scales that are at least twice as long as the perigynia, giving the spikes a ragged appearance, are distinctive and separate this plant from the other varieties of C. parryana. Subspecies parryana has a cylindrical terminal spike, lateral spikes nearly as long as the terminal, and pistillate scales ca. as long as the perigynia. Subspecies hallii has pistillate scales as long or only slightly longer than the perigynia. Carex norvegica (sensu lato) has smaller (6-14 mm long) terminal spikes. Carex buxbaumii has broader lateral spikes (6-10 mm wide) and occurs in organic soils. GEOGRAPHIC DISTRIBUTION 1. RANGE: Carex parryana ssp. idahoa occurs in the high valleys of southwest Montana and adjacent southeast Idaho. It has been collected in Beaverhead, Gallatin, Madison, Powell and Silver Bow counties, Montana and Bannock, Clark and Lemhi counties, Idaho (Lesica and Shelly 1991, Murray 1969) . The locations of known Montana populations are shown on the map in Appendix C. Carex parryana as a whole occurs from British Columbia east to Manitoba, south to Utah, Colorado and Nebraska. Subspecies hallii occurs from Manitoba south to Colorado and Nebraska. Subspecies parryana occurs from British Columbia to Manitoba south to Utah and Colorado (Murray 1969) . 2. RECENTLY VERIFIED SITES a. Idaho: There are four recently verified locations for Carex parryana ssp. idahoa in Idaho: two in Clark County near the type locality and two near the headwaters of Birch Creek in Lemhi County. All four populations appear to be small according to 1997 survey information. Little survey work has been conducted and the distribution of the plant is largely unknown (R. Moseley, Idaho Conservation Data Center, pers. comm.). b. Montana: There are 33 recently verified Carex parryana ssp. Idahoa populations in Montana. During the past ten years extensive field studies have been conducted on public lands in Beaverhead and Silver Bow counties by botanists working for the Montana Natural Heritage Program. These include studies of the Highland Mountains, Tobacco Root Mountains, upper Madison Valley, the Ruby Range, the Tendoy Range and southern Beaverhead County including the Centennial Valley. Lesica conducted field surveys for this species in 1997, visiting public lands in the southern Gravelly Range, the Ruby Range, the southern Pioneer Range, the Highland Range, the Centennial Valley and the Beaverhead Range. Known sites and their relative size are listed below (BLM sites in bold) : Beaverhead Co. Basin Creek small (100-200 stems) Box Spring large (>1,000 stems) Brundage Creek small Cabin Creek large Clover Divide small (ca. 2 00 stems) Coyote Creek small (100-3 00 stems) Harkness Lakes large (200-2,000 stems) Hildreth medium (ca. 600 stems) Kate Creek small Lima Reservoir N probably large Lima Reservoir SW small (ca. 200 stems) Lower Poison Lake small Meadow Creek medium Monida small Morrison Lake small Mud Lake large (>1000 stems) Muddy Creek medium (100-500 stems) Porcupine Canyon large (>10,000 stems) Sand Creek large (>10,000 stems) Simpson Creek large (>10,000 stems) Sourdough Creek small (100-200 stems) Taylor Creek small (ca. 100 stems) Upper Blacktail small Upper Deadman probably medium 6 Wolverine Creek small Madison County Grassy Lake small (<10 stems seen) Silver Bow County Blacktail Creek unknown Coyote Hill small (50-100 stems) Highland City small (ca. 50 stems) Maclean Creek unknown Moose Creek small (100-200 stems) Moosetown S small (ca. 100 stems) S Fork Tucker Ck' small (50-100 stems) Further descriptions of these sites are given in Appendix E. 3. HISTORICAL SITES a. Idaho: There is a collection from Caribou National Forest in Bannock County (Murray 1969) . b. Montana: There are 5 collections from 40 or more years ago. The populations vouchered by these specimens have not been relocated, due mostly to imprecise location data: Beaverhead County Big Hole River (1955) Centennial Valley (1955) Grasshopper Ck Basin (1958) Gallatin County Forks of Madison (1897) Powell County Deer Lodge (ca. 1897) Further descriptions of these sites are given in Appendix E. 4. AREAS SEARCHED UNSUCCESSFULLY: Carex parryana ssp. idahoa was not found in presumed appropriate habitat in the Ruby Range by Lesica in 1997. He also searched the upper Big Hole River Valley unsuccessfully in 1994 and 1997, and Dyce Creek, Bannack, and Upper Ruby River areas in 1997. 5. AREAS YET TO BE SEARCHED: Populations of Carex parryana ssp. idahoa should be sought in the Hebgen Lake area, the French Creek area south of Anaconda, and the upper Big Hole Valley as these are areas where historic collections have been taken. Most survey work for Carex parryana ssp. idahoa has been conducted on public lands. Numerous populations undoubtedly occur on private land, especially in the Centennial Valley and upper Big Sheep Creek Valley. E. HABITAT ASSOCIATED VEGETATION: Carex parryana ssp. Idahoa most often occurs in an ecotonal area at the border of wet meadow vegetation and sagebrush steppe. Thus, plant species from both of these habitats can be found associated with this sedge. Wet meadows are usually dominated by Juncus balticus, Carex nebrascensis, C. aquatilis, Deschampsia cespitosa, and Potentilla fruitcosa. While steppe vegetation is dominated by Artejnlsia tridentata and/or A. tripartita, Festuca idahoensis and Agropyron smithii. Vascular plant species most commonly associated with Carex parryana ssp. idahoa in order of importance are iTuncus balticus, Carex praegracilis, Muhlenbergia richardsonis , Aster occidentalis, Poa pratensis. Taraxacum officinale, Potentilla gracilis and Antennaria microphylla. Graminoid cover is high (60-100%) , while forb cover is usually low to moderate (5-50%) except in overgrazed areas. Bare ground was usually uncommon (mean=8%) as was lichen and bryophyte cover (mean=14%) . Photographs of typical habitat are provided in Appendix B. TOPOGRAPHY: Carex parryana ssp. idahoa appears to be restricted to nearly level sites in the high valleys of southwest Montana. It is most commonly found on terraces associated with headwaters streams at elevations greater than 6,000 ft. Small populations may occur lower or along larger streams . SOILS AND GEOLOGICAL RELATIONSHIPS: The wetland- riparian habitat of Carex parryana ssp. idahoa. most likely has silty soils with ample organic matter and little or no coarse fragments. Most known Montana populations occur in areas of calcareous parent material (e.g. Madison limestone or Beaverhead conglomerate) ; however, the few populations occurring in non-calcareous regions suggest that this is not an obligate relationship. In wetlands where part of the habitat was saline (as indicated by the presence of Distichlis and Puccinellia) Carex parryana ssp. idahoa occurred only in the non-saline areas, although C. parryana 8 ssp. parryana was often found on salt-encrusted soils. Carex parryana ssp. idahoa was always found in subirrigated soils associated with low-gradient streams or springs and seeps. These soils are wet early in the growing season but are only moist later in the summer. 4. REGIONAL CLIMATE: Lima (6,275 ft) along the Red Rock River in southern Beaverhead County is the meteorological recording station most similar to the majority of Carex parryana ssp. idahoa populations. Mean January and July temperatures at Lima were 16.6° and 62.6° F respectively, and mean annual precipitation was 10.7 in (NOAA 1982). Most Carex parryana ssp. idahoa sites are higher and therefore probably colder and wetter. 5. DYNAMIC ABIOTIC FACTORS: Disturbances from flooding are probably uncommon at Carex parryana ssp. idahoa sites because they are generally in headwaters locations where snow accumulation and gradients are low. Although fire was common in high-elevation steppe vegetation in southwest Montana prior to European settlement (Arno and Gruell 1983), it probably did not play an important role in the dynamics of the herbaceous wetland vegetation associated with riparian areas. F. POPULATION BIOLOGY 1. PHENOLOGY: Carex parryana ssp. idahoa generally occurs at 6,000-8,000 ft, and phenology will depend on elevation and annual depth of snow pack. In general this sedge flowers in June through early July with mature fruit from mid-July through August . 2. POPULATION SIZE AND CONDITION a. Idaho: The four recently verified populations in Idaho appeared small. Only one small colony could be located at the Kaufman site in Lemhi County in 1997. The other three sites were heavily grazed in 1997. b. Tendoy-Beaverhead Mtns., Montana: Twelve verified populations occur in the Big Sheep Creek and Medicine Lodge creek drainages. Many populations are large and many large undocumented populations probably occur on private land. The plant is common in the riparian wetlands of the valleys. i. Cabin Creek- heavily grazed in 1997 so accurate population estimates were not possible; ca. 5 acres; based on the size and quality of habitat, this is probably a large population; probably more plants on private land. ii. Coyote Creek- two small subpopulations at high elevation; along stream and around seep, <1 acre; regularly grazed by livestock. iii. Harkness Lakes- at least two medium-size subpopulations occurring along creek and margins of small lakes; 200-2,000 stems observed in 1985; subject to grazing. iv. Hildreth- medium-size population in two subpopulations on ca. 1 acre associated with spring and spring creek; ca 700 stems estimated in 1997; light to moderate livestock grazing. v. Kate Creek- small population in <1 acre along stream; 8 stems observed in 1997; moderate livestock grazing. vi. Lower Poison Lake- small population in <1 acre around spring-fed pond; little or no livestock grazing in 1984. vii. Meadow Creek- at least four subpopulations distributed along small stream; livestock grazing, at least 300- 600 stems observed in 1993, 94, 97; probably a medium or large population based on the amount of habitat; probably more plants on private land. viii Morrison Lake- small population in <1 acre around small pond; 50-100 stems observed in 1990; livestock grazing. ix. Muddy Creek- medium-size population on creek terrace, ca. 1 acre; moderate to light livestock use in 1993. X. Porcupine Canyon- large population in ca. 2 acre; >20,000 stems estimated in 1997; little or no livestock grazing in 1997. xi. Simpson Creek- large population on 4+ acres along small stream; >10,000 stems estimated in 1997; light to moderate livestock grazing; probably more plants on private land. 10 xii. Sourdough Creek- two small subpopulations in <2 acres along creek; 100-200 stems observed in 1994; light to moderate livestock grazing in 1994. c. Centennial Valley, Montana: Nine verified populations occur in the Centennial Valley area. Some populations are large and undocumented populations probably occur on private land. The plant is locally common in the wetlands of this valley. i. Brundage Creek- small population in ,1 acre roadside meadow; heavily grazed in 1997. ii. Clover Divide- small population along stream and seep areas over ca. 20 acres; ca. 200 stems observed in 1997; moderate livestock grazing, iii. Lima Reservoir North- probably a large population over ca. 100 acres of seeps at the base of hills; heavily grazed in 1997. iv. Lima Reservoir Southwest- small population in <1 acre along small stream; ca. 