" Aquilegia Newsletter of the Colorado Native Plant Society . . dedicated to the appreciation and conservation of the Colorado native flora” Volume 11, Number 3 NATURAL HISTORY WORKSHOPS Pikes Peak Research Station, the newest addition to the Colorado Outdoor Education Center at Floris- sant, will be sponsoring workshops in Colorado natural history. These workshops are especially designed for teachers, interpreters, natu- ralists, and all those who enjoy the out of doors. Graduate credit is available. The 1987 workshops include: Biology of Butterflies - June 19- 25; Plant Ecology and Evolution - July 5-10; and Rocky Mountain Natu- ral History: An Integrated Ap- proach to Ecology and Geology August 9-1^- For more information, contact ^^^r. Boyce Drummond, Director, Pikes Peak Research Station, Florissant, CO 80816, 689-2025. May 1987 BOARD MINUTES The CONPS Board of Directors met March 7 at the home of Jim Borland in Denver. Motions were passed to spend up to $200.00 to provide tables for the Foothills Nature Center where many CONPS workshops are held. The Board also voted to donate $50,00 each to the Colorado Environmental Lobby and the Colorado Environmental Coali- tion. Various committee and chap- ter reports were also discussed. Steve dKane reported that all of the plant abstracts/summaries for the Rare Plant Monograph have been written and are now being condensed for final editing. CALENDAR June 12-14 - Grand Valley Field Trip: Jim Borland and Joann Young June 27 - Florissant Field Trip: Mary Edwards June 28 - Northern Rampart Range Field Trip: Dave Powell and Dr. Neal Osborn July 1 1 - Holy Cross Field Trip: Steve Dougherty July 17-19 - North Park and the Park Range Field Trip: Dieter Wil- kin and Sue Galatowitsch ^5 ID L mMh CRESTED BUTTE WILDFLOWER FESTIVAL The Second Annual Crested Butte Wildflower Festi¥al has been scheduled for the weekend of July 11, 12, and 13‘, 1987. Events plan- ned for this year’s festival in- clude a Rocky Mountain Wildflower Workshop conducted by members of the Rocky Mountain Biological Labo- ratory (RMBL) research and teaching staff. These sessions will address identification of wildflower spe- cies with follow-up on short hikes into the surrounding mountains. A photographic workshop is also plan- ned and will be conducted by noted Colorado nature photographer John Fielder. An instructional program will be conducted on the planting of mountain wildflowers and methods of landscaping with plants native to the mountain region. This program will be conducted by Jim Borland, Plant Propagator at the Denver Botanic Gardens and will include a tour of local gardens and yards. Local artists an^._galleries Crested Butte will feature arts and crafts representative of Colorado wildflowers. A wildflower golf tournament will allow golfers to view the flowers while playing the Skyland Resort golf course. Guided horseback rides and a guided hike sponsored by the West Elk Chapter of the Colorado Mountain Club will also be available to festival par- ticipants. For more Information and to receive a complete program, contact the Crested Butte-Mt. Crested Butte Chamber of Commerce, P.O. Box 1288, Crested Butte, CO 81224-1288, 349- 6438. SOUTHWESTERN NATIVE PLANTS SYMPOSIUM The Native Plant Society of New Mexico is hosting this year’s Southwestern Native Plants Sympo- sium at the University of New Mexi- co in Albuquerque from June 18 through 19. Topics to be covered include: conservation, landscap- ing, propagation, ethnobotany, and economic and commercial uses. Par- ticipants will range from scien- tists and scholars to horticultural professionals and interested ama- teurs . For more information, write Southwest Native Plants Symposium, NPS-NM, P.O. Box 934, Los Lunas, New Mexico 87031 or call Lisa John- ston at 505-865-5608. 2 COLORADO NATIVE PLANT SOCIETY FIELD TRIP POLICIES The Society wishes to remind field trip participants of the guidelines for participation in Society trips. By joining a CONPS field trip you indicate acceptance of these policies. 