Bigflower agoseris (Agoseris grandiflora)

Abstract

Bigflower agoseris occurs in locations west of central Utah. It occurs in southern British Columbia, Washington, Oregon, California, Nevada, Utah, Idaho, and Montana, and is most common in those states bordering the Pacific Ocean (Baird 2006). Variety grandiflora is most common east of the Cascade Mountains and southward on both the east and west side of the Sierra Nevada Mountains to southern California (Fig. 1). Variety leptophylla is most common west of the Cascade Mountains from Vancouver Island through Puget Sound and the Willamette Valley to the Siskiyou-Klamath Mountains of southwestern Oregon and northwestern California. Variety leptophylla also occurs sporadically in mesic forests on the eastern slopes of the Cascade Mountains with disjunct populations in the Selkirk- Clearwater Mountains of British Columbia and northern Idaho (Baird 2004, 2006).

Parent Publication

• Western forbs: Biology, ecology, and use in restoration - Project Overview and Acknowledgements

Citation

Gucker, Corey L.; Shaw, Nancy L. 2023. Bigflower agoseris (Agoseris grandiflora). In: Gucker, C.L.; Shaw, N.L., eds. Western forbs: Biology, ecology, and use in restoration. Reno, NV: Great Basin Fire Science Exchange. Online: https://westernforbs.org/species/bigflower-agoseris-agoseris-grandiflora/.