ATTACHMENT SS2

REGION 2 SENSITIVE SPECIES EVALUATION FORM

Species: discoidea var. linearis / Linear-leaved Discoid Gumweed ( macronema var. linearis)

Criteria Rank Rationale Literature Citations Linear-leaved discoid gumweed is a regional endemic of southwest and • Anderson 1995 1 AB northwest Wyoming. Region 2 harbors a relatively large proportion of its range in the Distribution • Fertig 1992a within R2 southern Absaroka Range, northern Wind River Range, and Overthrust Belt within the • Fertig 1992b Shoshone National Forest, including Park and Fremont counties. • Fertig 1996 • Fertig 1998 In Wyoming, Narrowleaf goldenweed is found primarily on dry, clay-rich or cobblestone • Fertig 2000 terraces above large streams. These sites may be dominated by communities of • Hall 1928 Artemisia cana, A. tridentata var. vaseyana, viscidiflorus, and Poa • Hartman et al. 1991 secunda. Populations are also found on sandy-gravel bars and shores, stream • Mills and Fertig 1996 terraces at the ecotone of sagebrush and Pinus contorta stands, and on steep, whitish clay slopes (Fertig 1996). These riparian corridors associated with large streams are in • Nesom 1990 narrow bands across the landscape. Montana populations have been reported from a • Refsdal 1996 wider range of habitats, including lower mountain slopes, alluvial terraces, and glacial • Scott 1997 valleys. • University of Wyoming 1998 • Welp et al. 2000 Confidence in Rank High • Winkler and Wambolt 1991 Outside of Region 2, this species is found in southwest Montana and northwest • Anderson 1995 2 B Wyoming. In Wyoming, it is also known outside Region 2 from the Yellowstone Distribution • Cronquist 1955 outside R2 Plateau and Lincoln, Sublette, and Teton counties. • Cronquist 1994 • Fertig 2000 • Hall 1928 • Nature Serve 2002 • Nesom 1990

• Scott 1997

• Winkler and Wambolt 1991

Confidence in Rank High Not known. • - 3 D Dispersal Capability

Confidence in Rank High

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Species: var. linearis / Linear-leaved Discoid Gumweed (Haplopappus macronema var. linearis)

Criteria Rank Rationale Literature Citations Linear-leaved discoid gumweed is known from at least 18 extant occurrences in • Fertig 1996 4 B Wyoming, all of which have been discovered or relocated since 1981 (most recently in Abundance in • Fertig 2000 R2 1999). At least 8 populations occur within Region 2. It is also known from at least 6 • University of Wyoming 1998 historical records, several of which are too vague to be located. Census data are lacking for most occurrences, but those populations that have been surveyed are usually very small in number and area. The exceptions are populations in the Gros Ventre River drainage which typically contain 12-2000 individuals in areas of 0.5-10 acres.

In Wyoming, it is ranked “S2” and was removed as a species of special concern based on the number of records with large populations, and reports of it tolerating or favoring disturbance and heavy grazing. In Wyoming it currently recognized as a regional endemic of potential concern.

Confidence in Rank Low Populations are apparently stable, although trend data are lacking for most • Fertig 2000 5 B occurrences. Population Trend in R2

Confidence in Rank Low Not known. • - 6 D Habitat Trend in R2

Confidence in Rank High

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Species: Ericameria discoidea var. linearis / Linear-leaved Discoid Gumweed (Haplopappus macronema var. linearis)

Criteria Rank Rationale Literature Citations Threats are probably low for this species at sites on Bridger-Teton National Forest. • Fertig 2000 7 B The species is not preferred browse and may benefit from low level disturbance Habitat • Winkler and Wamboldt 1991 Vulnerability associated with recreational activities. Winkler and Wamboldt (1991) characterized or some of the Montana populations as restricted to roadsides and in areas that had Modification been heavily grazed, observations that were corroborated by Peter Lesica in a MTNHP survey for BLM on scattered tracts in southwestern Montana.

At least 5 occurrences are known from the Washakie and Teton Wilderness Areas and two or more populations are protected in Yellowstone National Park. Some populations could be impacted by mineral exploration and development on erosive soils. This species is managed for multiple use on Bridger-Teton and Shoshone national forests, Wind River Indian Reservation, and BLM Kemmerer Field Office.

Confidence in Rank medium Linear-leaved discoid gumweed is a multi-stemmed perennial shrub. Flower heads • Cronquist 1955 8 D number one to a few per branch. Flowering and fruiting occurs from July to Life History • Cronquist 1994 and September, and the fruits persist into October. • Fertig 2000 Demographics • Hall 1921 Life history information on this species, including life history stages, population structure, longevity, mortality, pollination biology and seed biology, are not available.

Confidence in Rank High Initial Evaluator(s): Date: February 23, 2002 Scott Laursen and Bonnie Heidel

National Forests in the Rocky Mountain Region where species is KNOWN (K) or LIKELY(L)1 to occur:

1 Likely is defined as more likely to occur than not occur on the National Forest or Grassland. This generally can be thought of as having a 50% chance or greater of appearing on NFS lands.

