26 July 1991.
Montana, United States
Locality: Sweetgrass County. Along Highway 191 north of Big Timber about 24 miles and south of Harlowtown about 21 miles, north of Melville junction.
Coordinates: 46.1667, -109.8667
(Map it)
Elevation: 0m.
Environment description: Grassland with very large lupin population on both sides of highway.
Number of plants sampled: 0
Collector(s):