1. Plant collecting is forbidden on CONPS field trips, with two exceptions I (1) Collecting is permissible for scientific study (with the appropriate collecting permit, if one is required for the area in question). ‘‘Scientific study'* means, for the purposes of this policy, study by a trained botanical scientist with an expectation that the study results will lead to published information; collected specimens will be deposited in a recognized, publicly*-accessible herbarium. (2) A trip leader or other person whose responsibility is to instruct trip participants may collect plants f or-immedia te demonstration, explanation, or keying for full identification. Such collecting should be done inconspicuously (so that persons not with the trip group are not offended or motivated to do likewise) and with reasoned regard for any possible effect on the plant population. However, collecting of rare, threatened, endangered, or sensitive species should never be done for instructional purposes. 2. Rides and Cost-Sharing Policy; Car-pooling and ride-sharing is encouraged on CONPS trips. All drivers who provide rides to others will graciously accept payment from passengers according to the following scale: 1 passenger (in addition to driver) 2 passengers 3 " 4 Passengers should pay the driver at the trip's conclusion, without being asked. 3. No pets are permitted on CONPS field trips. Pets trample plants, disturb wildlife, and annoj^ other trip participants. If pets must be brought along (although this is strongly discouraged), they must remain in or restrained to the owner's vehicle (i.e., walking about on a leash is not acceptable). 4. Field trips are designed primarily for adults, unless the trip description specifically states otherwise. Parents should consider the appropriateness of a given trip to a child. If a child is brought, the parent assumes full responsibility for keeping the child under strict control to prevent his/her damaging or disturbing the flora or fauna, or becoming a burden to the group. No child unaccompanied parent is permitted, 0 5. CONPS's expressed purpose is to promote appreciation and preservation of our flora. Use it lightly. Take care not to damage the very features you have come to see and enjoy. Take photographs, sketches, or other means of recording the plants you see, and do not pick plants or plant parts. 3 FIELD TRIPS Grand Valiev Friday to Sunday, June 12, 13, Leaders: Jim Borland and Joann Young Meet: Friday evening at Colorado National Monument headquarters at 7:30 pm or at the Fruita City Mar- ket Saturday morning at 8 am or Sunday morning at 7:30 am. Plans are for a Friday evening lecture beginning at 7:30 pm. Claudia Rector, who works at the Monument, will present a gener- alized program on the history, birds, and flowers of the Monument* Dr. Robert Young will also present a general geologic picture of the area - Grand Mesa, the Book Cliffs, Grand Valley and the Uncompahgre Plateau* A question and answer period will follow plus finalizing plans for the Saturday and Sunday morning field trips and lectures. The Saturday field trip will-**^ be an ecological profile starting^ at the Colorado River bottoms and taking the Land's End Road to the top of Grand Mesa. There will be stops along the way for plant, bird, or rock study. We should arrive at the summit about 2 pm* Weather permitting on Sunday, we will take a desert trail between County Road 13 and 16 over the Loma Hills. This should give a glimpse of interesting desert vegetation. We should be done by 11 am. Bring a light raincoat in case of inclement weather. Altitude gain on Saturday will be approxi- mately 5500 feet (highest point 10,000 feet), so additional warm clothes may be needed. Insect repellent is a necessity but four- wheel drive vehicles will not be necessary for either day. For more information and to register contact Nevin BeBee at -733-1038, - 4 Florissant Saturday, June 27 Leader: Mary Edwards (fleet: Call Mary for location This year’s trip to Florissant will be a special occasion. The herbarium of about 700 sheets col- lected in the National Monument in a plant inventory project by CONPS members has been taken to Floris- sant where it will be temporarily kept at the Pikes Peak Research Station, We will tour the research station and later