Packera neomexicana var. neomexicana
Annuals, biennials, or perennials, usually lanate or woolly, rarely glabrate, taprooted. Stems 1. Basal leaves: blades ovate to obovate, margins deeply dentate or dissected. Cauline leaves conspicuous. 2n = 46, 92.
Phenology: Flowering early Apr–late Jun.
Habitat: Rocky soils, oak-conifer or chaparral associations
Elevation: 1200–2400 m
Ariz., N.Mex., Mexico (Chihuahua, Coahuila, Sonora).
Variety neomexicana is known from throughout Arizona and in southern and western New Mexico. Its persistent, heavy tomentum and well-developed cauline leaves make it easy to recognize. If type of Senecio thurberi A. Gray belongs within circumscription of Packera neomexicana (see T. M. Barkley 1978), a new combination in Packera will be necessary.