Asclepias verticillata L.
Annotated by James P. Riser II, 26 Apr 2004.

Montana: Custer County: Fossil Spr.; Pasture J, Forest USRL Exp. Sta. Elev. 2600 ft.
46.2882° N, 105.9771° W; T6N R46E S9
Coordinate Source: TRS-website.
Slope: S.
Soil: Rocky
Distribution: Bottom of draw
Abundance: Few plants Duplicate. U.S.D.A. Herbarium of the Forest Service, No. 7743.
No date on Woolfolk's label; assumed to be the same as the other specimen of the same collector number. See Sp 28746. Phenology: Flowers.

E. J. Woolfolk W-62, Jul 7, 1937
MONTU, Accession: 61357