200 stems in 1997; moderate to heavy livestock grazing. V. Monida- small population in ca. 5 acres wet meadow along stream; 100-1000 stems estimated in 1985, <20 stems observed in 1997; not grazed regularly, vi. Mud Lake- large population in ca. 40 acres along stream and around lake; >1,000 stems estimated in 1997; not grazed regularly, vii. Sand Creek- large population over ca. 2 acres of seeps at the base of hills; >10,000 stems estimated in 1997; not grazed in 1997. viii Upper Deadman Creek- probably a medium- size population in ca. 2 acres of wet meadow along stream; moderate to heavy grazing in 1997. ix. Wolverine Creek- small population on <1 acre along creek; ca. 20 stems observed in 1994; moderate livestock grazing in 1994. d. Highland Mountains, Montana: seven small populations are known in the Butte Highlands. Carex parryana ssp. idahoa is local and uncommon in this area. i. Blacktail Creek- probably a small population in ca. 1 acre along stream 11 ii. Coyote Hill- small population along stream; 50-100 stems observed in 1992; livestock grazing. iii. Highland City- small population along stream; 20-30 stems in 1982, ca. 50 stems in 1992; moderate livestock grazing and road disturbance. iv. Maclean Creek- population occurs along stream; no population size estimates. v. Moose Creek- small population in ca. 1 acre meadow along stream; ca. 160 stems observed in 1997; light to moderate grazing in 1997. vi. Moosetown South- small population in <1 acre along stream; ca. 100 stems observed in 1997; light grazing in 1997, some dredging of creek, adjacent road disturbance. vii. South Fork Tucker Creek- small population in ca. 1 acre along stream; 50-100 stems observed in 1992; moderate to heavy livestock grazing in 1992. e. Blacktail Mountains, Montana: Habitat is limited in this area, and most populations are small. Many of the small habitat islands in this area (springs) are on private land and are unsurveyed. i. Basin Creek- small population on ca. 1 acre associated with spring; 100-200 stems observed in 1995; heavily grazed in 1997. ii. Box Spring- 2 subpopulations, 1 large on ca. 1 acre associated with spring creek and seep; 1,000+ stems estimated in 1995; livestock grazing heavy in places. iii. Upper Blacktail Deer Creek- small population on <1 acre along creek; heavily grazed in 1997. f. Pioneer Mtns., Montana: Only one small, recently verified site is known. Other small populations may occur on private land, but many sites searched did not harbor populations. i. Taylor Creek- small population on <1 acre along stream; ca. 100 stems estimated in 1997; moderate livestock grazing. g. Gravelly Range, Montana: Only one small site is known from wetlands on the north end of the Range. i. Grassy Lake- small population; <10 stems seen in small (<1 acre) wetland in 1997; 12 adjacent to a road; moderate livestock grazing. 3. REPRODUCTIVE BIOLOGY a. Type of reproduction: Carex parryana is described as having short, creeping rhizomes (Hitchcock et al 1969) , and C. parryana ssp. idahoa is described as having "prolonged, scaly rootstocks" (Hermann 1970) . These rootstocks or rhizomes are a means of vegetative reproduction. The rhizomatous growth form make recognition of genetic individuals in the field difficult or impossible. Carex parryana ssp. idahoa also produces seed, as a means of sexual reproduction. Murray (1969) states that the plant is dioecious (male and female flowers on separate plants); however, Hermann (1970) states that spikes are "often all pistillate," suggesting that spikes may sometimes have both male and female flowers. Murray (1969) comments that he has not seen any staminate plants although Bailey (1896) describes them. Taken together, these observations indicate that plants with male flowers are rare in Carex parryana ssp. idahoa, thus most seed is probably produced by asexual (agamospermous) means, although sexual reproduction is also possible. b. Pollination biology: Pollination, when it occurs, is presumably by wind (Faegri and van der Pijl 1971, Hickey and King 1988). c. Seed dispersal and biology: Carex plants lack any special adaptations for dispersal. Nonetheless, there is evidence that dispersal may occur by birds, either externally in mud on feathers and feet or in the gut following ingestion. Dispersal may also occur by water in the case where perigynia float (van der Pijl 1982) . Otherwise, short-distance dispersal by gravity and wind may also occur. d. Seedling biology: Nothing is known. 4. DEMOGRAPHY: Most rhizomatous graminoids follow a similar demographic pattern. Genets (genetically unique individuals) are composed of rhizomes 13 (horizontal underground stems) . Ramets (branches forming tufts of leaves at the soil surface) arise from the rhizome. Each ramet persists for 1-3+ years, produces a flower stem and then perishes. Each year, new ramets are produced, some old ramets persist in a vegetative state and some ramets flower and perish. If ramets flower their third year on average, then ca. 33% of all ramets will be in flower on an average year. In 1997 only a small proportion (ca. 10%) of the Carex parryana ssp. idahoa ramets observed had a flowering stem. This distribution of vegetative and fertile ramets suggests that ramets may remain vegetative for 5-10 years before flowering, assuming that 1997 was an average year. Carex parryana ssp. idahoa often occurs in discrete colonies covering ca. 1-5 m^. Such colonies may be a single genet. G. ECOLOGY 1. BIOLOGICAL INTERACTIONS a. Competition and facilitation: Carex idahoa ssp. parryana occurs in dense turf of wetland meadows. At 14 sites canopy cover of graminoids was always high (60-100%) , while canopy cover of forbs varied from low to moderate (5-50%) (Appendix D) . There was no correlation between the average height of the vegetation and the abundance of C. parryana ssp. idahoa at these sites (Appendix D) . These observations suggest that C. parryana ssp. idahoa is a late successional species capable of persisting in a strongly competitive environment. There were strong negative associations between Carex parryana ssp. idahoa and Poa pratensis, Antennaria microphylla and Aster occidentalis (Appendix D) . These correlations may indicate competitive interactions, or they may be a response to differential grazing histories among the sites (see below) or both. The two forbs that increased as C. parryana ssp. idahoa decreased are smaller in stature and not likely to cause competitive exclusion of the rhizomatous sedge without herbivore pressure. Poa pratensis is an aggressive, exotic, 14 rhizomatous species that might be able to outcompete Carex spp. in a meadow turf environment . b. Herbivory: I observed no evidence of insect herbivory on Carex parryana ssp. idahoa during field surveys in 1997, and saw no evidence of insect damage on ca. 15 herbarium specimens housed at the University of Montana (MONTU) . Cattle grazing occurs at nearly all of the known sites for Carex parryana ssp. idahoa in Montana and Idaho. In 1997 grazing intensity varied from ungrazed to ca. 100% utilization at the sites surveyed. Experimentation is the only robust way to determine the effects of livestock grazing on this sedge, and these studies have not been done. In 1997 Lesica estimated canopy cover of dominant plant species and abundance of flowering stems of Carex parryana ssp. idahoa at fourteen sites in Montana (Appendix D) . Graminoid cover was high at all sites. There was a strong positive relationship between C. parryana ssp. idahoa and graminoid cover and strong negative relationship between the sedge and a number of species that are thought to increase with livestock grazing, Poa pratensis, Antennaria microphylla and Aster occidentalis . These observations suggest that Carex parryana ssp. idahoa behaves like a typical palatable graminoid, persist with moderate ungulate grazing pressure, decreasing as grazing becomes strong enough to cause an increase in forbs and Poa pratensis. Indeed Hermann (1970) reports that C. parryana ssp. idahoa provides excellent forage for cattle and horses but is too rare to be of more than local importance. c. Other biotic interactions: Much of the habitat that could support populations of Carex parryana ssp. idahoa on private land is mowed for hay. The effects of annual mowing on this plant are not known. 2. HYBRIDIZATION: Subspecies parryana and ssp. idahoa occur together at ca. six of the sites surveyed in 1997. Subspecies parryana was often in slightly drier and often more saline habitats 15 than ssp. parryana. The two subspecies differ in a number of characters: ssp. parryana has narrower spikes with little differentiation in size between the terminal and lateral and much smaller pistillate scales compared to ssp. idahoa. Intermediates between the two subspecies were never observed in sites where both occurred. Subspecies hallii occurs further east than ssp. idahoa. It has spikes like ssp. idahoa but scales like ssp. parryana and may be a of hybrid origin. H. LAND OWNERSHIP 1. BUREAU OF LAND MANAGEMENT: Twenty-four of the recently verified populations of Carex parryana ssp. idahoa occur on lands administered by BLM. These include Basin Creek, Box Spring, Brundage Creek, Cabin Creek, Clover Divide, Coyote Creek, Grassy Lake, Hildreth, Lima Reservoir N, Lima Reservoir SW, Meadow Creek, Mud Lake, Muddy Creek, Porcupine Canyon, Sand Creek, Simpson Creek, Sourdough Creek, Taylor Creek, Upper Blacktail, Upper Deadman, Wolverine Creek, Maclean Creek, Moose Creek, Moosetown S. Some of these are large, and many are contiguous with private land. Additional populations may occur on BLM land in the Centennial Valley and the headwaters of Big Sheep Creek. 2. U.S. FOREST SERVICE: Therie are four recently verified sites for Carex parryana ssp. idahoa on land administered by USES: Harkness Lakes, Morrison Lake, Coyote Hill and Highland City. Additional populations probably occur on USES lands in the Beaverhead Range and perhaps in the southern Gravelly Range. 3. STATE OF MONTANA: The Lower Poison Lake and South Fork of Tucker Creek sites are on state land. 4. PRIVATE: The Kate Creek, Monida and Blacktail Creek sites are on private land. All of these are small populations. Carex parryana ssp. idahoa often occurs in habitats amenable to hay production or adjacent to permanent water sources. These habitats, because of their economic value, are often on private property. Many large population likely occur on private land in the headwaters of Big Sheep Creek and the Centennial Valley. Small populations associated with springs and small streams on private land are likely to be found in the Blacktail Mountains. 