Epilobium ciliatum Raf.
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Onagraceae
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Scientific Name
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Description
Species Description - Perennating by persistent basal rosettes, without turions or long rhizomes; stems erect, mostly solitary, freely branched when well developed, to 1 or even 1.5 m, puberulent at least above, usually in decurrent lines, sometimes even sericeous, and often also glandular in the infl; lvs opposite, or the upper offset or alternate, lanceolate or lance-ovate, mostly 3–12 × 0.5–3.5 cm, serrulate, the teeth somewhat remote (usually 2–5 per cm of margin) or small and obscure; fls numerous; sep 2–6 mm, not projecting in bud; pet 2–6 mm, white (pink), notched; fr 4–10 cm, on a ± evident pedicel 2–15+ mm; seeds numerous, ca 1 mm, broadly short-beaked, longitudinally finely ribbed (evidently so at 20×); coma nearly white; 2n=36. Wet places, often in unstable habitats, variable and often somewhat weedy; Nf. and Lab. to Alas., s. to Va., w. N.C., Ind., Io., Calif., Tex., Mex., and C. Amer.; Chile and Arg. June–Aug. Ours is the widespread var. ciliatum. (E. adenocaulon; E. americanum; E. perplexans)
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Common Names
American willow-herb