Asclepias asperula is found beyond the borderlands around the Southwestern United States and into Northern Mexico. My explanation of the common name antelope horns...
There is only one species of Marah in Arizona, but there seven species in North America and all in are found in the west...
Phemeranthus aurantiacus, the former Talinum aurantiacum, is now in Talinaceae, the flameflower family, “a family of two genera and 28 species.” There’s more; the...