Aristolochia watsonii, or Southwestern Pipevine, is a small native groundcover that grows up to a half foot tall and is the host of the pipevine swallowtail butterfly. It is found in gravely soils along rocks in drier areas, between 2000-4500 ft. Rarely found in cultivation, has carrot-like tap root. Prefers full sun to part shade with low to medium water requirements.
Southwestern Pipevine, Aristolochia watsonii