28 September 2008.
South Dakota, United States
Locality: Buffalo Gap National Grassland, ~5 air miles west-southwest of Edgemont, 1 mile northwest of South Dakota Highway 18, Section 1, T9S, R1E, Fall River County.
Coordinates: 43.2961, -103.9461
(Map it)
Elevation: 1182m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Muddy edge of reservoir in Artemisia tridentata shrub steppe. Region of old river terrace gravels, reservoir at bottom of large draw. Alkaline clay soils.
Collector(s):