Epilobium lactiflorum

(Whiteflower Willowherb)


Epilobium lactiflorum, Mayflower Gulch, Summit Co. 6927

Scientific Name Epilobium lactiflorum (Epilopium hornemannii var. lactiflorum) USDA PLANTS Symbol EPLA3
Common Name Whiteflower Willowherb, Milkflower Willowherb ITIS Taxonomic Serial No. 27309
Family Onagraceae (Evening Primrose) Jepson eFlora
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Description Life zones and habitat: Montane to alpine (8000 to 12000 ft.); moist areas along streambanks and in meadows.
Plant: Erect, leafy perennial 4 to 20 inches tall.
Leaves: Opposite, narrowly-ovate to lanceolate stem leaves, usually stalkless, 3/4 to 2-1/8 inches long; edges smooth or with a few small teeth.
Inflorescence: Small white flowers on stalks 1/4 to 2 inches long, each with 4 notched petals and club-like stigma.
Bloom Period: June to August.
References: E. hornemannii var. lactiflorum in "Flora of Colorado" by Jennifer Ackerfield, Jepson eFlora and E-Flora BC.
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Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County