Asclepias viridiflora Raf.
Annotated by James P. Riser II, 26 Apr 2004.

Montana: Custer County: Ismay, Custer. Elev. 4000 ft.
46.4986166° N, 104.7935725° W
Coordinate Source: USGS-website.
In vale. Amount of moisture: dry. Amount of shade: prairie. Kind of soil: gravel. Height of plant: 5 inches. Exposure: exposed to wind. Color of flower: green with white wings. Not irrigated. Data Sheet
Flora of the State of Montana
Biological Project of the NYA
National Youth Administration
County not listed on specimen sheet; Custer County, USGS
Asclepiadaceae
Common name: Milkweed- silk weed- Butterfly weed. Phenology: Flowers.

Helen Nerenz 236, Jun 18, 1936
MONTU, Accession: 27281