visit the Nation- al Monument to look for plants needed to complete the inventory. The Monument is an interesting area with a diverse flora. Almost every trip there has added species to the local plant list. Bring lunch, water, and a small digging tool. Be prepared for a day in the sun. For more information, contact Mary Edwards at 233-8133. r Northern Rampart Range Sunday, June 28 Leaders: Dave Powell and Dr. Neal Osborn Meet: Large parking area at junc- tion of Rampart Range Road and Colorado Highway 67 (about 9-1/2 miles southwest of Sedalia) at 9 am. The Rampart Range extends from south of Denver to Colorado Springs. It is known for having unusual plant communities (aspen/ dwarf blueberry and aspen/beaked hazel, for example), relict plants normally found significantly east of Colorado (beaked hazel, wood lily, black sanicle, wild sarsapa- rilla, etc.), and plants growing at elevations much lower than normal (bunchberry, dwarf blueberry, west- ern thimbleberry , etc.). The trip has been scheduled to coincide with optimal blooming per- iod for wood lilies, a rare plant in Colorado. Bring lunch, water, raingear, and hiking boots (total hiking distance may be a mile or slightly more). High-clearance vehicles (pickups, carryalls, etc.) are re- commended although four-wheel drive is not necessary. For more information and to register, contact Dave Powell at 546-1076. 5 H oly Cross Saturday, July 11 Leader; Steve Dougherty Meet: Parking lot of the Minturn office of the US Forest Service at 9:30 am. To reach Minturn, take the Leadville (Highway 24) exit on I«70, Limit: 20 The focus of this trip shall be the ecology of upper montane and subalpine wetlands and the environ- mental factors of distribution within them, Steve will also dis- cuss plant physiology, geology and hydrology as it relates to species in this area. The Holy Cross Wilderness is the site of the existing and plan- ned water diversion projects (Home- stake I and II). This field trip will present an opportunity to examine and discuss the impacts these diversions have on high- altitude wetlands. We will see a variety of wet- land types including a spike-rush bog with oottongrass and willow/ sedge communities. Bring lunch, water, raingear, and old sneakers and dry socks. Participants must prepare for wet conditions. Steve might take in-j^ terested individuals across a shal- low stream to examine other wet- lands although this is optional. Hiking distance will be appro- ximately 2-1/2 miles each way with a 600 foot drop to the stream over the last 1/2 mile. For more information and to register, contact Nevin BeBee at 733-1038. 6 North Park mA the Park laage Friday to Sunday, July 17 - 19 Leaders: Dieter Wilken and Sue ,^alatowitsch ^ leet: Friday evening at Grizzly Creek Campground, about 13 miles west of Hebron. Saturday at 9 am (call for location). Sunday at 8 am in Hebron on Highway 1^ between Muddy Pass and Walden, Limit: Saturday - 10 Sunday - 15 This field trip will have a dual purpose. On Saturday, Sue will conduct a trip to sites inhab- ited by Phaoella formosula (North Park Phacelia) to study population size as part of a long-term moni- toring program. Participants will be introduced to this endangered species and the techniques used in the study and will be making a worthy contribution to the study by aiding in field work. The location of the populations will afford an opportunity to become familiar with some of the associated flora. On Sunday, Dieter will lead a ^^ike to visit populations of Rhodo- dendron in the Park Range, The trip will involve a 6 mile round- trip hike with an elevation gain of about 1000 feet to Lake Katherine at 9800 feet. Rhododendron is relatively abundant at Lake Kath- erine and there is high probability of good flowering during this week- end. The trail passes through a series of wet meadows and stands of subalpine coniferous forest. A high diversity of species in flower is expected, Including several rarely encountered in Colorado. Camping is available at Griz- zly Greek Campground (Routt NF). Participants should bring their own camping equipment as well as food and water. (Water may or may not be available at the campground.) A daily fee may also be charged at the campground. Come prepared for cold nights, bright sun, and summer thunderstorms. Participants should prepare lunch and bring water for both trips. Bring soft-soled shoes for Saturday, good hiking shoes for Sunday, Participants must register for Saturday or Sunday or both trips. Car-pooling from the campground will be necessary for both trips. For more information and to register, contact Sue Galatowitsch at S66-3311 (day) or 532-ii635 (eve- nings) . 