08 June 2010.
Nebraska, United States
Locality: ~0.5 mile northeast of Sugarloaf Butte, Oglala National Grassland, SW 1/4 of SE 1/4 of Section 22, T34N, R53W, Sioux County.
Coordinates: 42.9012, -103.5521
(Map it)
Elevation: 1201m.
Environment description: Ephemeral pond in open "badland" area on muddy banks of pond. Deep, heavy clay soils. Associated with Eriogonum pauciflorum and Xanthisma grindelioides.
Number of plants sampled: 50
Comment: Plants beginning to senesce at time of collection.
Collector(s):