16 II. ASSESSMENT AND MANAGEMENT RECOMMENDATIONS ^ A. THREATS TO KNOWN POPULATIONS 1. LIVESTOCK GRAZING: Graminoid plants such as sedges are adapted to grazing and are usually able to persist with light to moderate grazing pressure (Dyer et al. 1993, McNaughton 1979). Evidence suggests that Carex parryana ssp. idahoa responds to grazing like a typical palatable graminoid (see I.G.l.b. and Appendix D.), capable of persisting under light to moderate grazing, but declining with chronic heavy grazing. It should be remembered that this assessment is based on correlational data and studies of other, anatomically similar species. Experiments and monitoring studies to determine the actual response of C. parryana ssp. idahoa to grazing have not been conducted. Nonetheless, it is reasonable to assume that C. parryana ssp. idahoa will decline with heavy grazing. Almost all known populations of Carex parryana ssp. idahoa on public lands are subject to livestock grazing. Much of the habitat for C. parryana ssp. idahoa on private land is also ^ subject to cattle grazing. The mesic habitat W supporting populations of this sedge provides high quality, green forage for livestock throughout the summer and is a magnet for cattle which often overgraze. Many small populations of C. parryana ssp. idahoa occur in islands of mesic habitat (springs, seeps or small streams) in semi-arid steppe. Vegetation of these areas often receive ca. 100% utilization annually. Populations occupying larger areas of habitat may not face such severe grazing pressure. However, it is likely that some populations are declining due to livestock grazing. Severe livestock grazing can result in streambank destabilization followed by lowering of the water table and a reduction in the extent of hydrophytic vegetation (Platts and Nelson 1989) . Overgrazing could reduce the extent of Carex parryana ssp. idahoa habitat associated with riparian areas. 2. MOWING FOR HAY: Large areas of likely Carex parryana ssp. idahoa habitat on private land in southern Beaverhead county are mowed for hay. These sites have not been surveyed, so only ^ conjecture is possible at this time. Many of 17 these hay meadows have been sown to exotic species with or without concomitant plowing. In other areas native vegetation is cut. Some sites are probably irrigated. Plowing and seeding almost certainly has adverse effects on native species including C. parryana ssp. idahoa, and may even result in local extirpation. It is not known how annual mowing or irrigation affects C. parryana ssp. idahoa. Some species of Carex persist with annual mowing and irrigation in the Big Hole Valley of Beaverhead County. Further study is needed to determine whether conservation of this rare sedge and haying are compatible. 3. MINING: A portion of Moose Creek associated with the Moosetown South Carex parryana ssp. idahoa population has been dredged, presumably for mineral extraction. Dredging likely reduced the extent and altered the nature of riparian vegetation and possibly reduced the amount of habitat available to C. parryana ssp. idahoa. Most populations of C. parryana ssp. idahoa do not occur in areas prone to mining activity. 4. ROADS: Roads are often constructed along or adjacent to riparian areas. Road construction has impacted wetland habitat at three known Carex parryana ssp. idahoa sites: Brundage Creek, Highwood City and Moosetown South. A fourth site (Blacktail Creek) is threatened by road improvement construction. Road development can impact populations of C. parryana ssp. idahoa by reducing the amount of habitat available and by degrading the remaining habitat through increased runoff, pollution, and disturbance from maintenance. 5. EXOTIC PLANTS: Poa pratensis was the only exotic plant occurring with significant frequency in Carex parryana ssp. idahoa habitat. It is a rhizomatous grass similar in stature to C. parryana ssp. idahoa and may compete with it, especially in the presence of grazing and trampling by livestock. Taraxacum officinale and Tri folium repens occur at some sites, but these small-stature species will increase only in situations where heavy grazing is removing the canopy of larger graminoids. By themselves they do not pose a threat to C. parryana ssp. idahoa. B. MANAGEMENT PRACTICES AND RESPONSES 18 1. CATTLE GRAZING: It is reasonable to assume that light to moderate livestock grazing is compatible with the conservation of Carex parryana ssp. idahoa, but that the species will decline with heavy grazing (see above) . The habitat of this plant is favored by cattle, and overgrazing of its mesic wetland habitat on public and private land is common. Populations of C. parryana ssp. idahoa are probably subjected to many different grazing regimes throughout its range. It is not known how the plant responds to these different treatments. It is reasonable to assume that grazing regimes permitting 50% or less utilization annually and allowing seed production and dispersal at regular intervals will be most likely to be compatible with the persistence of C. parryana ssp. idahoa. 2. MOWING FOR HAY: Conversion of Carex parryana ssp. idahoa habitat for hay production occurs only on private land in Montana. Plowing and seeding undoubtedly has adverse effects on the viability of C. parryana ssp. idahoa populations. The effects of mowing on native vegetation are unknown . 3. ROADS: Road construction has occurred in Carex parryana ssp. idahoa populations, probably resulting in a loss of habitat. Use of these roads by ranchers and recreationists probably has little impact on C. parryana ssp. idahoa populations; however, maintenance or widening may result in additional habitat loss. C. RECOMMENDATIONS FOR MAINTAINING VIABLE POPULATIONS 1. MANAGEMENT RECOMMENDATIONS: It is unlikely that private landowners will be willing to alter management practices in order to conserve populations of Carex parryana ssp. idahoa. Consequently, conservation of this rare sedge will depend on public lands. The only significant threat to C. parryana ssp. idahoa on public lands is overgrazing. The 1997 guidelines for livestock grazing management on BLM's Butte District call for maintaining and improving riparian vegetative cover (Guideline #1) and stocking rates and duration of use should be implemented to ensure that riparian areas are in proper functioning condition (Guideline #4) , including "high vigor" for riparian plants (Standard #2). Management of 19 wetlands supporting Carex parryana ssp. idahoa should adhere to the published standards and guidelines. Livestock grazing on these mesic sites should be light to moderate; full utilization of graminoid vegetation by livestock should be avoided. The 1997 guidelines for livestock grazing management for the Butte District call for monitoring of wetland and riparian area conditions. Monitoring the abundance of Carex parryana ssp. idahoa in those pastures in which it occurs as a common component of the vegetation could prove advantageous. The needed information on grazing response for this rare plant can be obtained in this way, and the response of C. parryana ssp. idahoa should mirror the meadow vegetation as a whole since it is considered a highly palatable species with a growth form similar to the sod-forming community dominants. 2. RESEARCH NEEDS: Surveys for populations of Carex parryana ssp. idahoa populations on private land should be made to determine their size and extent. The effects of livestock grazing and haying on populations of C. parryana ssp. idahoa should be determined. The optimum grazing regimes for conservation of C. parryana ssp. idahoa should be determined. 3. STATUS RECOMMENDATIONS a. U.S. Fish and Wildlife Service: Carex parryana ssp. idahoa is known only from a small area of southwest Montana and southeast Idaho. The plant is common in the headwaters of Big Sheep Creek, locally common in the Centennial Valley and rare elsewhere in Montana. Carex parryana ssp. idahoa is known from 32 sites in Montana, and many others probably occur on private land. It occurs in drier ecotonal zones around subirrigated wet meadows associated with springs and low gradient streams in high-elevation valleys, a habitat that is uncommon throughout most of the plant's range. Carex parryana ssp. idahoa is palatable and subject to livestock grazing throughout its range; its habitat is usually preferred by cattle. Much of the habitat on private land is mowed for hay. It is reasonable to assume that Carex parryana 20 ssp. idahoa is compatible with light to moderate livestock grazing. In summary, Carex parry ana ssp. idahoa has a small geographic range and occurs in a narrowly defined habitat that is threatened by livestock overgrazing throughout this range. However, C. parryana ssp. idahoa is common in the center of its range and is likely compatible with moderate livestock grazing. Thus, Carex parryana ssp. idahoa should not be considered for listing as a threatened or endangered species at this time and should remain as 3C until it can be shown to be declining or that significant portions of its habitat are being overgrazed. A final recommendation awaits findings in the Idaho portion of its range. b. U.S. Bureau of Land Management: Carex parryana ssp. idahoa occurs on public land administered by BLM. It has a narrow geographic range and occurs in a habitat that is sensitive to current land management practices (livestock grazing) . There is evidence that heavy grazing is detrimental to the plant, and some BLM sites (e.g. , Basin Creek) experience intense grazing pressure. Carex parryana ssp. idahoa should remain on the BLM sensitive list until it can be shown that all or most populations are experiencing only light to moderate livestock grazing and that monitored populations are stable. c. U.S. Forest Service: Carex parryana ssp. idahoa occurs on land administered by the U.S. Forest Service. It has a narrow geographic range and occurs in a habitat that is sensitive to current land management practices (livestock grazing) , and there is evidence that heavy grazing is detrimental to the plant. Carex parryana ssp. idahoa should continue to have sensitive status. d. State of Montana: There are 32 recently verified sites for Carex parryana ssp. idahoa in Montana, and it is likely that many more occur on private land. However, many populations are small, and the habitat is threatened throughout its range. Thus the status of S2 is still warranted. 21 4. MONITORING: The density of vegetative and fertile ramets of Carex parryana ssp. idahoa should be monitored using permanent plots on sites with different grazing regimes to help determine the plant's response to grazing and the optimum management strategy for its conservation. D. SUMMARY: Carex parryana ssp. idahoa occurs in the high semi-arid valleys of southwest Montana and adjacent southeast Idaho. There are 32 recently verified populations in Montana, and others probably occur on unsurveyed private land. In Idaho where surveys have not been conducted, there are only four recently verified populations. Most known Montana populations of Carex parryana ssp. idahoa occur on land administered by BLM; however, this is partly an artifact of survey intensity. Some additional populations probably occur on U.S. Forest Service land and many are likely to occur on private land. Carex parryana ssp. parryana also occurs in southwest Montana and is found at some of the same sites as ssp. idahoa, but the two subspecies are distinct, and intermediate plants have not been observed. The majority of Carex parryana ssp. idahoa populations are small and occupy diminutive habitat islands. The plant occurs in moist meadows, often ecotonal between sagebrush steppe and wet meadows dominated by sedges and rushes. This mesic habitat is preferred by cattle for grazing. Observations suggest that Carex parryana ssp. idahoa responds to grazing like other palatable graminoids- light to moderate grazing has minimal negative impact, while heavy grazing causes decline. Overgrazing was observed at a minority of C. parryana ssp. idahoa sites. It is also likely that populations on private land have been negatively impacted by agricultural development (hay production) and may continue to be impacted by haying. Carex parryana ssp. idahoa is common to locally common in the center of its range in extreme southwest Montana. Although it is probably sensitive to heavy grazing pressure, there is no evidence that majority of populations are experiencing chronic overgrazing. The number, size and conservation status of C. parryana ssp. idahoa in Idaho is nearly unknown. Carex parryana ssp. idahoa is currently listed as 3C by USFWS. This designation appears appropriate at this time pending new information from the Idaho portion of the plant's range. Carex parryana ssp. idahoa is probably impacted negatively by heavy grazing, and nearly all populations on public land are subject to livestock grazing. Thus, 22 this rare sedge should continue to be considered sensitive by the BLM and USPS in Montana. Retention of sensitive status by federal agencies will help ensure that Carex parryana ssp. idahoa does not require listing under the Federal Endangered Species Act in the future . III. INFORMATION SOURCES A. HERBARIUM SPECIMENS: Specimens vouchering recently verified as well as historical populations are deposited at the herbaria of the University of Montana (MONTU, ca. 15) and Montana State University (MONT, ca . 