Collected
13 September 2002.
Idaho, United States
Elevation: 700m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Pond edge. Associated with Typha latifolia, Helianthus annuus, Kochia scoparia, Melilotus alba, Setaria viridis.
Number of plants sampled: 160
Comment: Collectors: Geertson, V. : Bureau of Land Management, USA.; Buckingham, R. : SCA Slope: 5-15% Flat, Soil: Silt-loam ,Area sampled: 5000-10,000 sq.m.