Chamerion angustifolium (L.) Holub
Family: Onagraceae
fireweed, great willow-herb
Chamerion angustifolium image
Merel R. Black  
Etymology: Epilobium: from 2 Greek words epi, "upon," and lobos, "a pod or capsule," as the flower and capsule appear together, the corolla being borne on the end of the ovary
Plants: erect, perennial, 2'-6' tall forb; stems usually single
Leaves: many, crowded, alternate, lance-like, stalkless
Flowers: pink to purple, 4-parted, 3/4"-1 1/2" wide, stigma with 4 branches, petals not notched; inflorescence a long, terminal cluster (raceme) of stalked flowers; blooms June-Aug.
Fruits: capsule, seeds with tufts of hair at the top
Habitat: moist; forests, clearings
Conservation Status: Native