7 THE SEARCH FOR ORCHIDS It has been about two years since I last reported upon the status of some of the rarer native orchids of Colorado, and there have been some interesting developments in that time. The rarest orchid in the ele- ven contiguous western United States apparently is Malaxis mono- ohvllos ( M . brachVDoda ) . The or- chid is fairly common in Alaska and across Canada, but occurrences in Colorado and California are dis- junct over 1000 miles south from the plant's main range* The Cali- fornia Native Plant Society lists it as probably extinct in Califor- nia, where it was last seen in 1947 . The only other western lo- calities are in Colorado, Only one plant was seen near Boulder in 1986 * Almost as rare is Soiranthes diluvialis . There are only a few sites in Colorado, Utah, Nevada, and Arizona. New sites were dis- covered July 30 , 1985 and July 24, 1986 in Boulder open space. This Boulder County population is the largest known, with about 5500 plants counted during 1986. An old specimen collected in I 856 by Henry Engelmann (George Engelmann's brother) in Weld County or Horgan County along the South Platte has been idenfified by Dr. Charles Sheviak as Soiranthes diluvialis . With the previously known Clear Creek sites, there are now 4 known occurrences in Colorado. There is a site along the Green River in Daggett County, Utah, just a few miles west of the Colorado state line. In the recently published Flora of the Uintah Basin . authors Neese and Goodrich erroneously re- duce diluvialis to synonymy under Sjt_ oorrifolia . a species of the Sierra Nevada and Cascades. The Green River specimen is cited by Neese and Goodrich, but both Dr. Sheviak and I have seen both spe- cies and the specimen, and ^ dilu- vialis has nothing to do with ^ £0..Cri fS iIi...a,- Although relatively common as orchids go, Soiranthes romanzof fia- -^ na was photographed by Judy Von Ahlefeldt in an unusual situation on July 28, 1984. Her observation was made in the Black Forest region of northern El Paso County, at 78 OO feet. This is one of the lowest and earliest observations of this orchid and is certainly the fur- thest east in Colorado. The orchid is usually confined to the moun- tains above 8000 feet. Listera convallarioides is known from 4 sites in Colorado, This vary rare orchid was seen at 3 of the 4 sites in 1985-86, but is not very common even at those lo- calities. There are a few popula- tions at scattered localities in Wyoming and Utah and is disjunct in the Santa Catalina Mountains above Tucson, Arizona. The orchid is more common in Canada. Listera borealis . formerly considered extremely rare in Colo- rado is now known from 7 sites in 6,^ counties (Mesa, Garfield, Grand, ^ Clear Creek, Chaffee, and Gunnison [2 sites]). The orchid was col- lected in the Medicine Bow Moun- tains of southern Wyoming on June 28, 1986 * This was a county record for Albany County and the site forms a bridge between northern calcaolos 8 Colorado sites in Grand and Gar- field Counties and central Wyoming sites in the Wind River Mountains. plant seems to have a fairly I ontinuous distribution from nor- thern Canada southward to central Colorado in the coldest and highest mountains . Epioactis gjgantea has a huge range from southern Canada to cen- tral Mexico and west of the Great Plains, In Colorado, it is quite rare, with only 5 sites, mostly in the Uncompahgre Plateau. A speci- men collected by T. S. Brandegee in 1875 in the San Juan River Valley was seen at the Jepson Herbarium at the University of California, Ber- keley. Although attributed to Co- lorado by the collector, it could be from anywhere in the "four