Collected
16 October 2002.
Colorado, United States
Elevation: 2226m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Pasture/roadside along creek. Associated with pasture grasses, Aster sp., Senecio sp., Bromus inermis.
Number of plants sampled: 400
Comment: Collectors: Koblitz, B. : Bureau of Land Management, USA.; Dawson, C. : Bureau of Land Management, USA. Slope: 0-5% W, Soil: Clay ,Area sampled: 500-1000 sq.m.