Rafael Routson, Phil Jenkins, and Steve McLaughlin
USA, Arizona, Santa Cruz County, Canelo Hills, 1.5 km WNW of Lookour Knoll; 42km ENE of Nogales; O'Donnell Canyon 7.5' USGS topographic quadrangle; 12R E05 42 345 N34 N34 83 695 [NAD27, CONUS].
Common perennial with terete leaves; petals white, tinged pink toward midrib near apex; ovary pale green; filaments and style white or very slightly tinged pink; anthers dark yellow, stigma white, slightly tinged yellow; sepals purple-tipped.