cor- ners” area. The Poncha Springs (Chaffee County) population first visited in the 19th century is still in existence. Plants were seen and photographed July 5, 1986. This is the only eastern slope population in Colorado, but there ^^oes not seem to be any reason why should be so restricted. There are populations in the Rio Grande Valley in north-central New Mexico and in the Canadian River Valley in northeastern New Mexico, plus popu- lations in Oklahoma and Texas. The bog-orchid PlatantlLera sparsiflora C Habenaria sparsiflora . Limnorchla sparsiflora ) was col- lected in 1972 in Routt County by Dr. Jack Carter and the specimen was seen at Colorado College. This orchid is now known from Routt, Eagle, Pitkin, Mesa, Montrose, San Miguel, and Saguache Counties, Plants previously identified as Habenaria sparsiflora in south- eastern Utah have been given the new name Habenaria zothecina by Dr. Stan Welsh of BYU. The photo of IL. sparsiflora in John Long’s "Native Orchids of Colorado" was taken at Arches National Park and illus- trates zothecina . A specimen from the same spot where Dr. Long ^^btained his picture is cited by .elsh. Flowers of Habenaria zothe- cina seem to have much longer spurs that sort of hang down and hug the plant stem, while typical Habenaria ^,p,arsiflora (Pla t a p yigra s p q jigi - flora ) flowers have the spur stick- ing rigidly out the back, rather perpendicular to the stem. It seems possible that H_t. zothecina may be a disjunct population of the more southern Platanthera limosa ( Habenaria limosa ) . Pat Pachuta of the Denver Botanic Gardens collected Piperla unalaschensis in Grand and Eagle Counties in 1986, Both are county records. This orchid is now known from 11 counties, including Dolores County in southwestern Colorado. It may possibly be in New Mexico. Taxonomy of the genus Piperia , of which P_i_ unalaschensis is the only species in Colorado, was revised by J. D, Acherman and published in the Botanical Journal ot the Linnean Mcietv . V. 75, pp. 245-270 (1977). Yellow ladies’ slipper ( Cvpri- pedium calceolus ) was found at a new locality in Las Animas County, June 17 , 1985 . Over 40 plants were seen. The plants were seen in bud a year later on June 8, I 986 . Corallorhiza striata was ob- served and photographed in Monte- zuma County on June 15, 1985, but only two plants were found and no specimen was taken. The relatively few sites are widely scattered in the mountains of Colorado. Persons interested in rare plants are advised to obtain a copy of the Native Plant Society’s guidelines for collection of plant specimens, the Colorado Natural Areas Program’s list of plant spe- cies of special concern, and to thoroughly know the rare plants before attempting to make herbarium specimens. Any collections cited above have been placed or were seen at the Colorado College, Denver Botanic Gardens, University of Co- lorado, Colorado State University, or University of Wyoming (Rocky Mountain) herbaria. Bill Jennings. 9 FRONT RANGE SEED ANALYSTS Front Range Seed Analysts (FRSA) is a newly formed organiza- tion comprised of Seed Analysts. The need for this organization became evident as more Seed Ana- lysts began working the intermoun- tain and high plains areas of the west , Many native species have never been included in the Association of Official Seed Analysts (AOSA) Rules for Testing Seed. These species are increasingly finding their way into commerce. Other species, com- monly grown in this area, require special handling and testing pro- cedures. Thus, the seed industry of the intermountain and high plains is very unique. The purpose of FRSA is to inform, educate and support the area seed community. Current and new developments in seed testing will be disseminated by quarterly newsletters and periodic seminars. Members of the FRSA, in cooperation with researchers at Colorado StaJ^^ University, the Colorado Seed Lab"^ ratory, the National Seed Storage Laboratory, and area seed com- panies, will actively present the special needs of the intermountain and high plains seed community before AOSA, FRSA invites Mui legia readers to attend a Summer Seed Symposium on July 17, 198? at Colorado