22 August 1989.
Stillwater County, Montana, United States
Locality: Montana State Plane coordinate system. Section: 29, Township: 1N, Range: 18E
Coordinates: 45.8000, -109.2333
(Map it)
Elevation: 1347m.
Habitat: Wild Habitat
Environment description: Single plant growing in the edge of a common fallow field. On a 6% south slope. Annual percipitation of 330 mm (12-14 in).
Number of plants sampled: 1
Collector(s):
1993.
Montana, United States
Comment: PMC increase.
Collector(s):