4) . B. FIELD WORK: Lesica conducted general florist ic field surveys in southwest Montana in 1985 (Big Sheep Creek) , 1992 (Highland Mtns. ) , 1993 (Tendoy Mtns . ) , 1994 (southern Beaverhead Co.), 1995 (Blacktail Mountains). In 1997 he surveyed for Carex parryana ssp. idahoa in Madison, Beaverhead and Silver Bow counties. Field forms and photographs are deposited with the Montana Natural Heritage Program in Helena. C. LITERATURE CITED Arno, S. F. and G. E. Gruel 1 . 1983. Fire history at the forest - grassland ecotone in southwestern Montana. Journal of Range Management 36: 332-336. Bailey, L. H. 1896. 1896. Notes on Carex. XVIII. Botanical Gazette 21: 5. Booth, W. E. 1950. Flora of Montana Part 1, conifers and monocots. Montana State College Research Foundation, Bozeman. Davis, R. J. 1952. Flora of Idaho. Brigham Young University Press, Provo, UT. Dyer, M. I., C. L. Turner and T. R. Seastedt . 1993. Herbivory and its consequences. Ecological Applications 3: 10-16. Faegri, K. and L. van der Pijl. 1971. The principles of pollination biology. Pergamon Press, Oxford. Hansen, P. L., R. D. Pfister, K. Boggs, B. J. Cook, J. Joy, and D. K. Hinkley. 1995. Classification and management of Montana's riparian and wetland sites. University of Montana School of Forestry Miscellaneous Publication No. 54, Missoula. Heidel, B. 1977. Montana plant species of special concern. Montana Natural Heritage Program, Helena. 23 Hermann, F. J. 1970. Manual of car ices of the Rocky Mountains and Colorado Basin. USDA Forest Service Agriculture Handbook 374, Washington D.C. Hickey, M. and C. King. 1988. 100 families of flowering plants. Cambridge University Press, New York. Hitchcock, C. L. , A. Cronquist, M. Owenby and J. W. Thompson. 1969. Vascular plants of the Pacific Northwest, Part 1: vascular crptograms, gymnosperms and monocotyledon^ . University of Washington Press, Seattle. Lesica, P. and S. J. Shelly. 1991. Sensitive, threatened and endangered vascular plants of Montana. Montana Natural Heritage Program Occasional Publication No. 1. Helena, Montana. McNaughton, S. J. 1979. Grazing as an optimization process: grass-ungulate relationships in the Serengeti. American Naturalist 113: 691-703. Moseley, R. and C. Graves. 1990. Rare, threatened and endangered plants and animals of Idaho. Idaho Department of Fish and Game, Boise. Murray, D. F. 1969. Taxonomy of Carex Sect. Atratae (Cyperaceae) in the Southern Rocky Mountains. Brittonia 21: 55- 76. National Oceanic and Atmospheric Association. 1982. Monthly normals of temperature, precipitation and heating and cooling degree days. Montana, 1951-1980. National Climate Center, Ashville, North Carolina. Platts, W. S. and R. L. Nelson. 1989. Characteristics of riparian plant communities and streambanks with respect to grazing in northeastern Utah. Pages 73-82 in R. E. Gresswell, B. A. Barton and J. L. Kershner (eds.). Practical approaches to riparian resource management. U.S. Bureau of Land Management, Billings, MT. Ross, R. L. and H. E. Hunter. 1976. Climax vegetation of Montana based on soils and climate. USDA Soil Conservation Service, Bozeman, MT. Steele, R. , S. J. Brunsfeld, D. M. Henderson, K. E. Holte, F. D. Johnson, and P. L. Packard. 1981. Vascular plants of concern in Idaho. University of Idaho Forest, Wildlife and Range Experiment Station Bulletin 34, Moscow. van der Pijl, L. 1982. Principles of dispersal in higher plants. Springer-Verlag, Berlin. 24 Appendix A. Photographs of Carex parryana ssp, parryana (upper left) and ssp. idahoa (all others) . 25 Appendix B. Photographs of Carex parryana ssp. idahoa habitat at Taylor Creek (upper left) , Porcupine Canyon (upper right) , Hildreth (lower left) and Lima Reservoir (lower right) . ■m ■ ^^M W^^i^^ r^ V ^^HP f^r Hi' H^^^^ ■■rt'.U. v ■-'f * , .Ati*'-^l': ^^^^a 26 Appendix C. Location of Carex parryana ssp idahoa sites Montana Natural Heritage Program, February 2, 1998 Appendix D. Habitat and Grazing Response of Carex parryana ssp. idahoa in Montana Peter Lesica 929 Locust Missoula, Montana 59802 November 1997 Introduction Carex parryana ssp. idahoa is a sedge found in moist subirrigated meadows of southwest Montana and adjacent Idaho. The plant is considered rare due to its limited habitat and geographic range (Hermann 1970, Lesica and Shelly 1991) . The habitat of Carex parryana ssp. idahoa is used for either hay production or livestock grazing; however, neither the effect of grazing nor haying on the sedge is known. The purpose of this study is to describe the vegetation associated with " Carex parryana ssp. idahoa and use this data to help determine the effects of grazing on this rare species. Methods Carex parryana ssp. idahoa is known to occur in Beaverhead, ^Ae^^ison, Silver Bow, Powell and Gallatin counties, Montana and Clark, Lemhi and Bannock counties, Idaho (Lesica and Shelly 1991, Murray 1969) . It is a rhizomatous sedge occurring along the drier margins of subirrigated meadows associated with gentle stream terraces as well as springs and seeps, in Montana usually at 6,000-8,500 ft. Hermann (1970) reported that Carex parryana ssp. idahoa has excellent forage value. I located more than 20 populations and subpopulations of Carex parryana ssp. idahoa in Beaverhead County, Montana in early August, 1997. Fourteen of these sites showed little or no indication of grazing and were chosen for my study. At each site I estimated canopy cover of all common vascular plant species, total graminoid species and total forb species to the nearest 5% in a 0.01 ha circular plot subjectively chosen to represent the site where Carex parryana ssp. idahoa occurred. I counted the number of flowering stems of Carex parryana ssp. idahoa in a 100 m^ (50 X 2m) belt transect through the center of each population. Number of stems is not the same as number of individuals but was used here as a relative measure of abundance. 28 Results Meadow communities supporting populations of Carex parryana ssp. idahoa were dominated by the graminoids, Carex praegracilis , Juncus balticus and Muhlenbergia richardsonis (Table 1) . Common forbs included Antennaria microphylla, Aster occidentalis , Potentilla gracilis and Taraxacum officinale. Shrubs {Potentilla fr^ticosa) were common at only two sites (Table 1) . Density of Carex parryana ssp. idahoa flowering stems was strongly positively correlated with total graminoid cover and negatively correlated with total forb cover (Table 2) . Muhlenbergia richardsonis was positively correlated with density of Carex parryana ssp. idahoa. Species most strongly negatively correlated with Carex parryana ssp. idahoa stems were of Poa pratensis, Antennaria microphylla and Aster occidentalis (Table 2). Density of Carex parryana ssp. idahoa flowering stems varied from 4 to 310 stems/ 100 m^ with a mean of 67 stems/ 100 m^. Total forb cover varied from 5 to 75% with a mean of 42%, and total graminoid cover varied from 60 to 100% with a mean of 86%. Log- transformation of the dependent variable increased the negative relationship with forb cover (r=0.68, P=0.007) and the positive relationship with graminoid cover (r=0.38, P=0.182). Discussion Flowering by rhizomatous species may be affected by the degree of stress experienced by the clone. Some species flower sparsely when in a dense sward. This does not appear to be the case with Carex parryana ssp. idahoa as there was a positive relationship between canopy cover of graminoid plants and the density of C. parryana stems. All of the study sites appeared to have been subjected to livestock grazing in the recent past and were most likely subjected to livestock or bison grazing in the more distant past. Nonetheless, Carex parryana ssp. idahoa has persisted at these sites and was abundant at some of them, suggesting that it can tolerate at least light to moderate grazing. Although Carex parryana ssp. idahoa has persisted at many sites subjected to grazing, results of the study suggest that it does decrease under grazing pressure strong enough to cause significant increases in unpalatable forb cover. Cattle preferentially graze graminoids rather than most forbs, so that among similar habitats those with higher forb cover have usually experienced stronger grazing pressure (Ross and Hunter 1976, Hansen et al. 1995) . Poa pratensis also increases with livestock grazing (Hansen et al 1995) . Across the 14 study sites there was a negative correlation between the canopy cover of forbs and Poa 29 pratensis and the abundance of Carex parryana ssp. idahoa (Table 1) . Four of the five sites where Carex parryana ssp. idahoa was most abundant had forb cover less than 20%, although mean forb cover for all 14 sites was 42%. These results indicate that grazing is likely having a negative impact on the sedge. Taken together my observations suggest that Carex parryana ssp. idahoa responds to grazing like many palatable graminoids. It can persist with ungulate grazing pressure, but as grazing becomes strong enough to cause an increase in forbs and Poa pratensis, there will be a decrease in this rare sedge. Literature Cited Hansen, P. L. , R. D. Pfister, K. Boggs, B. J. Cook, J. Joy, and D. K. Hinkley. 1995. Classification and management of Montana's riparian and wetland sites. University of Montana School of Forestry Miscellaneous Publication No. 54, Missoula. Hermann, F. J. 1970. Manual of car ices of the Rocky Mountains and Colorado Basin. USDA Forest Service Agriculture Handbook 374, Washington D.C. Lesica, P. and S. J. Shelly. 1991. Sensitive, threatened and endangered vascular plants of Montana. Montana Natural Heritage Program Occasional Publication No. 1. Helena, Montana. Murray, D. F. 1969. Taxonomy of Carex Sect. Atratae (Cyperaceae) in the Southern Rocky Mountains. Brittonia 21: 55- 76. Ross, R. L. and H. E. Hunter. 