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Indian hemp dogbane

Also known as: prairie dogbane

Apocynum cannabinum L.

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Indian hemp dogbane
Indian hemp dogbane leaves
Indian hemp dogbane fruit
Indian hemp dogbane
Indian hemp dogbane fruit
Indian hemp dogbane
Indian hemp dogbane flowers

Morphology

Stem
Erect, reddish brown, branched above, mostly glabrous, often waxy.
Leaves
Opposite, simple, short-stalked or sessile, ascending to erect, lanceolate-oblong to ovate-oblong, 3/4 to 6 inches long, 1/4 to 2 1/2 inches wide, glabrous above, sparsely hairy and pale below; margins entire; tips pointed or rounded, terminating in short, flexible points.
Inflorescence
Cymes, dense, terminal.
Flower
Small, erect or drooping; calyx lobes 5, lanceolate, glabrous; corollas bell-shaped, white to greenish white; petals 5, less than 1/5 inch long, united; stamens 5.
Fruit
Pods, slender, 2 to 8 inches long, straight or curved, borne in pairs, drooping or spreading; seeds numerous, reddish brown, tufted with silky hairs at tips.

Ecology

Habitat
Open disturbed sites, waste areas, stream banks, pond edges, and moist lowlands, most abundant on sandy or gravelly soils.
Distribution
Statewide

Practical Information

Toxicity
Indian hemp dogbane is highly poisonous, but livestock rarely consume it because the bitter, milky sap makes it very unpalatable.
Uses
Native Americans used the stem fibers to make thread, cord, bowstrings, and fishing nets. Native Americans and pioneers utilized parts of the plant to create laxatives, cardiac stimulants, respiratory aids, cough medicines, and to make a tea to treat internal parasites.

Additional Notes

Comments

Rhizomatous - forming colonies that can seriously affect crop yields. The common name "dogbane" is in reference to the plant being poisonous to dogs.

Quick Facts
Plant Type
Wildflower
Family
Apocynaceae - Dogbane Family
Life Span
Perennial
Height
8-40 inches
Origin
Native
Last Updated
2023-08-31
Color Groups
White, Green & Greenish White Wildflowers
Flowering Period
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Blooms: June, July, August