Gamochaeta ustulata

Gamochaeta ustulata, commonly named featherweed or Pacific cudweed, is a North American species of flowering plant in the family Asteraceae. It is native to the western United States and southwestern Canada, in British Columbia, Washington, Oregon, and California. It is found primarily on seaside hills and in the Coast Ranges, with additional populations inland.Guy L. Nesom 2004. New distribution records for Gamochaeta (Asteraceae: Gnaphalieae) in the United States. Sida 21(2): 1175–1185.Nesom, Guy L. 2004. Sida 21(2): 717–741 in English with Spanish summary, description on pages 724–725, county-level distribution map on page 732Biota of North America Program 2014 county distribution mapCalflora taxon report, University of California, Gamochaeta ustulata (Nutt.) Nesom, featherweed Gamochaeta ustulata is an annual or perennial herb up to 40 cm tall. Leaves are up to 5 cm long, green on the top but appearing white on the underside because of many woolly hairs. The plant forms many small flower heads in elongated arrays. Each head contains 4–6 yellow disc flowers but no ray flowers.Flora of North America, Gamochaeta ustulata (Nuttall) Holub, 1976. Featherweed, Pacific cudweed

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