ATTACHMENT SS2

REGION 2 SENSITIVE SPECIES EVALUATION FORM

Species: spicata ssp. robruthii / Kirkpatrick’s Ipomopsis (I. spicata var. robruthiorum)

Criteria Rank Rationale Literature Citations Kirkpatrick’s Ipomopsis occurs in the Absaroka Mountains of Park County, Wyoming, • Dorn 2001 1 A on the Shoshone National Forest. It does not occur in any other Region 2 state. Distribution • Fertig 1995, 1997, 1998, 2000 within R2 • Fertig et al. 1994 This taxon is found on montane, sandy to rocky volcanic scree, rocky slopes, in alpine • Jones and Fertig 1999 tundra, alpine meadows, on turf mats, and in open Douglas-fir forests. The soils or • Mills and Fertig 1996 substrates are derived from andesite volcanic rock. The elevation ranges from 7200 to • Rosenthal 1998, 1999 13000 feet. Its habitat is discontinuous across the landscape. • University of Wyoming 1998

• Welp et al. 2000 Confidence in Rank High • Wilken and Hartman 1991 The ssp. robruthii is endemic to the Absaroka Mountains of Wyoming (Park County). • Fertig et al. 1994 2 A Distribution • Mills and Fertig 1996 outside R2 • Wilken and Hartman 1991 • WYNDD 2002 Confidence in Rank High Dispersal vectors are unknown. • - 3 D Dispersal Capability

Confidence in Rank High Kirkpatrick’s Ipomopsis is known from 16 occurrences in Wyoming, all of which have • Fertig 1995, 1997, 1998, 2000 4 BD been discovered or relocated since 1981 (most recently in 1997). All known Abundance in • Fertig et al. 1994 R2 populations are on the Shoshone National Forest. Census data are lacking for nearly • Jones and Fertig 1999 all known occurrences. One population surveyed in 1996 was found to contain 500- • Mills and Fertig 1996 650 in an area of 10 acres. This taxon is ranked “S2” in Wyoming. • Rosenthal 1998, 1999 • Welp et al. 2000 Confidence in Rank High • WYNDD 2002 Although no trend data are available, this species is presumed to be stable due to the • Fertig 1995, 1997, 1998, 2000 5 BD low threats in its rugged, inaccessible habitat. Population • Jones and Fertig 1999 Trend in R2 • Mills and Fertig 1996

Confidence in Rank High

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Species: Ipomopsis spicata ssp. robruthii / Kirkpatrick’s Ipomopsis (I. spicata var. robruthiorum)

Criteria Rank Rationale Literature Citations Not known. • - 6 D Habitat Trend in R2

Confidence in Rank High Threats appear to be minimal due to the rugged habitat. Some populations could be • Fertig 1995, 1997, 1998, 2000 7 BD impacted by sheep grazing or trampling. All known occurrences are on Shoshone Habitat • Jones and Fertig 1999 Vulnerability National Forest. Most of the known populations are on lands managed as wilderness, • Mills and Fertig 1996 or although a few are on lands managed for multiple use. • Rosenthal 1998, 1999 Modification • Welp et al. 2000 Confidence in Rank High Kirkpatrick’s Ipomopsis is a perennial forb. Flowering and fruiting occur from July • Fertig et al. 1994 8 D through August. Life History • Wilken and Hartman 1991 and Demographics Additional information on the species, including life history stages, population structure, longevity, mortality, and seed biology, are not available.

Confidence in Rank High Initial Evaluator(s): Date: March 30, 2002 Joy Handley, Bonnie Heidel and Scott Laursen

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

Fertig, W. 1995. Report on the potential vulnerability of Shoshone National Forest Candidate and Sensitive species to livestock grazing. Unpublished report prepared for Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, 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. 2000. Rare 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., C. Refsdal, and J. Whipple. 1994. Wyoming Rare Plant Field Guide. Wyoming Rare Plant Technical Committee, Cheyenne Wyoming.

Jones, G.P. and W. Fertig. 1999. Ecological evaluation of the potential Grizzly 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.

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.

Rosenthal, D.M. 1998. Report on a general floristic survey of vascular plants in selected areas of Shoshone National Forest. Report prepared by the Rocky Mountain Herbarium, University of Wyoming, Laramie, WY.

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Rosenthal, D.M. 1999. A floristic survey of selected areas in Shoshone National Forest, Wyoming. Master's Thesis, Department of Botany, University of Wyoming, Laramie, WY.

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.

Wilken, D. and R. L. Hartman. 1991. A Revision of the Ipomopsis spicata complex (). Systematic Botany 16: 143-161.

Wyoming Natural Diversity Database. 2002. Ongoing documentation of sensitive species distribution, biology, status, and references for the state of Wyoming. University of Wyoming, Laramie.

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