Collected
14 May 2007.
United States
Elevation: 1134m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Semi-desert grassland. Associated with Prosopis velutina, Acacia greggii, Gutierrezia sp., Opuntia engelmannii, O. whipplei, Pleruaphis mutica, Hordeum pusillum, Erodium cicutarium.
Number of plants sampled: 4000
Comment: Collector:Gray, M.; Johnson, J. Geology:Igneous basalt. Soil:Clay-silt Slope:0 All