Collected
21 September 2005.
Arizona, United States
Elevation: 2133m.
Georeference protocol: Lat/lon determined by GPS
Number of plants sampled: 800
Comment: Collected by Bureau of Land Management, USA. Ephemeral Riparian drainage. Ponderosa pine & Quercus gambelii overstory. Associated with Robina, Neomexicana, Toxicodendron rydbergii, Apocynum cannabinum, Geranium richardsonii.