Sarcostemma cynanchoides subsp. hartwegii (Vail) R. Holm
Asclepiadaceae
K. Landry
9
2012-03-31
S. Silva, T. Henderson
United States, Arizona, Pinal, White Canyon Wilderness Area - Bureau of Land Management; 0.75 mi N of White Canyon and Walnut Canyon confluence, within White Canyon; approximately 3 mi N of Gila River.