1976. Climax vegetation of Montana based on soils and climate. USDA Soil Conservation Service, Bozeman, MT. 30 ^(0 o m Ui o — 0 X M " a 0) 0) $ o H 1 1 1 1 O O "H 1 o o 1 imi 1 1 iini loo ■P 0 (U 1 1 1 1 (N CM 1 "** II 1 1 1 1 1 1 rH rH Id iJ ^ ■^ti H 1 H 1 1 1 in o 1 o o o iiniiiiililinin OS w 1 1 1 1 t-t rH 1 n ro rH 1 1 1 1 1 1 1 1 1 H *- u o o 1 fH o in in iH If) 1 1 O rH irHOi 1 1 1 1 liniin ■p o 1 fH rH 1 1 ro 1 rH 1 1 1 1 1 1 rH 1 U 0) o m ■iS 5 1 1 1 1 1 1 1 1 1 rH 1 1 1 1 loininoi 1 loi 1 irHoi ll^rH rHIIIrHIII (Ml 4J -~ Q 1 in 1 m 1 1 o in 1 o 1 1 1 1 1 iiniinoioi Q O 1 1 rH 1 1 tH 1 VO 1 1 1 1 1 1 1 rH 1 CM 1 Id 0 u J5 0) Id > T3 0 O 1 O 1 1 1 O O 1 1 O 1 1 1 1 1 1 1 rH 1 1 1 1 -H ^ 01 1 n 1 1 1 n in 1 1 rH 1 1 1 1 1 1 1 1 1 1 1 in • a ^ (D -^ 0) U ^ 1 O 1 1 1 in o 1 1 o o 1 1 1 imirHini 1 iin CO 1 CM 1 1 1 ^ 1 1 CM CM 1 1 1 1 1 III Id ^ c Id ^! • >it) „M^ h o o; 1 1 1 1 1 1 o O 1 O in iinini 1 1 iini loin l4 "O CM h3 1 1 1 1 1 1 in rH 1 CO 1 rO 1 1 1 1 1 1 CM rH Id C ^aa' a Id w (1) * C O O O 1 1 1 1 1 O 1 1 o in ilinoillillini n ^ c X <-• 1 1 111^ 1 1 ro c» 1 1 (N rn 1 1 1 1 1 1 1 o^ Id o c •H (U 0) c fN 1 1 iH o in 1 o in lOiniini IHI iini ^ -H s II ^ CM 1 ro 1 CM 1 rH 1 1 11 1 ID Id o. Q) J 3 •H o O "O u 0) 3 o iH 1 1 rH o 1 loooiini 1 1 1 1 1 loin (is: P. m s 1 1 CM 1 1 ^ CM CMlrOlllllllrHCM OJ •a c -^ c 0 Pi Id i ""^ o 1 O 1 1 1 1 O 1 oinoiiliiilim ^ sn in 1 1 <-! 1 in 1 1 O 1 inrHllllrHIIIIO Id o H 1 1 1 1 1 rH 1 VO 1 1 1 1 1 1 1 1 ^ u a Ql-H c > J o 0 (D o ■^ a Id g m n >iT3 •H •H 3 Ot-'i CO c •H 0 C g 0 (d rH c o w 3 Id Id Id m rH 0 Id X ^^ i-H 0 m V4 T5 rH m , 3 id-H idmnrH o Id m Id m JJ rH Id £(001 ci-iaco-Hid +J -^ "4 O •W TJ -'H -rl MH JS 0«-r< rH Id D>-H -rl O rH C C (N ■H >i Id m-rl rH 0,-rl O 0 .-1 Id Id -H Q) 0) n -H -rl .^ 0) S .!< Six: ta JH C -rl m u n -rl Mid^.pc.pca)-puu u o +J O "4 0) 0) Id u 0) 3 3 V4 0+JOild-'4Ctt)tD3ld-rl U " •H Id <-! +j o c Id o Id o ID -rl C tt) C Oi-H -H C V4 l< i o> Id +J -rl (D T3 O -rl (D 3 0 0 Id V4 V4 V4 0) -ri(nrHO>cid-H(nc>30ididid >i C C 3 0 0 & U J3 Vi Id a •'H Id ui Q)-rl033 0<(DrHrHrHB • £ o •rl 0) Id VJ 04HX»Q)-PUOrHV4ldO|(nrHrHrH3 .H +J O tH ti Id g c aa g Id J3 (0 Id 0 Id -rl Id -H -H --4 -rl o 0) >i >> id £ oj c bC oinv^Oig-P-P-pid (1) V4 ^ OaCUX X»rH ffi 0) so<<«;rtrt:ofoa:Mcua.a.H CO Table 2. Percent canopy cover (minimum, maximum, mean) of dominant vascular plant species, average vegetation height, and correlation (Pearson's r) with density of Carex parryana ssp. idahoa at 14 ungrazed site. Carex praegracilis Juncus balticus Muhlenbergia richardsonis Poa pratensis Total graminoids Antennaria microphylla Aster occidentalis Potentilla gracilis Taraxacum officinale Total forbs Height of vegetation 6-12 in 8.7 in 0.09 min-max Mean r 0-50 24 +0.14 10-60 31 -0.14 0-40 11 +0.36 0-65 9 -0.30 60-100 86 +0.30 0-20 3 -0.30 0-35 10 -0.29 0-20 7 -0.18 0-40 8 -0.05 5-75 42 -0.45 32 Appendix E. Element occurrence records for Carex parryana ssp. idahoa in Montana. 33 Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 State rank: S2 Forest Service status: Federal Status: SENSITIVE Element occurrence code: PMCYP036E0 . 001 Element occurrence type: Survey site name: HIGHLAND CITY EO rank: EO rank comments: County: SILVER BOW. USGS quadrangle: MOUNT HUMBUG Township: OOIN Range : 008W Section: 35 TRS comments: SW4 Precision: Survey date: First observation: Last observation: Elevation: 68 60 - 1981-07-22 Slope/aspect: 5% / WEST 1992-07-11 Size (acres) : 1 Location: FROM BUTTE, TAKE STATE HWY 2 TOWARD PIPESTONE PASS; CA. 1.5 MILES BEFORE PASS, GO SOUTHWEST ON FS RD 84 (HIGHLAND ROAD) 10.25 MILES TO 0.1 MILE EAST OF TURNOFF TO MOOSE TOWN. SITE IS BETWEEN ROAD AND CREEK. Element occurrence data: 1992: CA. 50 INDIVIDUALS, WITH IMMATURE FRUIT PRESENT. PLANTS, GROWING RIGHT ALONG THE ROAD. 1981: 20-30 General site description: 1992: OPEN EXPOSURE ON STRAIGHT SLOPE; MOIST BOTTOM IN NARROW VALLEY FLOODPLAIN. SILTY SOIL OF ALLUVIAL OR CALCAREOUS PARENT MATERIAL. ASSOCIATED DOMINANT SPECIES: POTENTILLA FRUTICOSA, DESCHAMPSIA CESPITOSA, JUNCUS BALTICUS. ADDITIONAL ASSOCIATED PLANT SPECIES: POA PRATENSIS, CAREX PETASATA, FRAGARIA VIRGINIANA, POTENTILLA GRACILIS. 1981: CALCAREOUS WET-MOIST MEADOW SURROUNDED BY WILLOWS AND BOG BIRCH; WITH CAREX SCOPULORUM, PEDICULARIS GROENLANDICA, THALICTRUM SPARSIFLORUM, POTENTILLA FRUTICOSA, Land owner/manager: BEAVERHEAD- DEERLODGE NATIONAL FORESTS, BUTTE RANGER DISTRICT Comments: ECODATA PLOT #92PL114. EVIDENCE OF LIVESTOCK DISTURBANCE. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LACKSCHEWITZ, K. (9728). 1981. MONTU. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 002 Element occurrence type: Survey site name: MONIDA EO rank: A EO rank comments: AREA RELATIVELY UNDISTURBED, GOOD POPULATION. County: BEAVERHEAD USGS quadrangle: MONIDA Township: Range: Section: TRS comments: 015S 006W 03 NE4 014S 006W 34 SE4 Precision: S Survey date: 1985-07-19 Elevation: 6770 - First observation: 1985 Slope/aspect: Last observation: 1986-06-27 Size (acres) : 40 Location: 0.1-0.4 AIR MI. NW. OF MONIDA, N. OF OLD HIGHWAY ACROSS RR TRACKS. Element occurrence data: 101-1000 INDIVIDUALS (RHIZOMATOUS) ; PLANTS FRUITING; MEADOW IS FAIRLY UNDISTURBED AND NOT HEAVILY GRAZED; AREA IS SELDOM VISITED. General site description: WET ALKALINE MEADOW, ON VERY GENTLE SLOPE; MEADOW DOMINATED BY GRAMINOIDS, WITH PHLOX KELSEYI, JUNCUS BALTICUS, CAREX SPP., IN DENSE TURF. Land owner/manager: PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) Comments : AREA REMOTE & NOT VERY CLOSE TO HIGHWAY; SEE EF FOR SPECIAL PLANT SURVEY FORM. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (3551). 1985. MONTU. tStbmmmi Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE . State rank: S2 Federal Status: Element occurrence code: PMCYP036E0 . 003 Element occurrence type: Survey site name: LOWER POISON LAKE EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: DEER CANYON Township: Range: Section: TRS comments: Oils OllW 26 SW4 Precision: S Survey date: 1984-08-26 Elevation: 8200 - First observation: 1984 Slope/aspect: Last observation: 1984-08-26 Size (acres): 0 Location: TENDOY MOUNTAINS, WEST END OF LOWER POISON LAKE, CA. 10 MILES SOUTH OF CLARK CANYON RESERVOIR. Element occurrence data: COMMON . General site description: FEN, WITH CAREX AQUATILIS AND C. SIMULATA. Land owner /manager: STATE LAND - UNDESIGNATED Comments: Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (3288). 1984. SPECIMEN #89087. MONTU. MONTANA-BEAVERHEAD CO. 7.5 MINUTE SERIES (TOPOGRAPHIC) ft^ Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 005 Element occurrence type: Survey site name: MORRISON LAKE WETLANDS EO rank: B EG rank comments: PROBABLY A FAIRLY LARGE POPULATION. County: BEAVERHEAD USGS quadrangle: MORRISON LAKE Township: Range: Section: TRS comments: 014S 012W 23 NE4SW4 Precision: S Survey date: 1990-07-30 Elevation: 8200 - First observation: 1990 Slope/aspect: 0-3% / LEVEL Last observation: 1990-07-30 Size (acres) : 1 Location: TAKE DELL EXIT OFF 1-15 SOUTH OF DILLON. PROCEED SOUTH ON FRONTAGE ROAD TO BIG SHEEP CREEK ROAD (#257), AND FOLLOW THIS ROAD CA. 30 MILES TO MORRISON LAKE ROAD. PROCEED TO HEAD OF INDIAN CREEK; WETLANDS ARE SOUTHEAST OF LAKE. Element occurrence data: 51-100 PLANTS IN FRUIT; MAY BE MORE COMMON THAN SURVEY INDICATED. General site description: POTENTILLA FRUTICOSA/JUNCUS BALTICUS COMMUNITY. ASSOCIATED SPECIES: ASTER OCCIDENTALIS, THALICTRUM ALPINUM, MUHLENBERGIA RICHARDSONIS, SENECIO FOETIDUS, CAREX SCIRPOIDEA, C. PRAEGRACILIS . Land owner/manager: BEAVERHEAD- DEERLODGE NATIONAL FORESTS, DILLON RANGER DISTRICT Comments : ROADS AND GRAZING IN AREA. COMPLETE PLANT SPECIES LIST AND MANAGEMENT RECOMMENDATIONS CONTAINED IN A REPORT BY P. LESICA TO THE BEAVERHEAD NATIONAL FOREST (1990), ON FILE AT MTNHP. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (4979). 1990. MONTU. C Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 006 Element occurrence type: Survey site name: HARKNESS LAKES EO rank: B EO rank comments: LIVESTOCK GRAZING; LOTS OF DANDELIONS AND INCREASERS. County: BEAVERHEAD USGS quadrangle: EIGHTEENMILE PEAK Township: Range: Section: TRS comments: 016S OllW 05 NW4SE4 Precision: S Survey date: 1990-07-31 Elevation: 8150 - 8200 First observation: 1985 07-20 Slope/aspect: 0-3% - LEVEL Last observation: 1990-07-31 Size (acres) : 40 Location: BEAVERHEAD RANGE, CA. 24 MILES SOUTHWEST OF LIMA, ALONG COTTONWOOD CREEK. Element occurrence data: 101-1000 PLANTS, IN IMMATURE FRUIT 31 July 1990. General site description: BELOW POA NEVADENSIS MEADOW, AT NARROW, MOIST, PEATY JUNCUS BALTICUS ECOTONES ALONG THE MARGINS OF SMALL LAKES. ASSOCIATED SPECIES: TRIFOLIUM LONGIPES, ASTER OCCIDENTALIS, CAREX PRAEGRACILIS . Land owner/manager: BEAVERHEAD- DEERLODGE NATIONAL FORESTS, DILLON RANGER DISTRICT Comments: COMPLETE PLANT SPECIES LIST AND MANAGEMENT RECOMMENDATIONS CONTAINED IN A REPORT BY P. LESICA TO THE BEAVERHEAD NATIONAL FOREST (1990), ON FILE AT MTNHP. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (3556). 1985. MONTU. LESICA, P. (5208). 1990. MONTU. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: • IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE . State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 007 Element occurrence type: Survey site name: COYOTE HILL EO rank: EO rank comments : County: SILVER BOW USGS quadrangle: PIPESTONE PASS Township: Range: Section: TRS comments: OOIN 007W 27 SE4SW4 Precision: S Survey date: Elevation: 6960 First observation: 1992-06-29 Slope/aspect: 2% / SOUTHWEST Last observation: 1992-06-29 Size (acres) : 1 Location: HIGHLAND MOUNTAINS, SOUTH OF BUTTE. FROM FISH CREEK ROAD (FS RD 668), GO NORTH ON LIME KILN MOUNTAIN ROAD (FS RD 8492) CA. 100 YARDS. SITE IS ALONG SMALL SPRING CREEK. Element occurrence data: 50-100 RAMETS, IMMATURE FRUIT PRESENT. General site description: OPEN EXPOSURE ON STRAIGHT SLOPE; MOIST AREA IN BOTTOM ON ALLUVIAL FLOODPLAIN. SILTY SOIL OF ALLUVIAL OR CALCAREOUS PARENT MATERIAL. ASSOCIATED DOMINANT SPECIES: POTENTILLA FRUTICOSA, JUNCUS BALTICUS, DESCHAMPSIA CESPITOSA. ADDITIONAL ASSOCIATED SPECIES: POA PRATENSIS, TARAXACUM OFFICINALE, TRI FOLIUM LONGIPES. Land owner/manager: BEAVERHEAD- DEERLODGE NATIONAL FORESTS, JEFFERSON RANGER DISTRICT Comments: ECODATA PLOT #92PL109. EVIDENCE OF LIVESTOCK GRAZING. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (5746). 1992. MONTU. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 008 Element occurrence type: Survey site name: SOUTH FORK TUCKER CREEK EO rank: EO rank comments: County: SILVER BOW USGS quadrangle: TUCKER CREEK Township: Range: Section: TRS comments: OOIN 009W 36 NE4 Precision: S Survey date: Elevation: 6180 First observation: 1992-06-27 Slope/aspect: Last observation: 1992-06-27 Size (acres) : 1 Location: FROM DIVIDE (TOWN), GO NORTH ON FRONTAGE ROAD CA. 5 MILES. GO EAST UNDER 1-15 CA. 1.5 MILES TO RANCH. TAKE ROAD TO RESERVOIR CA. 1 MILE. INSTEAD OF CONTINUING UPHILL, GO DOWN TO CREEK. SITE IS CA. 0.4 MILE UPSTREAM. Element occurrence data: 50-100 INDIVIDUALS; IMMATURE FRUIT PRESENT. General site description: OPEN EXPOSURE ON STRAIGHT SLOPE; MOIST AREA IN BOTTOM ON FLOODPLAIN TERRACE. SILTY SOIL OF ALLUVIAL PARENT MATERIAL. ECOTONE BETWEEN CAREX NEBRASCENSIS WET MEADOW AND ARTEMISIA TRIDENTATA-FESTUCA IDAHOENSIS STEPPE, WITH POA PRATENSIS AND JUNCUS BALTICUS. Land owner/manager: STATE LAND - UNDESIGNATED Comments: LIVESTOCK DISTURBANCE EVIDENT. