20 September 2008.
Arizona, United States
Locality: Graham County. Near Safford. Coronado National Forest. Pinaleno mts. On 366 about 33.9 mi from 191 jct and 1.3 mi beyond turnoff to Riggs Lake. Along Clark Peak trail 301 where it skirts peak just W of terminus of gravel Swift Trail.
Coordinates: 32.7175, -109.9789
(Map it)
Elevation: 2728m.
Habitat: Wild Habitat
Environment description: Open steep NW-facing slopes in moist organic soil among scrub oak and raspberries and granite boulders.
Comment: Recollected from this exact site in 2011 resulting in three new collections - PI 664001, PI 664002 and PI 664003. For additional collecting details see the
Potato Collecting Expedition Log
Collector(s):