Taprooted Fleabane
ATTACHMENT SS2 REGION 2 SENSITIVE SPECIES EVALUATION FORM Species: Erigeron radicatus / Taprooted Fleabane Criteria Rank Rationale Literature Citations Taprooted Fleabane occurs in the Beartooth, Absaroka, and northeastern Wind River • Dorn 2001 1 A ranges in Fremont and Park counties on the Shoshone National Forest. It is not known Distribution • Fertig 1997, 1998, 2000 within R2 from any other Region 2 state. • Jones and Fertig 1999a, b • Mills and Fertig 1996a, b, 2000 In Wyoming, this species is found at and above timberline in krummholz, fellfields, and • Scott 1997 outcrops on ridges, slopes, and summits. It often grows in soils derived from • University of Wyoming 1998 calcareous material. Elevational ranges are from 7,820 to 11,600 feet. Taprooted • Welp et al. 2000 Fleabane reaches the southern edge of its range in Wyoming. Confidence in Rank High Taprooted Fleabane is a Northern Rocky Mountains species ranging from British • Cronquist 1955 2 B Colombia and Alberta, south to east central Idaho, southwestern Montana, and Distribution • Fertig 1992a, b outside R2 western Wyoming. Outside of Region 2 in Wyoming it is known from the Wyoming and • Fertig and Jones 1994 northern Wind River mountains on the Bridger-Teton National Forest in Sublette • Fertig et al. 1991 County. • Moseley 1989 Confidence in Rank High It may be inferred that the bristly pappus is appropriate for wind dispersal across • Cronquist 1955 3 D unsuitable habitat. Dispersal • Mills and Fertig 2000 Capability • Scott 1997 Confidence in Rank High Taprooted Fleabane is known from 8 occurrences in the state, 6 of which have been • Fertig 1992a, b, 1997, 1998, 4 A discovered or relocated since 1990 (most recently in 1998).
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