Collected
20 December 2007.
United States
Elevation: 995m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Semi-desert grassland. Associated with Prosopis velutina, Acacia greggii, Celtis pallida, Baccharis sarothroides, Opuntia engelmannii, Pleuraphis mutica, Hilaria belangeri, Leptochloa panicea ssp. brachiata, Ambrosia confertiflora.
Number of plants sampled: 200
Comment: Collector:Gray, M.; Johnson, J. Geology:Igneous basalt. Soil:Clay Slope:0 All