Rep. U.S. Geogr. Surv., Wheeler, 272. 1878
Illustrator: Bee F. Gunn
Phenology: Flowering mostly late May–Jun.
Habitat: Open, rocky slopes
Elevation: 1200–1900 m
Ariz., N.Mex., Tex., Mexico (Chihuahua, Sonora).
Morphologically, Dasylirion wheeleri is fairly uniform within its range in the United States, with some minor variation in fruit size and receptacle length.