STEM: Stem and pedicel hairs crisped or straight, appressed or ascending; longer stem hairs 0.3-0.8 mm long.

NOTES: See the parent taxon for further description. Desert scrub, oak, pine, or oak-pine woodland: Gila, Graham, (La Paz-), Maricopa, Mohave, Pima, Pinal, Santa Cruz, Yavapai, Yuma cos.; 750-2000 m (2200-6000 ft); Feb-Oct; w TX to Baja C. Sur, Mex.; Guatemala.