18 June 2013.
Wyoming, United States
Locality: 12 hectare area, north of County Road 8, 0.5 kilometer west of Route 28.
Coordinates: 41.9239, -109.7783
(Map it)
Elevation: 1936m.
Environment description: Non-weedy wild population. Rocky ground between stabilized sand dunes and in dry stream beds.
Number of plants sampled: 300
Comment: Plants locally abundant. Estimated population size of 2,000. Seed maturity was good, but the plants were still growing at time of collection. Led to this location by the online University of Wyoming, Rocky Mountain Herbarium information about the collection in 1994 of number 45121 by Cramer and Refsdal.
Collector(s):