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (5730). 1992. SPECIMEN #71771. MONTU. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 State rank: S2 Forest Service status: Federal Status: SENSITIVE Element occurrence code Element occurrence type: Survey site name: MEADOW CREEK EO rank: C EO rank comments : PMCYP036E0.009 WESTERN SUBPOPULATION IS SMALL AND HEAVILY-GRAZED; EASTERN SUBPOPULATION IS RELATIVELY LARGE WITH SOME GRAZING; NORTHERN SUBPOPULATION IS SMALL AND GRAZED. County: BEAVERHEAD USGS quadrangle: CABOOSE CANYON Township: Range: Section: TRS comments: 015S OlOW 08 NW4; 9 W2 Precision: Survey date: First observation: Last observation: 1994-08-16 Elevation: 6840 - 6880 1993-07-10 Slope/aspect: 0-3% / NORTH 1994-08-16 Size (acres) : 12 Location: FROM DELL, TAKE BIG SHEEP CREEK ROAD TO MEADOW CREEK ROAD, THEN TAKE MEADOW CREEK ROAD 1 MILE WEST {WESTERN SUBPOPULATION) . EASTERN SUBPOPULATION IS LOCATED NEAR CROSSING OF DEADMAN ROAD AND NICHOLIA CREEK. Element occurrence data: SUBPOPULATIONS . WESTERN: 50 PLANTS, IMMATURE FRUIT. EASTERN: 200-500 PLANTS, IMMATURE FRUIT. NORTHERN: 20-50 PLANTS, MATURE FRUIT (1994). General site description: OPEN, MOIST FLOODPLAIN BOTTOM, CALCAREOUS PARENT MATERIAL, SILTY SOIL. ASSOCIATED SPECIES: JUNCUS BALTICUS, CAREX PRAEGRACILIS, DESCHAMPSIA CESPITOSA, ASTER OCCIDENTALIS, POTENTILLA GRACILIS, CREPIS RUNCINATA, MUHLENBERGIA RICHARDSONII, ASTRAGALUS LEPTALEUS. Land owner/manager: PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments : ECODATA PLOT# 94SC105. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (6088). 1993. MONTU. maBmHimm Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 State rank: S2 Forest Service status: Federal Status: SENSITIVE Element occurrence code: PMCYP036E0. 010 Element occurrence type: Survey site name: MUDDY CREEK EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: DIXON MOUNTAIN Township: Range: Section: TRS comments; 013S OlOW 07 NW4 Precision: Survey date : First observation: Last observation: 1993-07-09 1993-07-09 Elevation: 6960 - Slope/aspect: LEVEL Size (acres) : 1 Location: FROM DELL, TAKE BIG SHEEP CREEK ROAD TO MUDDY CREEK, AND CONTINUE ON MUDDY CREEK ROAD TO WILSON CREEK ROAD. CONTINUE CA. 3 MILES ON WILSON CREEK ROAD. Element occurrence data: 100-500 PLANTS, IMMATURE FRUIT. General site description: MOIST, OPEN FLOODPLAIN BOTTOM. SHALE PARENT MATERIAL, SILTY SOIL. ASSOCIATED SPECIES: JUNCUS BALTICUS, DESCHAMPSIA CESPITOSA, CAREX PRAEGRACILIS, CREPIS RUNCINATA, VALERIANA EDULE, POTENTILLA ANSERINA. Land owner/manager: PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: SOME DISTURBANCE FROM CATTLE. Information source; LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens : H2''52'30" 44'45' GEOLOGICAL SURVEY I 35200001 £ 353 4956ooo«..N. yiAi^diLMMgiib^ Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: 32 Federal Status: Element occurrence code: PMCYP036E0 . Oil Element occurrence type: Survey site name: SOURDOUGH CREEK EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: GRAPHITE MOUNTAIN Township: Range: Section: TRS comments: 012S OlOW 31 SW4SW4 Precision: S . Survey date: Elevation: 7160 First observation: 1993-07-09 Slope/aspect: LEVEL Last observation: 1993-07-09 Size (acres) : 1 Location: FROM DELL, TAKE BIG SHEEP CREEK ROAD TO MUDDY CREEK AND GO NORTH TO WILSON CREEK ROAD. CONTINUE ON MAIN ROAD 0.5 MILE. Element occurrence data: CA. 100 PLANTS, IN YOUNG FRUIT. General site description: MOIST, OPEN FLOODPLAIN BOTTOM, SHALE PARENT MATERIAL, SILTY SOIL. ASSOCIATED SPECIES: POTENTILLA FRUTICOSA, JUNCUS BALTICUS, DESCHAMPSIA CESPITOSA, ANTENNARIA MICROPHYLLA, AGROPYRON CANINUM, CREPIS RUNG I NAT A. Land owner/manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: SOME CATTLE DISTURBANCE. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (6066). 1993. MONTU. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE , State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 012 Element occurrence type: Survey site name: MUD LAKE EO rank: C EO rank comments: SMALL POPULATION WITH GOOD HEAVY GRAMINOID COVER. County: BEAVERHEAD USGS quadrangle: CORRAL CREEK Township: Range: Section: TRS comments: 014S 005W 23 NE4NW4 Precision: S Survey date: 1994-08-18 Elevation: 6625. - First observation: 1994-08-18 Slope/aspect: LEVEL Last observation: 1994-08-18 Size (acres) : 65 Location: CENTENNIAL VALLEY; SHORE OF MUD LAKE, NEAR SOUTHEAST INLET. Element occurrence data: CA. 20 PLANTS OBSERVED WITH MATURE FRUIT. General site description: MOIST, OPEN WIDE VALLEY TERRACE BOTTOM. ALLUVIAL PARENT MATERIAL, SILTY SOIL. ASSOCIATED SPECIES: CAREX PRAEGRACILIS, MUHLENBERGIA RICHARDSONIS, JUNCUS BALTICUS, HAPLOPAPPUS UNIFLORUS. Land owner/manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: OBSERVED BY P. LESICA AND S. COOPER. LIGHT CATTLE GRAZING. SITE NOT FULLY SURVEYED. ECODATA PLOT* 94SC116. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (6530). 1994. MONTU. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: S2 Federal Status: Element occurrence code: PMCYP036E0 . 013 Element occurrence type : Survey site name: WOLVERINE CREEK EO rank: C EO rank comments: APPARENTLY SMALL POPULATION WITH HEAVY GRAZING. County: BEAVERHEAD USGS quadrangle: WOLVERINE CREEK Township: Range: Section: TRS comments: 014S 005W 1 NW4NE4 Precision: S Survey date: 1994-08-18 Elevation: 6610 - First observation: 1994-08-18 Slope/aspect: LEVEL Last observation: 1994-08-18 Size (acres) : 1 Location: CENTENNIAL VALLEY; ON EAST SIDE OF WOLVERINE CREEK CA. 0.6 MILE FROM CONFLUENCE WITH RED ROCK RIVER. Element occurrence data: CA. 10-20 PLANTS OBSERVED, IN FRUIT. General site description: MOIST, OPEN WIDE VALLEY TERRACE BOTTOM. ALLUVIAL PARENT MATERIAL, SILTY SOIL. ASSOCIATED SPECIES: POA JUNCIFOLIA, MUHLENBERGIA RICHARDSONIS, JUNCUS BALTICUS, HAPLOPAPPUS UNIFLORUS. Land owner/manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: OBSERVED BY P. LESICA AND S. COOPER. MODERATE CATTLE GRAZING. AREA NOT THOROUGHLY SURVEYED. ECODATA PLOT# 94SC123. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens : Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 State rank: S2 Forest Service status; Federal Status: SENSITIVE Element occurrence code: PMCYP036E0 . 015 Element occurrence type: Survey site name: MACLEAN CREEK EO rank: EO rank comments: County: SILVER BOW USGS quadrangle: MELROSE Township: Range: Section: TRS comments; OOIS 009W 24 Precision: M Survey date: First observation: 1979-06-11 Last observation: 1979-06-11 Elevation: 6100 - Slope/aspect: Size (acres) : Location: CA. 0.5 MILES SOUTHEAST OF MOOSE CREEK PARKING AREA ON MACLEAN CREEK ROAD. Element occurrence data: IMMATURE . General site description: MOIST MEADOW. Land owner/manager: BLM: BUTTE DISTRICT, HEADWATERS RESOURCE AREA HUMBUG SPIRES PRIMITIVE AREA Comments: Information source: BOTANIST, MONTANA NATURAL HERITAGE PROGRAM, 1515 EAST SIXTH AVENUE, HELENA, MT 59620-1800. Specimens: LOWRY II, P. P. (1958). 1979. SPECIMEN #68181. MONT. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: 32 Federal Status: Element occurrence code: PMCYP036E0. 016 Element occurrence type: Survey site name: GRASSHOPPER CREEK BASIN EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: POLARIS Township: Range: Section: TRS comments: 006S 012W 30 Precision: G Survey date: Elevation: 6100 - First observation: 1958-08-19 Slope/aspect: Last observation: 1958-08-19 Size (acres) : Location: GRASSHOPPER CREEK BASIN, NEAR JACKSON ROAD TURNOFF. Element occurrence data: General site description: HAY MEADOW, MOIST CLAY LOAM, PROBABLY WET EARLIER IN SEASON. Land owner /manager: PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) BLM: BUTTE DISTRICT, DILLON RESOURCE AREA STATE LAND - UNDESIGNATED BEAVERHEAD- DEERLODGE NATIONAL FORESTS, DILLON RANGER DISTRICT Comments : SPECIMEN LABEL GIVES ELEVATION AS 6200 FT; MAPPED AT 6100 FT. Information source: BOTANIST, MONTANA NATURAL HERITAGE PROGRAM, 1515 EAST SIXTH AVENUE, HELENA, MT 59620-1800. Specimens: PAYNE, G. F. (S.N.). 1958. SPECIMEN #56264. MONT. !F.J. HERMANN . 17' 30" 45° 15' 113''07''30" '3^ Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 State rank: S2 Forest Service status; Federal Status: Element occurrence code: PMCYP036E0. 017 Element occurrence type: Survey site name: BIG HOLE RIVER EO rank: EO rank comments: SENSITIVE . County: BEAVERHEAD USGS quadrangle: FOX GULCH Township: Range: Section: TRS comments; 005S 015W Precision: Survey date: First observation: Last observation: 1955-09-08 1955-09-08 Elevation: 6340 Slope/aspect: Size (acres) : Location: 4 MILES NORTH OF JACKSON. Element occurrence data: General site description: LOW SEDGY MEADOW. Land owner/manager: PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) STATE LAND - UNDESIGNATED BEAVERHEAD- DEERLODGE NATIONAL FORESTS, DILLON RANGER DISTRICT BEAVERHEAD- DEERLODGE NATIONAL FORESTS, WISDOM RANGER DISTRICT Comments : Information source: BOTANIST, MONTANA NATURAL HERITAGE PROGRAM, 1515 EAST SIXTH AVENUE, HELENA, MT 59620-1800. Specimens: HERMANN, F. J. (12485). 1955. SPECIMEN #50031. MONT. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE . State rank: S2 Federal Status: Element occurrence code: PMCYP036E0 . 018 Element occurrence type: Survey site name: CENTENNIAL VALLEY EO rank: EO rank comments : County: BEAVERHEAD USGS quadrangle: SLIDE MOUNTAIN Township: Range: Section: TRS comments: 014S OOIW Precision: Survey date: First observation: Last observation: 18 G 1955-09-10 1955-09-10 Elevation: 6640 Slope/aspect: Size (acres) : Location: WEST OF UPPER RED ROCK LAKE. Element occurrence data: General site description: SEDGE MEADOW WITH CAREX PRAEGRACILIS, C. NEBRASCENSIS, JUNCUS BALTICUS, AGROSTIS EXARATA, A. ALBA. Land owner /manager: RED ROCK LAKES WILDERNESS RED ROCK LAKES NATIONAL WILDLIFE REFUGE STATE LAND - UNDESIGNATED PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) CENTENNIAL MOUNTAINS PRIMITIVE AREA Comments : Information source: BOTANIST, MONTANA NATURAL HERITAGE PROGRAM, 1515 EAST SIXTH AVENUE, HELENA, MT 59620-1800. Specimens: HERMANN, F. Jl (12490). 1955. SPECIMEN #50035. MONT. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE . State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 019 Element occurrence type: Survey site name: BASIN CREEK EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: HENRY GULCH Township: Range: Section: TRS comments: 013S 007W 11 W2 Precision: S Survey date: 1995-06-29 Elevation: 6720 - 6800 First observation: 1995-06-2 9 Slope/aspect: LEVEL Last observation: 1995-06-29 Size (acres) : 1 Location: TAKE RED ROCK RIVER ROAD EAST FROM LIMA AND CROSS RIVER. TAKE ROAD NORTH TO BASIN CREEK AND THEN EAST TO SPRING. Element occurrence data: 100-200 STEMS, FLOWERING AND EARLY FRUIT. General site description: OPEN, MOIST, BROAD VALLEY ALLUVIAL PLAIN. LIMESTONE PARENT MATERIAL, SILTY SOIL. ASSOCIATED SPECIES: JUNCUS BALTICUS, POA PRATENSIS, CAREX PRAEGRACILIS, IRIS MISSOURIENSIS, POTENTILLA GRACILIS, TRIFOLIUM LONGIPES. Land owner/manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: OBSERVED BY P. LESICA. DISTURBANCE BY EXOTICS, HIGH FORB COVER, AND TRAMPLING. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (6792). 1995. MONTU. ? 7 « 3 5 JV. 1 2 ■« Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 State rank: S2 Forest Service status: Federal Status: SENSITIVE Element occurrence code: PMCYP036E0. 