Zigadenus venenosus S. Watson var. gramineus (Rydb.) Walsh ex M. Peck
[= Toxicoscordion venenosum var. gramineum]
Annotated by Gordon S. Whitehead, 29 Jun 1977. Sources: FPNW.

Idaho: Fremont County: Site 17. Targhee National Forest. Along Henry’s Lake Outlet upstream from the bridge on the road from Island Park Lodge to Big Springs. Some of the collections may have been made in sections 17,18, 19, and 21, but they were all made in or in the margins of, Henry’s Lake Flats; Elevation 1950m. Elev. 1950 m.
44.52329° N, 111.2870235° W; T14N R44E S20 SW 1/4
Datum: WGS 84. Uncertainty: 500 meters. Coordinate Source: BioGeomancer.
Dry open sagebrush communities. Associated with Artemisia tridentata, Erigeron glabellus, and Festuca idahoensis; or with Artemisia tridentata, Sedum stenopetalum, and Cerastium arvense. This plant is poisonous and can be confused with edible plants in the family, especially when not in flower. Voucher: Whitehead, G.S. 1983. M.S., Idaho State U. Flora of the Island Park Geothermal Study Area. Duplicates to: IDS, RM. Phenology: Flowers.

Gordon S. Whitehead 486a, 6/29/1977-7/4/1977
IDS, Accession: 2012.012, Barcode: IDS0021365