ATTACHMENT SS2

REGION 2 SENSITIVE SPECIES EVALUATION FORM

Species: aromatica / Aromatic Pussy-toes

Criteria Rank Rationale Literature Citations Region 2 contains a southern portion of the rangewide distribution of Aromatic • Dorn 2001 1 BA Pussytoes, in northwestern Wyoming. It does not occur in other Region 2 states. In Distribution • Fertig 1992, 1997, 1998, within R2 particular, it is known Bighorn and Shoshone national forests in the Absaroka, 1999, 2000a, 2000b Beartooth, Bighorn, Gros Ventre, Wind River, Wyoming, and Salt River Ranges, which • Evert 1984 include Bighorn, Fremont, Lincoln, Park, Sublette, and Teton Counties. • Scott 1997 • Marriott 1988 This species grows along sparsely vegetated ridges and summits at and above • Bayer 1989 timberline in crevices, scree, and rocky soils derived from limestone at 4500-10800 • Snow 1994 feet. This range of habitats is extensive though interrupted on the landscape. • University of Wyoming

1998 Confidence in Rank High • Welp et al. 2000 Aromatic Pussy-toes is a regional endemic of southwestern and southcentral Montana • Clark et al. 1989 2 B and northwest Wyoming. Reports from elsewhere in northwest North America have Distribution • Croft et al. 1997 outside R2 proven to be false. In Wyoming, it occurs outside of Region 2 in the Bridger-Teton NF, Grand Teton NP, and the BLM Cody Field Office.

Confidence in Rank High Unknown. It is among many alpine species of open habitats that are likely to be • - 3 D dispersed by wind to some extent. Dispersal Capability Confidence in Rank High

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Species: Antennaria aromatica / Aromatic Pussy-toes

Criteria Rank Rationale Literature Citations Over half of the 27 known occurrences are found on lands managed by Bighorn and • Fertig 2000a 4 CD Shoshone national forests. This species may be locally abundant when found, Abundance in • Wyoming Natural Diversity R2 although sometimes colonies can be mixed with other Antennaria taxa and censusing Database 2001 can be difficult.

Note: This species is ranked “S3” in Wyoming. The number of occurrences as well as the, breadth of their distribution, relative abundance, and low vulnerability were among the factors that were considered when it was removed from tracking as a Wyoming species of special concern.

Confidence in Rank High Although trend data are lacking for most occurrences, there appears to be little • Fertig 2000a 5 BD evidence of decline in numbers or range. Population Trend in R2

Confidence in Rank Medium Habitat quality of its rock outcrop and scree habitats is stable. • Fertig 2000a 6 B Habitat Trend in R2

Confidence in Rank High The habitat has low vulnerability and threats due to the ruggedness and inaccessibility • Fertig 2000a 7 C of the species' rocky habitat, often in the alpine zone. At least 10 populations are Habitat Vulnerability known to occur in designated Wilderness areas (Gros Ventre, Fitzpatrick, Absaroka- or Beartooth, North Absaroka, and Bridger) and Grand Teton National Park. Populations Modification are also found in the Osborn Mountain and Swift Creek research natural areas and in the proposed Bald Ridge and potential Beartooth Butte, Arrow Mountain, and Pat O'Hara Mountain RNAs.

Confidence in Rank High

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Species: Antennaria aromatica / Aromatic Pussy-toes

Criteria Rank Rationale Literature Citations Aromatic Pussytoes is a mat-forming herbaceous perennial that flowers in July – early • Evert 1984 8 D August. Individual are unisexual; it is not known whether reproduction is Life History • Marriott 1988 and primarily apomictic or out-crossing. Demographics Additional information on the species, including life history stages, population structure, longevity, mortality, pollination biology and seed biology, are not available.

Confidence in Rank High Initial Evaluator(s): Bonnie Heidel Date: 10 November 2001

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

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 X 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 Bayer, R.J. 1989. A systematic and phytogeographic study of Antennaria aromatica and A. densifolia (: Inuleae) in the western North American cordillera. Madrono 36 (4): 248-259.

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.

USDA-Forest Service R2 Sensitive Species Evaluation Form Page 3 of 6 ATTACHMENT SS2 Bayer, R.J. and G.L. Stebbins. 1993. A synopsis with keys for the genus Antennaria (Asteraceae: Inuleae: Gnaphaliinae) of North America. Canadian Journal of Botany 71: 1589-1604.

Bayer, R.J., D.E. Soltis, and P.S. Soltis. 1996. Phylogenetic inferences in Antennaria (Asteraceae: : Cassiniinae) based on sequences from nuclear ribosomal DNA internal transcribed spacers (ITS). American Journal of Botany 83(4): 516-527.

Chmielewski, J.G. 1993. Antennaria pulvinata Greene: The legitimate name for A. aromatica Evert (Asteraceae: Inuleae). Rhodora 95:261-276.

Clark, T.W., A.H. Harvey, R.D. Dorn, D.L. Genter, and C. Groves, (eds). 1989. Rare, Sensitive, and Threatened Species of the Greater Yellowstone Ecosystem. Northern Rockies Conservation Cooperative, Montana Natural Heritage Program, The Nature Conservancy, and Mountain West Environmental Services.

