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1a. Amphipappus fremontii Torrey & A. Gray var. fremontii
Young twigs, peduncles, and leaves glabrous. 2n = 18.
Flowering Mar–May. Rocky or sandy soils, ravines, washes, slopes, rock outcrops, canyon walls, cliff faces, usually with other shrubs, especially Ambrosia, Yucca, Ephedra, Atriplex; (100–)500–1100 m; Calif., Nev.
Occasional, sparsely hirtellous plants may reflect genetic influence of var. spinosus.
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