020 Element occurrence type: Survey site name: BOX SPRING EO rank: B EO rank comments: SPECIES DOES NOT OCCUPY ALL MAPPED WETLANDS, ONLY ECOTONAL AREAS. County: BEAVERHEAD USGS quadrangle: PRICE CREEK VINEGAR HILL Township: Oils Range : 007W Section: 16 TRS comments ; E2; 21 NW4 Precision: Survey date: First observation: Last observation: 1995-06-20 Elevation: 7360 - 7920 1995-06-20 Slope/aspect: 10% / SOUTH 1995-06-20 Size (acres) : 1 Location: FROM SAGE CREEK ROAD, TAKE ROAD NORTH PAST BOX SPRING CA. 0.6 MILE. MAIN POPULATION IS ALONG CREEK BELOW UNNAMED SPRINGS. SUBPOPULATION IS CA. 0.9 MILE WEST OF BOX SPRINGS ALONG ROAD. Element occurrence data: 1000+ STEMS IN 2 SUBPOPULATIONS, FLOWERING. General site description: OPEN, MOIST RESIDUAL MOUNTAIN VALLEY. ALLUVIUM PARENT MATERIAL, SILTY SOIL. ASSOCIATED SPECIES: JUNCUS BALTICUS, CAREX PRAEGRACILIS, AGROPYRON CANINUM, POTENTILLA GRACILIS, TRIFOLIUM LONGIPES. Land owner/manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) Comments: OBSERVED BY P. LESICA. DISTURBANCE BY ROADS, CATTLE, EXOTICS, AND HIGH FORB COVER. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (6762). 1995. MONTU. ^mm^mmmmr -S, , Willi i^i_» o I Ml C>0 ^^^ DEPARTMENT OF THE INTERIOR '*"- GEOLOGICAL SURVEY W2. 0\J 3B900Qn r 44* 52' 30" '^ '^ Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 021 Element occurrence type: Survey site name: BLACKTAIL CREEK EO rank: EO rank comments: County: SILVER BOW USGS quadrangle: HOMESTAKE Township: Range: Section: TRS comments: 002N 007W 4 NE4NW4 Precision: S Survey date: Elevation: 5500 First observation: 1996-09-20 Slope/aspect: Last observation: 1996-09-20 Size (acres) : 1 Location: FROM BUTTE GO SOUTH ON 1-90 TO EXIT 278. GO WEST ON 4 MILE VUE ROAD CA. 0.37 MILES (JUST BEFORE BLACKTAIL CREEK CROSSING). Element occurrence data: 9 SUBPOPULATIONS, IN FLOWER. General site description: OPEN BOTTOM WITH SATURATED SOILS ON MICACEOUS, ALLUVIAL FLOODPLAIN. PLANT COMMUNITY DOMINATED BY CAREX SPP, ASTER JUNCIFORMIS, POTENTILLA ANSERINA AND JUNCUS BALTICUS. ASSOCIATED PLANT SPECIES INCLUDE CAREX NEBRASCENSIS, POA PRATENSIS AND GENTIAN SPP. Land owner/manager: PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) Comments : OBSERVED/COLLECTED BY P. HACKLEY, L. FAIRMAN, AND P. JOHNSON. IDENTIFICATION CONFIRMED BY P. LESICA. LAND IS GRAZED SEASONALLY. Information source: BOTANIST, MONTANA NATURAL HERITAGE PROGRAM, 1515 EAST SIXTH AVENUE, HELENA, MT 59620-1800. Specimens: HACKLEY, P. 1996. OEA RESEARCH. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 State rank: S2 • Forest Service status; Federal Status: SENSITIVE Element occurrence code: PMCYP036E0. 022 Element occurrence type: Survey site name: MOOSE CREEK EO rank: EO rank comments : County: SILVER BOW USGS quadrangle: MOUNT HUMBUG Township: Range: Section: TRS comments: OOIS 008W 10 NW4 OOIS 008W 9 NE4 Precision: Survey date: First observation: Last observation: 1997-08-03 1997-08-03 1997-08-03 Elevation: 6650 Slope/aspect: LEVEL Size (acres) : 1 Location: FROM HIGHLAND ROAD, TAKE MOOSE CREEK ROAD TO MALONEY PARK AREA. SITE IS JUST NORTH OF ROAD ON THE BORDER BETWEEN SECTIONS 9 AND 10. Element occurrence data: 4 STEMS IN 50 SQUARE METERS; CA. 160 STEMS TOTAL; MATURE FRUIT. General site description: UPPER MARGIN OF RIPARIAN WET MEADOW DOMINATED BY JUNCUS BALTICUS AND POTENTILLA GRACILIS, WITH MUHLENBERGIA RICHARDSONIS, POA PRATENSIS, FRAGARIA VIRGINIANA, ANTENNARIA MICROPHYLLA, AND ACHILLEA MILLEFOLIUM. PARENT MATERIAL IS CALCAREOUS, Land owner /manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: ■ EVIDENCE OF CATTLE TRAILS IN THE AREA. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens : ¥^S« Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE , State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 023 Element occurrence type: Survey site name: MOOSE TOWN SOUTH EO rank: EO rank comments: County: SILVER BOW USGS quadrangle: MOUNT HUMBUG Township: Range: Section: TRS comments: OOIS 008W 3 SE4 Precision: S Survey date: Elevation: 6780 First observation: 1997-08-03 Slope/aspect: LEVEL Last observation: 1997-08-03 Size (acres) : 1 Location: FROM HIGHLAND ROAD, TAKE MOOSE CREEK ROAD UNTIL IT CROSSES CREEK. Element occurrence data: 14 STEMS/100 SQUARE METERS. CA. 100 STEMS TOTAL. MATURE FRUIT. General site description: UPPER MARGIN OF RIPARIAN WET MEADOW ON HUMMOCKS. ASSOCIATED PLANTS INCLUDE POTENTILLA FRUTICOSA, CAREX PRAEGRACILIS, FRAGARIA VIRGINIANA, ASTER OCCIDENTALIS, DESCHAMPSIA CESPITOSA, JUNCUS BALTICUS, MUHLENBERGIA RICHARDSONIA. Land owner /manager: PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) BEAVERHEAD- DEERLODGE NATIONAL FORESTS, BUTTE RANGER DISTRICT BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: ROAD ADJACENT. SOME DREDGING OF CREEK HAS OCCURRED. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens : Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE . State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 024 Element occurrence type: Survey site name: BRUNDAGE CREEK EO rank: EO rank comments : County: BEAVERHEAD USGS quadrangle: METZEL CREEK Township: Range: Section: TRS comments: 013S 003W 27 SE4 Precision: S Survey date: Elevation: 6640 First observation: 1997-08-01 Slope/aspect: 2% / SOUTH Last observation: 1997-08-01 Size (acres) : 1 Location: BELOW "NORTH-SIDE ROAD" 0.5 MILE EAST OF ELM CATTLEGUARD. Element occurrence data: SMALL AREA (0.25 ACRE); GRAZED, POPULATION ESTIMATE NOT POSSIBLE. MATURE FRUIT. General site description: MOIST MEADOW ABOVE WET MEADOW ALONG RIVER AND JUST BELOW ROAD BORROW PIT. ASSOCIATED PLANTS INCLUDE JUNCUS BALTICUS, DESCHAMPSIA CESPITOSA, MUHLENBERGIA RICHARDSONIA, ANTENNARIA MICROPHYLLA, TARAXACUM OFFICINALE, ASTER OCCIDENTALIS . Land owner/manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments : ■ EVIDENCE OF DISTURBANCE: GRAZED THIS YEAR, ADJACENT TO ROAD. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens : i Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 025 Element occurrence type: Survey site name: CLOVER DIVIDE EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: LIMA DAM Township: Range: Section: TRS comments: W2; 2 E2 013S 006W 1 W First Last Precision: Survey date: observation: observation: S 1997-08-02 1997-08-02 Elevation: 7160 - 7240 Slope/aspect: Size (acres) : 20 Location: CA. 0.25 MILE SOUTH OF CLOVER CREEK-BLACKTAIL DEER CREEK DIVIDE. Element occurrence data: CA. 200 TOTAL STEMS WITH MATURE FRUIT IN AT LEAST 3 WIDELY SEPARATED COLONIES. General site description: ECOTONAL EDGE OF SUBIRRIGATED MEADOWS ALONG DRAINAGES. ASSOCIATED PLANTS INCLUDE JUNCUS BALTICUS, CAREX MICROPTERA, POTENTILLA GRACILIS, POTENTILLA ANSERINIA, CAREX PRAEGRACILIS, AND IRIS MISSOURIENSIS . Land owner/manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments : EVIDENCE OF DISTURBANCE: CATTLE TRAILS. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (7495). 1997. MONTU. • ^■^[^^^i^i^ Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 State rank: S2 Forest Service status: Federal Status: SENSITIVE Element occurrence code: PMCYP036E0. 026 Element occurrence type: Survey site name: LIMA RESERVOIR NORTH EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: MONIDA Township : Range : Section: TRS comments 014S 005W 30 W2 014S 006W 25 N2 Precision: Survey date: First observation: Last observation: Elevation: 6640 - 6680 1997-08-01 Slope/aspect: LEVEL 1997-08-01 Size (acres): 100 Location: ALONG ROAD TO RED ROCK LAKES CA. 3.5 MILES FROM MONIDA. Element occurrence data: STEMS GRAZED OFF. POPULATION ESTIMATE NOT POSSIBLE. General site description: MEADOWS ASSOCIATED WITH SMALL STREAMS AND SEEPS ALONG BASE OF RIDGE. ASSOCIATED PLANTS INCLUDE POTENTILLA ANSERINIA, POA PRATENSIS, CAREX PRAEGRACILIS, JUNCUS BALTICUS, MUHLENBERGIA RICHARDSONIS, IRIS MISSOURIENSIS, ASTER OCCIDENTALIS . Land owner/manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: LIVESTOCK GRAZING. Information source; Specimens : LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 State rank: S2 Forest Service status; Federal Status: SENSITIVE Element occurrence code: PMCYP036E0. 027 Element occurrence type: Survey site name: LIMA RESERVOIR SOUTHWEST EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: MONIDA Township: Range: Section: 014S 006W 16 TRS comments; NW4 Precision: Survey date: First observation: Last observation: 1997-08-01 1997-08-01 Elevation: 6600 - Slope/aspect: LEVEL Size (acres) : 1 Location: CA. 4 MILES NORTH-NORTHWEST OF MONIDA. Element occurrence data: 17 STEMS PER 100 SQUARE METERS, MATURE FRUIT. General site description: MEADOW ECOTONE BETWEEN JUNCUS BALTICUS/DESCHAMPSIA CESPITOSA WET MEADOW AND ARTEMISIA TRIDENTATA/AGROPYRON SMITHII STEPPE. ASSOCIATED PLANTS INCLUDE JUNCUS BALTICUS, DESCHAMPSIA CESPITOSA, CAREX PRAEGRACILIS, POTENTILLA GRACILIS, MUHLENBERGIA RICHARDSONIS . Land owner/manager: STATE LAND - UNDESIGNATED Comments: HIGH FORB COVER. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (7489). 1997. MONTU. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 028 Element occurrence type: Survey site name: SAND CREEK EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: CORRAL CREEK Township: Range: Section: TRS comments: 014S 005W 24 SE4 Precision: S Survey date: Elevation: 6680 - 6740 First observation: 1997-08-01 Slope/aspect: LEVEL Last observation: 1997-08-01 Size (acres) : 2 Location: OFF MAIN ROAD BETWEEN MONIDA AND RED ROCK LAKES. Element occurrence data: 230 STEMS PER 100 SQUARE METERS. OVER 10,000 TOTAL STEMS. MATURE FRUIT. General site description: MOIST MEADOW AT BASE OF SLOPE, PRESUMABLY SUBIRRIGATED. ASSOCIATED PLANTS INCLUDE CAREX PRAEGRACILIS, JUNCUS BALTICUS, AGROPYRON SPICATUM, HAPLOPAPPUS INTEGRIFOLIUS, TARAXACUM OFFICINALE. Land owner/manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) Comments : LITTLE RECENT DISTURBANCE. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (7493). 1997. MONTU. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE . State rank: 32 Federal Status: Element occurrence code: PMCYP036E0 . 029 Element occurrence type: Survey site name: UPPER DEADMAN CREEK EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: CABOOSE CANYON Township: Range: Section: TRS comments: 015S OlOW 22 SW4 Precision: S Survey date: Elevation: 6950 First observation: 1997-08-11 Slope/aspect: LEVEL Last observation: 1997-08-11 Size (acres): 2 Location: SOUTHWEST OF BANNACK PASS ROAD CROSSING OF DEADMAN CREEK. Element occurrence data: UNABLE TO ESTIMATE POPULATION SIZE. General site description: DRIER MARGINS OF WET MEADOW ALONG CREEK. ASSOCIATED PLANTS INCLUDE DESCHAMPSIA CESPITOSA, JUNCUS BALTICUS, CAREX PRAEGRACILIS, POA JUNCIFOLIA, MUHLENBERGIA RICHARDSONIS, POTENTILLA GRACILIS, AND CREPIS RUNG I NAT A. Land owner /manager: PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments : GRAZED; CATTLE TRAILS. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: S2 Federal Status: Element occurrence code: PMCYP036E0 . 