State University, Speakers from seed companies and seed laboratories in the Front Range area will present topics including seed law problems, germplasm preservation, seed iden- tification, and seed testing tech- niques (electrophoresis and tetra- zolium tests). For registration information contact Symposium Chairman, Bill Ebener, Colorado Seed Laboratory, E10 Plant Science Bldg., Colorado State University, Fort Collins, CO 80523, 491-6406. Ecology of Wetlands Workshop On February 7, Steve Dougherty presented a workshop on the Ecology of Wetlands in the Colorado montane region. Emphasis was on the wet- lands of the Holy Cross Wilderness which are threatened with partial drainage by the Homestake II water diversion project. Wetlands are areas inundated or saturated with water for part of the year. Mountain wetlands in Colorado depend on snowmelt for their existence and are relatively nutrient rich. True bogs, which depend on rainfall or snowmelt and are nutrient poor, probably don^t exist in Colorado. Steve described the various geological, hydrological, and topo- graphical factors which determine the locations of plant communities in wetlands. The duration of spring flooding and depth of the water table are important factors influencing wetland plants. Wetlands plants grow in anae- robic conditions much of the time. Various physiological adaptations, such as anaerobic metabolism ending at malic acid rather than toxic ethanol, were discussed. Wetlands are vital components of many ecosystems. Steve des- cribed many of their functions such as groundwater recharge, shoreline anchoring, and food chain support. Wetlands mitigation to preserve wetland values was also discussed. Steve’s program certainly in- creased my understanding of the functioning of wetlands. I believe a future field trip to a wetland would be very educational. _ Rick Brune 10 COLOHADO PESTICIDE NETWORK Spring is here and with it crr^eB the predictable onslaught of t jticides in the environment, our city and county parks and other public lands as well as lawns and diseased trees. An advertisement for the pes- ticide Tordon recently came in the mail: ”Tordon kills the meanest weeds in the west”, it said. And their list of these "meanest weeds" included leafy spurge, Canada thistle, diffuse knapweed, lupine, snakeweed, fringed sagebrush, loco- weeds, yellow toadflax, yellow starthistle, dalmation toadflax, absinth wormwood, lambert crazy- weed, plains prickly pear, field bindweed, low or plains larkspur, rabbitbrush, death camas, and musk thistle. As sales and use of these pesticides increase so also do their unstudied side effects. What impact will Tordon or other weed killers have on Colorado’s native /TV INFORMATION NEEDED This spring the Jefferson County Nature Association (JCNA) will begin compiling and updating plant species lists for park and open space areas in Jefferson Coun- ty. If you have information on species occurrence or know of pre- viously compiled lists, please con- tact Sally White at 697-5^39 (eve- nings). We already have a 198 1 species list for Lookout Mountain Conference and Nature Center com- piled by Mary Edwards. The Jefferson County Nature Association, a non-profit organiza- tion, was established to explore natural areas in Jefferson County, to educate others of their impor- tance, and to conserve and preserve habitat for wildlife and plant species indigenous to the county. JCNA will be conducting field trips 1p»^obtain inventory data pertinent V these purposes. Contact Sally White for more information. plants or soil biota? We at the Colorado Pesticide Network are just beginning to look at the many uses of pesticides in Colorado. We welcome people to the network who are interested in the pesticide issue. And we welcome those who are interested and know- ledgeable about native plants and the impact of pesticides on them. Knowledge concerning non-chemical control of noxious weeds is also needed. To subscribe to the bimonthly newsletter, send a donation ($5 is average) to Colorado Pesticide Net- work, c/o Colorado Environmental Coalition, 2239 E. Colfax, Denver, CO 80206-1390. To volunteer exper- tise, please