Supriya Ghosh (Editor)

Asclepias sullivantii

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Kingdom  Plantae
Family  Asclepiadaceae
Rank  Species
Order  Gentianales
Genus  Asclepias
Asclepias sullivantii wwwspencenurserycomUploadimagesplantprofile
Similar  Asclepias purpurascens, Asclepias verticillata, Asclepias viridiflora, Asclepias exaltata, Asclepias viridis

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Asclepias sullivantii is a species of flowering plant in the milkweed genus, Asclepias. Common names include prairie milkweed, Sullivant's milkweed, and smooth milkweed. It is native to North America, where it occurs in the central United States and Ontario in Canada.


Asclepias sullivantii Smooth Milkweed Asclepias sullivantii Guide to Kansas Plants


Asclepias sullivantii Prairie Milkweed Asclepias sullivantii

This is a perennial herb growing from deep rhizomes. The stem is 40 centimeters to just over one meter tall. The ovate, pointed leaves are oppositely arranged. The blades have wavy margins, reddish midveins, and hairless undersides. They curve up on the stem. Pale to deep pinkish purple flowers are borne in rounded clusters from the leaf axils. The fruit is a greenish follicle. The flowers are insect-pollinated, but the plant often reproduces vegetatively via the rhizome.

Asclepias sullivantii Smooth Milkweed Asclepias sullivantii Guide to Kansas Plants

This species is very similar to Asclepias syriaca, the common milkweed, and the two easily hybridize. Common milkweed can be distinguished by several characters. Its blunt-tipped leaf blades have a coating of hairs on the undersides and are straight on the stem, not curving up. The flowers are smaller and more numerous, and the surface of the follicle is rougher.


The native habitat of the plant includes prairie and meadows. It grows in moist areas, such as river bottomland.


Insects that take nectar from the plant include bumblebees and other bees, wasps, ants, flies, and butterflies. The caterpillars of the monarch butterfly feed on the foliage. The larva of the milkweed leaf-miner (Liriomyza asclepiades) mine the leaves. Aphids that can be found on the plant include the yellow milkweed aphid (Aphis nerii), black aphid (Aphis rumicis), and the green peach aphid (Myzus persicae).

The ruby-throated hummingbird takes nectar.


Most Asclepias are toxic if consumed in large quantities due to cardiac glycoside content.

Asclepias sullivantii Asclepias sullivantii Sullivant39s Milkweed Minnesota Wildflowers


Asclepias sullivantii Wikipedia

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