United States, Arizona, La Paz, Harquahala Mountain, NNE-facing slope, 1.2km NW of the summit, 22.5km SW of Aguila, 60km WSW of Wickenburg.; Harquahala Mountain 7.5
33.8197 -113.3604
12 281540E 3744665N
[Both coordinates and UTM given on label.]
[Datum used for UTM on label is NAD83]
1102 meters
3616ft.
Among boulders and outcroppings of coarse-grained granite.
Locally several individuals and at last two with young flower buds. Stem potted in greenhouse, Chino Valley, Arizona; pollen-fertile individual; flower photographed and collected 24 March 2016; n=22 during meiosis of microgametogenesis.