Croft, L.K., W.R. Owen, and J.S. Shelly. 1997. Interior Columbia Basin Ecosystem Management Project Analysis of Vascular Plants. US Forest Service.

Dorn, R.D. 2001. Vascular Plants of Wyoming, third edition. Mountain West Publishing, Cheyenne, WY.

Evert, E. F. 1984. A new species of Antennaria (Asteraceae) from Montana and Wyoming. Madrono 31 (2): 109-112.

Evert, E.F. 1984. A research natural area proposal and suitability investigation report for the Cathedral Cliffs Wetland Complex. Unpublished report prepared for The Nature Conservancy and the Wyoming Native Plant Society.

Evert, E.F. 1986. The Yellowstone region: endemics and other interesting plants. IN: Williams, J., ed. Rocky Mountain Alpines. American Rock Garden Society and Denver Botanic Gardens.

Fertig, W. 1992. 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. 1992. Checklist of the 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. 1997. Plant species of special concern on Shoshone National Forest: 1996 survey results. 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. 1999. The status of rare plants in the Bighorn Landscape. Report prepared for The Nature Conservancy Wyoming Field Office by the Wyoming Natural Diversity Database, Laramie, Wyoming.

Fertig, W. 2000a. State Species Abstract: Antennaria aromatica. Wyoming Natural Diversity Database. Available on the internet at www.uwyo.edu/wyndd

USDA-Forest Service R2 Sensitive Species Evaluation Form Page 4 of 6 ATTACHMENT SS2 Fertig, W. 2000b. Rare vascular plant species in the Wyoming portion of the Utah-Wyoming Rocky Mountains Ecoregion. Prepared for the Wyoming Nature Conservancy by the Wyoming Natural Diversity Database, Laramie, WY.

Fertig, W. and G. Jones. 1994. Establishment record for Osborn Mountain Research Natural Area within Bridger-Teton National Forest, Sublette County, Wyoming. Unpublished report prepared for US Forest Service Region 4, by the Wyoming Natural Diversity Database, Laramie, WY.

Fertig, W. and G. Jones. 1994. Establishment record for Swift Creek Research Natural Area within Bridger-Teton National Forest, Lincoln County, Wyoming. Unpublished report prepared for the US Forest Service, Region 4, by the Wyoming Natural Diversity Database, Laramie, Wyoming, Laramie, WY.

Fertig, W. and M. Bynum. 1994. Biological report on the proposed Bald Ridge Research Natural Area. Unpublished report prepared for Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, Wyoming.

Hartman, R.L. 1995. General floristic/sensitive plant species survey of the Gros Ventre Range, Wyoming. Unpublished report prepared for Bridger-Teton National Forest by the Rocky Mountain Herbarium, University of Wyoming.

Hartman, R.L. and B.E. Nelson. 1993. General floristic/sensitive plant species survey of the Wyoming and Salt River ranges, northern portions, Wyoming. Unpublished report prepared for Bridger-Teton National Forest by the Rocky Mountain Herbarium, University of Wyoming.

Hartman, R.L. and B.E. Nelson. 1994. General floristic/sensitive plant species survey of the Wyoming and Salt River ranges, southern portions, Wyoming and concluding remarks on the entire area. Unpublished report prepared for Bridger-Teton National Forest by the Rocky Mountain Herbarium, University of Wyoming.

Jones, G.P. 1991. Report on the proposed Bald Ridge Special Botanical Area. Unpublished report prepared for the USDA Forest Serivce, Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

Jones, G.P. and W. Fertig. 1999. Ecological evaluation of the potential Arrow Mountain Research Natural Area within the Shoshone National Forest, Fremont County, Wyomng. Unpublished report prepared for the Shoshone National Forest, USDA Forest Service by the Wyoming Natural Diversity Database, University of Wyoming.

Jones, G.P. and W. Fertig. 1999. Ecological evaluation of the potential Lake Creek Research Natural Area within the Shoshone National Forest, Park County, Wyomng. Unpublished report prepared for the Shoshone National Forest, USDA Forest Service by the Wyoming Natural Diversity Database, University of Wyoming.

Jones, G.P. and W. Fertig. 1999. Ecological evaluation of the potential Pat O'Hara Mountain Research Natural Area within the Shoshone National Forest, Park County, Wyomng. Unpublished report prepared for the Shoshone National Forest, USDA Forest Service by the Wyoming Natural Diversity Database, University of Wyoming.

Marriott, H.J. 1988. Survey of sensitive plant species on Shoshone National Forest. Unpublished report prepared for Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

Mills, S. and W. Fertig. 1996. Survey of plant species of special concern on the Shoshone National Forest, 1995. Unpublished report prepared for Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

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

Snow, N. 1994. The vascular flora of southeastern Yellowstone National Park and the headwaters region of the Yellowstone River, Wyoming. Wasmann J. Biol. 50(1-2): 52-95.

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.

Wyoming Natural Diversity Database. 2001. Ongoing documentation of sensitive species distribution, biology, status, and references for the state of Wyoming. University of Wyoming, Laramie.

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