Flora of the Southeastern United States
2022 Edition


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Chamaenerion angustifolium (Linnaeus) Scopoli ssp. circumvagum (Mosquin) Moldenke. Great Willow-herb, Fireweed. Phen: Jun-Sep. Hab: Grassy balds, roadsides, montane fields, burned areas, disturbed areas. Dist: Circumboreal, extending south in North America to NJ, montane w. NC and ne. TN, n. IN, MN, SD, AZ, NM, and CA.

Origin/Endemic status: Native

Syn: = FNA10, K3, K4, NY; = Chamaerion angustifolium ssp. circumvagum – Tn, misspelled; = Chamerion angustifolium ssp. circumvagum – GrPl, K1, NE, Wagner, Hoch, & Raven (2007); = Chamerion platyphyllum – Va; = Epilobium angustifolium ssp. circumvagum – Mosquin (1966); = Epilobium angustifolium var. canescens – C; = Epilobium angustifolium var. platyphyllum – F; < Chamaenerion angustifolium – S; < Chamerion angustifolium – Il, Mi, Holub (1972); < Epilobium angustifolium – G, GW2, Pa, RAB, W, WV; >< Epilobium angustifolium var. angustifolium – Munz (1965)

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image of plant© Alan Cressler: epilobium angustifolium, forest service road 1130, mt. baker-snoqualmie national forest, whatcom county, washington 1 by Alan Cressler source
image of plant© J.W. Hardin
image of plant© J.W. Hardin