21 September 2010.
Arizona, United States
Locality: North side of FS 62 (Box Canyon Road), 30 meters east of the Arizona Trail, Nogales Ranger District of the Coronado National Forest, Pima County.
Coordinates: 31.7926, -110.7468
(Map it)
Elevation: 1580m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Savannah vegetation. Under juniper and oak trees.
Number of plants sampled: 50
Comment: Population size of about 100 plants. No flowers were present and seeds were shattering.
Collector(s):