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Colorado NF/NG Kansas NF/NG Nebraska NF/NG South Dakota Wyoming NF/NG

NF/NG

y y

y y y Known Likel Known Likel Known Likel Known Likel Known Likel Arapaho-Roosevelt NF Cimmaron NG Samuel R.McKelvie NF Black Hills NF Shoshone NF X White River NF Halsey NF Buffalo Gap NG Bighorn NF Routt NF Nebraska NF Ft. Pierre NG Black Hills NF Grand Mesa, Ogalala NG Medicine Bow NF Uncompahgre, Gunnison NF San Juan NF Thunder Basin NG Rio Grande NF Pike-San Isabel NF Comanche NG

Literature cited Anderson, L.C. 1995. The Chrysothamnus-Ericameria connection (). Great Basin Naturalist 55(1):84-88.

Cronquist, A. 1955. Pt. 5. Compositae. In: Hitchcock, C.L., A. Cronquist, M. Ownbey, and J.W. Thompson (eds). Vascular of the Pacific Northwest. Univ. Washington Publ. Biol. 17(5): 1-343.

Cronquist, A. 1994. Intermountain Flora, Volume 5: . New York Botanical Garden, Bronx, New York.

Fertig, W. 1992a. Checklist of the Vascular flora of the west slope of the Wind River Range and status report on the sensitive plant species of Bridger-Teton National Forest. Unpublished report prepared for the Bridger-Teton National Forest by the Rocky Mountain Herbarium, University of Wyoming.

Fertig, W. 1992b. A floristic survey of the west slope of the Wind River Range, Wyoming. Unpublished Master's Thesis, University of Wyoming, Department of Botany.

Fertig, W. 1996. Status report on Haplopappus macronema var. linearis in Bridger-Teton National Forest. Unpublished report prepared by the Wyoming Natural Diversity Database, Laramie, WY.

Fertig, W. 1998. The status of rare plants on Shoshone National Forest: 1995-97 survey results. Report prepared by the Wyoming Natural Diversity Database, Laramie, WY.

Fertig, W. 2000. State Species Abstract: Ericameria discoidea var. linearis. Wyoming Natural Diversity Database. Available on the internet at www.uwyo.edu/wyndd

Fertig, W., R.L. Hartman, and B.E. Nelson. 1991. General floristic survey of the west slope of the Wind River Range, Bridger-Teton National Forest, 1990. Report prepared for Bridger-Teton National Forest by the Rocky Mountain Herbarium, University of Wyoming, Laramie, WY.

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Fertig, W., C. Refsdal, and J. Whipple. 1994. Wyoming Rare Plant Field Guide. Wyoming Rare Plant Technical Committee, Cheyenne Wyoming.

Fertig, W., L. Welp, and S. Markow. 1998. The status of rare plants in southwest Wyoming. Report prepared for the Bureau of Land Management by the Wyoming Natural Diversity Database, Laramie, WY.

Hall, H.M. 1928. The Genus Haplopappus, a phylogenetic study in the Compositae. Carnegie Institute of Washington.

Hartman, R.L., B.E. Nelson, and W. Fertig. 1991. General floristic/sensitive plant species surveys of Fish Creek/Moccasin Basin Implementation Area, Gros Ventre Burn Areas, and Willow Creek Implementation Area on Bridger-Teton National Forest, 1990. Unpublished report prepared for the Bridger- Teton National Forest by the Rocky Mountain Herbarium, University of Wyoming.

Mills, S. and W. Fertig. 1996. Field guide to rare and Sensitive plants of the Shoshone National Forest. Report prepared by the Wyoming Natural Diversity Database, Laramie, WY.

NatureServe. 2002. Explorer – an encyclopedia of life. Plant and animal data posted at www.natureserveexplorer.org, Arlington, VA.

Nesom, G.L. 1990. Taxonomic summary of Ericameria (Asteraceae: ), with the inclusion of Haplopappus sects. Macronema and Asiris.

Refsdal, C.H. 1996. A general floristic inventory of southwest Wyoming and adjacent northeast , 1994-1995. Unpublished report prepared for the Bureau of Land Management Wyoming State Office, Bureau of Land Management Vernal Supervisor's Office, US Fish and Wildlife Service, and US Forest Service Region 4 by the University of Wyoming, Rocky Mountain Herbarium, Laramie, WY.

Scott, R.W. 1997. The Alpine Flora of the Rocky Mountains. Volume 1 The Middle Rockies. University of Utah Press, Salt Lake City, UT.

University of Wyoming – Rocky Mountain Herbarium. 1998. Atlas of the Flora of Wyoming. Posted electronically through 1998 at: http://www.esb.utexas.edu/tchumley/wyomap/ and unposted accession information at the Rocky Mountain Herbarium through 2001.

Welp, L., W.F. Fertig, G.P. Jones, G.P. Beauvais, and S.M. Ogle. 2000. Fine filter analysis of the Bighorn, Medicine Bow, and Shoshone National Forests in Wyoming. Wyoming Natural Diversity Database, Laramie, WY.

Winkler, G. and C.L. Wambolt. 1991. Range extension, description, and habitat for Haplopappus macronema ssp. linearis (Asteraceae). Prairie Naturalist 23 (2): 101-106.

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