contact Elizabeth Otto at 393-0466 or Angela Medbery at 433-2608 11 President Vice-President Secretary Treasurer OFFICERS Eleanor Von Bargen 756-1400 Steve 0»Kanfe 477-0183 Meg Van Ness 279-2569 Myrna P, Steinkamp 226-3371 SCHEDULE OP MEMBERSHIP FEES I'if® I 25 O-OO Faraily or Dual $12,00 Supporting 50.00 Individual 8.00 Organization 25.00 Student or Senior 4.00 3CAaD OF DIKECTOHS Jis Borland IBS) Oenver 329-5198 Carol Brandt (8"^ ?t. Collins 431-5251 Virginia Crcsty, Lafayette 556-5303 Mirian Cennan Boulder ~^2-"C20 Mark C-alatoi-itsclt (36; rertncud 532-4635 Elizatetn Otto (33) Idanc Strings 56'’-23§“i Velna Hionards (36) En-:lewood ■;'5-^-5i32 les Shader (o’") Ft. Collins 184-010^ Elsar.cr Ten Bargen (B-") Lenvar T55-'^ Chapter Presidents (Members of Board) Boulder Virginia Crosby 666-5303 Denver Metro Peter Root 433-9340 Ft. Collins Carol Brandt 484-9251 Conservation COMMITTEES Sue Martin 226-3371 Editorial Peter Root 433-9340 Education Miriam Denham 442-1020 Field Trips Nevln leBee 733-1038 Florissant Mary Edwards 233-8133 Horticulture 4 Gayle Weinstein 333-3024 Rehabilitation Membership Myrna Steinkamp 226-3371 Publicity Workshops Bill Jennings 494-5159 ' NEWSLETTER CONTRIBUTIONS Please direct all contributions to the newslet- ' ter to Peter Root 4915 Meet 3l3t Avenue Denver, CO 80212 Deadlines for newsletter materials are February 15 , April 15, June I 5 , August 15, October 15 and December I 5 . There la a special need for short items such as some unusual information about a plant, a little known botanical term, etc. Please include au- thor's name and address, but items will be printed anonymously If requested, MEMBERSHIP RENEWALS AND INFORMATION Please direct all membership applications, re- newals and address changes to the MEMBERSHIP chairperson, in care of the Society's mailing address. Please direct all other inquiries regarding the Society to the SECRETARY In care of the Soc- iety's mailing address. Colorado Native Plant Society P.0, Box 200 Fort Collins, Colorado 80522 Time Value Material - Mailed on or about May 15 N Of) -pro f i t Organ Lznt i on U.S, Postage PAID P-'rmil. if 1475 Donvnr*, Colorado dr. dexter W. HESS ":-202 SANTA Fb AvE.™ r; JUNTA CO 81.050 COLORADO NATIVE PLANT SOCIETY FORT COLLINS CHAPTER One of our main goals for this summer Is to compile a plant list of the species at the pinyon grove in Owl Canyon. This area is listed as a State Natural Area and contains prehistoric archeological sites. I hope that you can join us for one (or all!) of our monthly fieldtrips to Owl Canyon. MAY 3 SUNDAY 2:00 PM MAY 13 WEDNESDAY 7:30 PM ***MONTHLY MEETING*** .-^AY 23 SATURDAY 9:00 AM JUNE 7 SUNDAY 2:00 PM JULY 8 WEDNESDAY 4:00 PH JULY 18 SATURDAY AUGUST 8 THURSDAY 4:00 PM Owl Canyon State Natural Area pinyon grove fieldtrip for compiling a floral inventory of this unique area. LANDSCAPING WITH NATIVE PLANTS. A program by Herb Schaal from Edaw Inc. on using native perennials which are well adapted to this climate. Room E112, Plant Sciences Bldg, at CSU. Spring Wildf lowers of the Foothills and Potluck Picnic at Patricia Grant's house NW of Port Collins^ 515 W County Road 72. Please bring your own dishes, beverage, and a covered dish. (See note below concerning directions.) Owl Canyon State Natural Area pinyon grove fieldtrip. Owl Canyon State Natural Area pinyon grove fieldtrip. Phacella formosula fieldtrip where we will help conduct a census of this rare plant found near Walden, CO. Limit: 8 people. Call Sue Galatowitsch to reserve your place on the trlp^ 866-3311 (during the workday only). Owl Canyon State Natural Area pinyon grove fieldtrip. For all of the fieldtrips (and picnic) we will meet at the times noted above at the Safeway Parking lot on the corner of Mulberry and College. There we will receive directions and carpool to the fieldtrip site. For all of the fieldtrips please remember to wear over-the-ankle boots, Tring sun protection, water, and a sack lunch/dinner. FOR MORE INFORMATION CALL: BETSY NEELY 224-4193 DEREK MARCHI 224-3324 * ' ■* * BOULDER CHAPTER - FIELD TRIPS ^ * • * * COLORADO NATIVE PLANT SOCIETY * * * ik*‘ki(**i(it‘kitic'k’k'k±icic • a* American spikenard