Epilobium brachycarpum

(Tall Annual Willowherb)

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Epilobium brachycarpum, CR 16 west of Yampa, Routt Co. 0323

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Epilobium brachycarpum, CR 16 west of Yampa, Routt Co. 0332

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Epilobium brachycarpum, Gore Pass, Grand Co. 1972

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Epilobium brachycarpum, Gore Pass, Grand Co. 1972

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Epilobium brachycarpum, Gore Pass, Grand Co. 1983

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Epilobium brachycarpum, Gore Pass, Grand Co. 1981

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Epilobium brachycarpum, CR 16 west of Yampa, Routt Co. 0340

Scientific Name Epilobium brachycarpum USDA PLANTS Symbol EPBR3
Common Name Tall Annual Willowherb, Panicled Willowherb ITIS Taxonomic Serial No. 27288
Family Onagraceae (Evening Primrose) SEINet
Reference
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Description Life zones and habitat: Foothills and montane (5500 to 9700 ft.); roadsides, meadows, woodlands, disturbed areas.
Plant: Erect annual with branching stems, 8 to 40 inches tall; smooth below and glandular (sticky) above.
Leaves: Alternate along most of the stem and branches, opposite near the base, petiolate, narrowly lanceolate to linear, margins mostly entire or toothed; leaves of the main stem 1-1/4 to 2-3/4 inches long, much shorter on side branches.
Inflorescence: A few funnel-shaped rose to pale pink flowers less than 3/4-inch long in lax racemes at the ends of the branches; petals less than 1/3-inch long and deeply-notched at the tips; linear bracts, sometimes purplish; 8 stamens.
Bloom Period: June to August.
References: "Flora of Colorado" by Jennifer Ackerfield, SEINet and Burke Herbarium.
BONAP Distribution Map


Map Color Key
Colorado Status:
Native

© Tom Lebsack 2022

Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County