Agave parryi var. parryi
Phenology: Flowering mid spring–mid summer.
Habitat: Gravelly to rocky places in grasslands, desert scrub, chaparral, pinyon-juniper, and oak woodlands
Elevation: 1200–2800 m
Ariz., N.Mex., nw Mexico.
B. Ullrich (1992) showed that the earlier name Agave scabra Salm-Dyck was based on a collection attributable to A. parryi, and that the correct name for what H. S. Gentry (1982) called A. scabra is A. asperrima. Fortunately, the Salm-Dyck name is illegitimate, being a later homonym, and so A. parryi remains the correct one. Variety parryi hybridizes with A. chrysantha and A. schottii var. schottii in Arizona.