The Genus Chamerion East of the Cascade Mts.
1. Fireweed: Chamerion angustifolium (Epilobium angustifolium) - Plants over 50 cm high. Leaves often over 6 cm long. Floral bracts linear and much smaller than the leaves. Inflorescence a raceme of at least 15 flowers. Plants rhizomatous.
2. Broadleaf Willowherb: Chamerion latifolium (Epilobium latifolium) - Plants less than 50 cm high. Leaves usually less than 6 cm long. Floral bracts lanceolate and leaf-like. Inflorescence a raceme of less than 14 flowers. Plants are non-rhizomatous.