ATTACHMENT SS2

REGION 2 SENSITIVE SPECIES EVALUATION FORM

Species: Palafoxia rosea (Bush) Cory var. macrolepis (Rydb.) B.L. Turner & M.I. Morris rose palafoxia SYNONYM: Palafoxia macrolepis (Rydb.) Cory [Harrington 1954]

Criteria Rank Rationale Literature Citations • Anderson 1950 Converse and Goshen Cos, WY; se-most (Baca and Las Animas Cos) CO; and s-central KS. KS population • Barkley 1991 is a minor disjunct; WY population is disjunct by several hundred miles. [Vouchers at KANU from Clark and • Clark 1996 1 Comanche Cos, KS.] • Freeman in prep. Distribution A Status: G5T3T4; KS S1; WY S1. • Hartman 1997 within R2 • Shaw et al. 1989 Confidence in Rank High or Medium or Low • Turner & Morris 1976 • Weber & Wittman 2001 se WY, se-most CO, and s-central KS; thence s through w OK, panhandle of TX and e-most NM; thence throughout central TX 2 • Turner & Morris 1976 Distribution C outside R2 Confidence in Rank High or Medium or Low Evaluator was unable to find any information about species’ dispersal capability. Species appears to set rather abundant seed. However, individual seeds are equipped with a small crown-like pappus and it doesn’t 3 appear very likely that they are dispersed over long distances to suitable habitat.

Dispersal D Capability Confidence in Rank High or Medium or Low Species is known only from several isolated population in CO, KS, and WY. It is possible that these populations may face local extinction, leading to imperilment of the species in R2. 4

Abundance in A R2 Confidence in Rank High or Medium or Low Evaluator was unable to find any information about population trends within R2.

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Population D Trend in R2 Confidence in Rank High or Medium or Low Observation of herbarium specimen labels at KANU reveals that species is found on gravelly or sandy soil in mixed grass prairie or along river beds. Evaluator is unaware of species’ habitat in WY, however CO/KS 6 habitat is probably largely stable.

Habitat Trend B in R2 Confidence in Rank High or Medium or Low

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Species: Palafoxia rosea (Bush) Cory var. macrolepis (Rydb.) B.L. Turner & M.I. Morris rose palafoxia SYNONYM: Palafoxia macrolepis (Rydb.) Cory [Harrington 1954]

Criteria Rank Rationale Literature Citations Evaluator was unable to find any information about habitat requirements. If species is similar in its habitat 7 requirements to congener P. sphacelata, it requires moderate amounts of disurbance, perhaps benefitting Habitat from limited grazing by livestock.

Vulnerability D or Modification Confidence in Rank High or Medium or Low Annual forb. Flowering and fruiting mid June through late September. Evaluator was unable to find any other life history information. 8 Life History B and Demographics Confidence in Rank High or Medium or Low Evaluator: Caleb A. Morse, R.L. McGregor Herbarium (KANU), University of Kansas Campus West, 2045 Constant Ave, Lawrence KS 66047 Date: 01/16/02

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

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

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

REFERENCES

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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Anderson, J.M. 1950. Annotated List of the Vascular Flora of Baca County, Colorado. M.A. Thesis, University of Colorado. 39 pp. Barkley, T.M. 1991. Asteraceae, pp. 838–1021 in Great Plains Flora Association, Flora of the Great Plains. University Press of Kansas. Lawrence, Kansas. vii + 1402 pp. Clark, D.A. 1996. A floristic survey of the Mesa de Maya Region, Las Animas county, Colorado. Nat. Hist. Invent. Colorado 17: 1–44. Freeman, C.C. (in prep.) Checklist of the Vascular Plants of the Grassland Biome of Central North America. Harrington, H.D. 1954. Manual of the Plants of Colorado. Sage Books. Denver, Colorado. x + 666 pp. Hartman, R.L. 1997. Atlas of the Vascular Plants of Wyoming. Published by the author at Rocky Mountain Herbarium, University of Wyoming. Laramie, Wyoming. [unpaginated] Shaw, R.B., S.L. Anderson, K.A. Schulz and V.E. Diersin. 1989. Floral inventory for the USA army pinon canyon maneuver site, Colorado (USA). Phytologia 67: 1–42. Turner, B.L. and M.I. Morris. 1976. Systematics of Palafoxia (Asteraceae: Helenieae). Rhodora 78: 567–628. Weber, W.A. and R.C. Wittman. 2001. Colorado Flora: Eastern Slope (3rd Edition). University Press of Colorado. Boulder, Colorado. xl + 521 pp.

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