08 June 2010.
South Dakota, United States
Locality: ~250 yards east-northeast of the bas of Limestone Butte, Buffalo Gap National Grassland, NE 1/4 of NW 1/4 of Section 21, T10S, R8E, Fall River County.
Coordinates: 43.1732, -103.1798
(Map it)
Elevation: 1026m.
Environment description: Ephemeral pond in open "badland" area on mud. Deep, heavy clay soils overlain with cobble and rock. Associated with Eriogonum pauciflorum and Xanthisma grindelioides.
Number of plants sampled: 50
Comment: Plants beginning to senesce at time of collection.
Collector(s):