Petalonyx thurberi subsp. thurberi

PLANT: Herbage harshly short pubescent; representing the larger extremes for most characters of the species, except for the mostly narrower leaves of its branches. NOTES: See also parent taxon for further description. Open sandy to gravelly areas, Sonoran and Mohave Deserts, often in washes (Map 2D): La Paz, Maricopa, Mohave, Pima, Pinal, Yavapai, Yuma cos.; below 1500 m (5000 ft); Apr-Nov; s CA, s NV; Baja C, Son., Mex. REFERENCES: Christy, Charlotte M. 1998. Loasaceae. J. Ariz. - Nev. Acad. Sci. 30(2): 96.