030 Element occurrence type: Survey site name: UPPER BLACKTAIL DEER CREEK EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: WHISKEY SPRING LIMA DAM Township: Range: Section: TRS comments: 012S 006W 35 NE4 Precision: S Survey date: Elevation: 7190 - 7200 First observation: 1997-08-02 Slope/aspect: LEVEL Last observation: 1997-08-02 Size (acres) : 1 Location: ALONG WEST FORK BLACKTAIL DEER CREEK 0.7 MILES BELOW ANTONE ROAD. Element occurrence data: SMALL POPULATION. UNABLE TO ESTIMATE TOTAL NUMBER DUE TO GRAZING. General site description: DRIER MARGIN OF MOIST MEADOW ALONG CREEK. ASSOCIATED PLANTS INCLUDE POTENTILLA FRUTICOSA, JUNCUS BALTICUS, TRIFOLIUM REPENS, DESCHAMPSIA CESPITOSA, CAREX PRAEGRACILIS, POTENTILLA GRACILIS, TARAXACUM OFFICINALE. Land owner /manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: HEAVY GRAZING, CATTLE TRAILS. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: Kiinn f r^figaii^iii^AiUi Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE . State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 031 Element occurrence type: Survey site name: CABIN CREEK EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: ISLAND BUTTE Township: Range: Section: TRS comments: 014S OllW 23 SE4 Precision: S Survey date: Elevation: 7080 - 7100 First observation: 1997-08-11 Slope/aspect: LEVEL Last observation: 1997-08-11 Size (acres) : 5 Location: TAKE CABIN CREEK ROAD TO UPPER MOUTH OF CANYON, THEN 2-TRACK ROAD UP CABIN CREEK. Element occurrence data: NO SUBPOPULATION ESTIMATE POSSIBLE. General site description: MOIST MEADOW ALONG CREEK. ASSOCIATED PLANTS INCLUDE CAREX PRAEGRACILIS, JUNCUS BALTICUS, CIRSIUN EDULE, POA JUNCIFOLIA, CREPIS RUNCINATA, IRIS MISSOURIENSIS, POTENTILLA GRACILIS, AND ASTER OCCIDENTALIS. Land owner/manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA BEAVERHEAD- DEERLODGE NATIONAL FORESTS, DILLON RANGER DISTRICT Comments : HEAVILY GRAZED. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens : Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE , State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 032 Element occurrence type: Survey site name: COYOTE CREEK EO rank: EO rank comments : County: BEAVERHEAD USGS quadrangle: ISLAND BUTTE Township: Range: Section: TRS comments: 015S OllW 7 S2 Precision: S Survey date: Elevation: 7920 - 8270 First observation: 1997-08-10 Slope/aspect: CENTRUM SUBPOP: LEVEL, SECONDARY SUBPOP: 3%/NE. Last observation: 1997-08-10 Size (acres) : 1 Location: FROM MEADOW CREEK ROAD, TAKE ALKALI CREEK 2-TRACK SOUTHWEST CA. 1.3 MILES. HIKE TO COYOTE LAKE. Element occurrence data: TWO SUBPOPULATIONS. THE CENTRUM POPULATION CONSISTS OF CA. 100-200 TOTAL STEMS, WITH MATURE FRUIT. THE SECOND SUBPOPULATION HAS VERY LITTLE HABITAT; ONLY 1 STEM WITH MATURE FRUIT OBSERVED. General site description: CENTRUM SUBPOPULATION: DRIER PORTION OF SHRUBBY, MOIST MEADOW ALONG CREEK. ASSOCIATED PLANTS INCLUDE POTENTILLA FRUTICOSA, JUNCUS BALTICUS, CAREX SIMULATA, CAREX AQUATILIS, CAREX NEBRASCENSIS, CAREX MICROPTERA, ASTER OCCIDENTALIS . SECONDARY SUBPOPULATION: DRY MARGIN OF SUBIRRIGATED MEADOW ASSOCIATED WITH SEEP. ASSOCIATED PLANTS INCLUDE CAREX PRAEGRACILIS, CAREX MICROPTERA, POTENTILLA GRACILIS, POA JUNCIFOLIA, TRIFOLIUM LONGIPES. Land owner/manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA BEAVERHEAD- DEERLODGE NATIONAL FORESTS, DILLON RANGER DISTRICT PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) Comments: TWO SUBPOPULATIONS. CATTLE TRAILS. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (7502). 1997. MONTU. ,|L^-— , I I UlJl Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 State rank: 82 Forest Service status: Federal Status: SENSITIVE Element occurrence code: PMCYP036E0. 033 Element occurrence type: Survey site name: HILDRETH EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: TEPEE MOUNTAIN Township: Range: Section: TRS comments: 013S 012W 09 Precision: Survey date: First observation: Last observation: Elevation: 7400 - 7480 1997-07-30 Slope/aspect: LEVEL 1997-07-30 Size (acres) : 1 Location: 1.5 MILES SOUTH OF HILDRETH RANCH. Element occurrence data: TWO SUBPOPULATIONS. CENTRUM SUBPOPULATION: CA. 100 STEMS TOTAL, WITH MATURE FRUIT. SECOND SUBPOPULATION: CA. 600 STEMS TOTAL, WITH MATURE FRUIT. General site description: CENTRUM SUBPOPULATION: DRIER EDGE OF SUBIRRIGATED, MOIST MEADOW ALONG A SPRING CREEK. ASSOCIATED PLANTS INCLUDE CAREX PRAEGRACILIS, JUNCUS BALTICUS, DESCHAMPSIA CESPITOSA, MUHLENBERGIA RICHARDSONIA, ANTENNARIA MICROPHYLLA, CREPIS RUNCINATA, ASTER OCCIDENTALIS . SECOND SUBPOPULATION: MOIST OUTER MARGIN OF SUBIRRIGATED MEADOW ALONG STREAM. ASSOCIATED PLANTS INCLUDE JUNCUS BALTICUS, CAREX PRAEGRACILIS, MUHLENBERGIA RICHARDSONIS, POA PRATENSIS, TARAXACUM OFFICINALE, ASTER OCCIDENTALIS, POTENTILLA GRACILIS. Land owner /manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: A FEW LIVESTOCK TRAILS. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (7484). 1997. MONTU. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 034 Element occurrence type: Survey site name: KATE CREEK EO rank: EO rank comments : County: BEAVERHEAD USGS quadrangle: DEER CANYON Township: Range: Section: TRS comments: 012S OllW 18 NW4 Precision; S Survey date: Elevation: 6600 First observation: 1997-07-30 Slope/aspect: LEVEL Last observation: 1997-07-30 Size (acres) : 1 Location: HEAD OF KATE CREEK CA. 0.25 MILES PAST LAST GATE. Element occurrence data: 8 STEMS SEEN IN 200 SQUARE METERS OF HABITAT. MATURE FRUIT. General site description: ON HUMMOCKS IN WET MEADOW ALONG OLD SIDE CHANNEL OF CREEK. ASSOCIATED PLANTS INCLUDE JUNCUS BALTICUS, POA PRATENSIS, CAREX NEBRASCENSIS, MUHLENBERGIA RICHARDSONIS, ASTER OCCIDENTALIS, ANTENNARIA MICROPHYLLA. Land owner/manager: PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: EVIDENCE OF DISTURBANCE: HUMMOCKS, Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens : 47'30" 300 000^ S;r.- FEET Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE . State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 035 Element occurrence type: Survey site name: PORCUPINE CANYON EO rank: EO rank comments: County: BEAVERHEAD USGS quadrangle: ISLAND BUTTE Township: Range: Section: TRS comments: 014S OllW 15 NE4 Precision: S Survey date: Elevation: 7300 - 7360 First observation: 1997-08-10 Slope/aspect: 1% / SE Last observation: 1997-08-10 Size (acres) : 2 Location: TAKE CABIN CREEK ROAD TO UPPER MOUTH OF CANYON, THEN 2-TRACK ROAD UP CABIN CREEK. Element occurrence data: CA. 155 STEMS IN 50 SQUARE METERS; MORE THAN 20,000 STEMS TOTAL. MATURE FRUIT. General site description: MOIST OUTER MARGIN OF SUBIRRIGATED MEADOW ALONG STREAM. ASSOCIATED PLANTS INCLUDE CAREX PRAEGRACILIS, JUNCUS BALTICUS, MUHLENBERGIA RICHARDSONIS, POTENTILLA GRACILIS, TRIFOLIUM LONGIPES, ASTER OCCIDENTALIS. Land owner /manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: EVIDENCE OF DISTURBANCE: SOME OLD COWPIES. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens : Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 036 Element occurrence type: Survey site name: SIMPSON CREEK EO rank: EO rank comments : County: BEAVERHEAD USGS quadrangle: ISLAND BUTTE Township: Range: Section: TRS comments: 014S OllW 27 NW4; 28 NE4 Precision: S Survey date: Elevation: 7220 - 7310 First observation: 1997-08-10 Slope/aspect: 1% / EAST Last observation: 1997-08-10 Size (acres) : 4 Location: TAKE CABIN CREEK ROAD TOWARD MORRISON LAKE. Element occurrence data: CA. 91 STEMS IN 100 SQUARE METERS; MORE THAN 10,000 STEMS TOTAL. MATURE FRUIT. General site description: MOIST OUTER MARGINS OF SUBIRRIGATED MEADOW ALONG CREEK. ASSOCIATED PLANTS INCLUDE CAREX PRAEGRACILIS, MUHLENBERGIA RICHARDSONIS, POTENTILLA GRACILIS, TARAXACUM OFFICINALE. Land owner/manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) Comments : EVIDENCE OF DISTURBANCE: LIVESTOCK TRAILS. AREA MAPPED IS ENTIRELY ON BLM LAND. ADDITIONAL PLANTS ON NEARBY PRIVATE LAND ARE UNMAPPED. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (7504). 1997. MONTU. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 State rank: S2 Forest Service status: Federal Status: Element occurrence code: PMCYP036E0 . 037 Element occurrence type: Survey site name: TAYLOR CREEK EO rank: EO rank comments: SENSITIVE County: BEAVERHEAD DSGS quadrangle: BANNACK Township: Range: Section: 007S OllW 18 TRS comments: N2; 07 SE4 Precision: S Survey date: First observation: 1997-07-29 Last observation: 1997-07-29 Elevation: 6300 - 6320 Slope/aspect: LEVEL Size (acres) : 1 Location: BOTH SIDES OF TAYLOR CREEK SOUTH OF COUNTY ROAD. Element occurrence data: CA. 30 STEMS SEEN IN 200 SQUARE METERS OF HABITAT. MATURE FRUIT PRESENT . General site description: MOIST ECOTONAL MEADOW BETWEEN RIPARIAN WET MEADOW AND SAGEBRUSH GRASSLAND. ASSOCIATED PLANTS INCLUDE POA PRATENSIS, JUNCUS BALTICUS, TRIFOLIUM REPENS, CAREX PRAEGRACILIS, CAREX NEBRASCENSIS, AGROPYRON SMITHII. Land owner /manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: EVIDENCE OF DISTURBANCE: 40% COVER OF TARAXACUM. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (7479). 1997. MONTU, Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 038 Element occurrence type: Survey site name: GRASSY LAKE EO rank: EO rank comments: County: MADISON USGS quadrangle: CIRQUE LAKE VARNEY Township : Range : 007S 002W Section: TRS 08 NW comments: Precision: Survey date: First observation: Last observation: S 1997 07 27 1997 07 27 Elevation: 7150 - Slope/aspect: Size (acres) : 1 Location: FROM HWY 287 BETWEEN VIRGINIA CITY AND ENNIS, TAKE THE ROAD SOUTH AT THE MADISON - RUBY DIVIDE. Element occurrence data: 5-10 STEMS, MATURE FRUIT. General site description: VERY SMALL DEPRESSIONAL WETLAND; VERNALLY WET; PROBABLY OF GLACIAL ORIGIN. PLANT COMMUNITY: JUNCUS BALTICUS. ADDITIONAL ASSOCIATED PLANTS: POA PRATENSIS, CAREX PRAEGRACILIS, CAREX MICROPTERA. Land owner/manager: BLM: BUTTE DISTRICT, DILLON RESOURCE AREA Comments: ADJACENT ROAD MAY DISRUPT HYDROLOGY. Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, UNIVERSITY OF MONTANA, MISSOULA, MT 59812. Specimens: LESICA, P. (7470). 1997. MONTU. DETERMINED BY D. MURRAY . Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 State rank: S2 Forest Service status: Federal Status: Element occurrence code: PMCYP036E0. 039 Element occurrence type: Survey site name: EO rank: EO rank comments: County: POWELL USGS quadrangle: DEER LODGE Township: Range: Section: TRS comments: SENSITIVE Precision: Survey date: First observation: Last observation: Elevation: 97 Slope/aspect; 97 Size (acres) ; Location: DEER LODGE Element occurrence data: General site description: Land owner/manager: Comments: Information source: Specimens: Rydberg, P. A. (2128). 1897. NY, US. Annotated by D. Murray. Scientific Name: CAREX PARRYANA SSP IDAHOA Common Name: IDAHO SEDGE Global rank: G4T2 Forest Service status: SENSITIVE State rank: S2 Federal Status: Element occurrence code: PMCYP036E0. 040 Element occurrence type: Survey site name: EO rank: EO rank comments : County: GALLATIN USGS quadrangle: Township: Range: Section: TRS comments: Precision: U Survey date: Elevation: First observation: 18XX Slope/aspect; Last observation: 18XX Size (acres) ; Location: FORKS OF MADISON RIVER. Element occurrence data: General site description: Land owner/manager: Comments : Peter Lesica considers Hebgen Lake in Gallatin Co. to be the likely area where this collection was made, not Madison Co. as indicated in Lesica & Shelly (1991) . Information source: Specimens: Rydberg, P. A. and C. E. Bessey. (3762) . 18XX. NY, US. Annotated by D. Murray. MONTANA STATE ■■'^■^' ThI. -cover" page added by the Internet Archive for formatting purpose f'