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36b. Packera neomexicana (A. Gray) W. A. Weber & Á. Löve var. neomexicana
New Mexico groundsel
Senecio appendiculatus Greenman; S. encelia Greene; S. eurypterus Greenman; S. oreophilus Greenman; S. oresbius Greenman
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.
Flowering early Apr–late Jun. Rocky soils, oak-conifer or chaparral associations; 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.
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