Mexico, Sonora, Cananea, Ajos Nuevos Station, Cañón de Evans, 29.9 km (by air) E of Cananea, Sierra de los Ajos, Ajos-Bavispe Reserva Forestal Nacional y Refugio de Fauna Silvestre.
30.972778 -109.960833
30°58'22"N -109°57'39"W
1905 meters
1905 m
Riparian deciduous forest in rocky stream canyon; oak woodland and pine-oak forest on slopes.
Locally common herbaceous perennial; flowers white.