Spreading woodfern Wood lily Broadleaf twayblade Addersmouth orchid Weber monkey flower White-flowered azalea Twoleaf groundsel Western ^ CLar j (jrantf) Woodland Astragalus humll 1 Imus Astragalus llnifollus Astragalus schmolllae Echinocereus trlglochldlatus var. Inerrals Erlogonum brandegel #frasera coloradoens 1 s Gllla stenothrysa Herrlckla horrlda Lupinus crassus • Lygodesmla aoloresensis Mlrabllls rctundifolla Pedlocactus Oegener beardtongue JuL.y dl/srs^J Shrubland Astragalus C'onqulstll Astragalus microcymbus Astragalus osterhoutll Conlmltella will lams 11 • Erlcginum pe'lnoph*. lum crlogjnum cl ivel latum Hacke' la gra :1 lenta Ipomopsls pcjyantha var. polyantha Lesque'ella arulnosa Lomatlum coni inn urn Lomafum lat * Icbum #Hentr 2 1 ’ i deisa #Neooarrya mejarrhlza ^Penstemon granamll ^enstemon harrlngtonll Penstemon pa^'v! floras ^Penstemon recrorsus Sclerocactus glaucus Cronquist's mllkvetch Skiff mllkvetch Osterhout's mllkvetch williams conlmltella Clay-lGvIng wild-buckwheat /Utfy CMca/TJZOSbJ Comb-wash wild-buckwheat Stickseed Many-flowered gllla Pagosa bladderpod Colorado desert-parsley 9road-Ieaf desert parsley Royal Gorge stlckleaf ^Juuf AuO^^T C CH^rrE ^ Bigroot neoparrya * C cT) Graham's beardtongue Harrington's beard tongue C SRANDt EAOlE ROUT) Smal 1 -Flowered beardtongue ^ Adobe beardtongue MA/ ( DELTA MOA/TP OSBj Uinta Basin bookless cactus Grassland • Ambrosia linearis Astragalus rlpleyl Cr/ptantha aierta Eustoma granllflorum •Gaura neomexicana ssp. coloradensls Hypoxls hlrsjta • Parthenlum alplnum ecPASO MtOiAJA Streaked ragweed AU6UST ( £l&EPT } Ripley's ml Ikvetch Grand Junction cats-eye Showy prairie gent Ion T - Colorado butterfly weed -Juty ^ A^6t/S7~ KWcEP-^ Eastern yellow stargrass Alpine feverfew MAy ( WEuo) . The Rare Native Plants of Colorado Scientific nawe Coffimoft name . Forests Aral la racemosa •Oryopterls expansa Llllum phi ladelphlcum Llstera conval larlodes Malaxls brachypoda Mlmulus genmlparus Rhododendron alblflorus Seneclo dlmorphophyl lus var. Intermedlus # Trll 1 lum ovatum American spikenard Spreading woodfern Wood Illy Broadleaf twayblade Addersmouth orchid Weber monkey flower White-flowered azalea Twoleaf groundsel Western ^ Gnxnef) Woodland Astragalus humllllmus Hancos mllkvetch Astragalus llnlfollus Grand Junction mllkvetch Astragalus schmolHae Schmoll's mllkvetch Echlnocereus trlglochldlatus var. Inerrals Spineless hedgehog cactus Erlcgonum brandegel _ Brandegee wl Id-buckwheat o- ^ rt, _ x #frasera coloradoens Is 'Colorado Gentian D/fOi^ Gll la stenothrysa Herrlckla horrlda Luplnus crassus • Lygodesmla soloresensls MlrabllU rctundlfolla Pedlocactus knowltonll #Pensc?mon degene rl Narrows tern gl 1 la Horrid herrlckla Payson's lupine Dolores skeletonplant Ju^E C Round leaf four o'clock Knowlton's cactus yi ^ Oegener beard tongue JuL.y CFRtfMOh/T ^ (LusrB/^ ) Shruhland Astragalus C'onqulstll Astragalus m^crocymbus Astragalus osterhoutll Conlmitella wllllamsll • Erlcginum pe‘lnophl!um Erlogjnum cl ival latum Hacke * la gra:1 lenta Ipomoosls pc’yantha var, polyantha Lesque‘ena arulnosa Lomatlum con: Inn am Lomat'um lat'lcbum #HentZ 2 » ' i densa ^Neoparrya megarrhlza ^Penstamon granamll ^Kenstemon harrlngtanll Penstemon parvlflorus ^Penstamon retrorsus Sclerocactus glaucus Cronqulst’s mllkvetch Skiff mllkvetch Osterhout’s mllkvetch williams conlmitella Clay-loving wild-buckwheat /Way (MoA/TI^OSey Comb-wash wild-buckwheat Stlckseed Many-flowered gl 1 la Pagosa bladderpod Colorado desert-parsley Broad-leaf desert parsley airecF Royal Gorge stlckleaf ^JuLy AuCfUST C /^/^’/T/Wty/VTy rt Bigroot neoparrya ^ ‘ C UieUO , 6f(AN Graham's beardtongue ( R,o B Harrington's beard tongue C SRANO. EA6L£ R 0 (JT) Smal t -flowered beardtongue Adobe beardtongue AiAy ( DEuTA ^OAJTR OSEJ Uinta Basin hookless cactus Grassland •Ambrosia linearis Astragalus rlpleyl Cr/ptautha ajerca Eustoma granllPlorum •Gaura neomexicana ssp. coloradensis Hypoxls hlrsjtd #Parthenlum alplnum Streaked ragweed fyUdUST ( tlLBERT y Ripley's ml Ikvetch Grand Junction cats-eye Showy prairie gent Ion A _ 'N Colorado butterfly weed Juiy ^ v Wx: L.P^ Eastern yellow stargrass Alpine feverfew AiAy ( WBeo) .