11 August 1989.
Carbon County, Montana, United States
Locality: Montana State Plane coordinate system. Section: 18, Township: 3S, Range: 23E
Elevation: 1118m.
Habitat: Wild Habitat
Environment description: On a sandstone outcrop, 4% northwest slope, 381 mm (15 in) annual precipitation.
Collector(s):
1993.
Montana, United States
Comment: PMC increase.
Collector(s):