USA, Arizona, Yavapai County, Agua Fria National Monument, at base of southern foot hills below Black Mesa.
34.084983 -112.1304
34d 5.099m N; 112d 7.824m W
628 meters
2060ft.
Sonoran Desert-scrub, Arizona Uplands
Echinocereus engelmannii, Cylindropuntia fulgida var. mammilata, C. acanthocarpa, Larrea tridentata, Ambrosia deltoidea, Parkinsonia microphylla, Encelia farinosa, Opuntia engelmannii, Carnegiea gigantea.
Cactus flowers measuremtns in mm: 93l x 95 w; outer tepals light pink with olive green midstripe; inner tepals rose pink; dark green stigma with 14 lobes; style white; filaments and anthers cream. Scattered.