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Blunt-leaf milkweed

Also known as: sand milkweed

Asclepias amplexicaulis E.B. Sm.

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Blunt-leaf milkweed inflorescence
Blunt-leaf milkweed flowers
Blunt-leaf milkweed flowers
Blunt-leaf milkweed
Blunt-leaf milkweed flowers
Blunt-leaf milkweed
Blunt-leaf milkweed pods
Blunt-leaf milkweed

Morphology

Stem
Erect, stout, mostly solitary, unbranched, glabrous, waxy.
Leaves
Mostly opposite, simple, sessile, thick, broadly ovate or elliptic-oblong, 1.5 to 5 inches long, .75 to 3 inches wide, glabrous, waxy, pale green; bases heart-shaped, clasping; margins wavy, usually minutely pubescent; tips blunt, midribs terminating in short, abrupt points.
Inflorescence
Umbels, solitary, on stout stalks 1 to 12 inches long, 18-60-flowered, terminal.
Flower
5-parted, about .75 inch tall, on slender stalks 1 to 1.75 inch long; calyx lobes lanceolate, green to purple-tinged, lanceolate, glabrous; corolla lobes lanceolate, green or greenish purple, glabrous, curved back and downward; hoods erect to slightly spreading, oblong, pinkish to pale flesh-colored; horns incurved, longer than hoods, conspicuously protruding.
Fruit
Pods, spindle-shaped, 3.5 to 6 inches long, 1/3 to 2/3 inch wide, mostly glabrous, waxy, usually erect on downward-curved stalks; seeds egg-shaped, tufted with white or tan hairs at tips.

Ecology

Habitat
Prairies, roadsides, and open woods, on sandy soils.
Distribution
East 2/3 of Kansas.

Additional Notes

Comments

Formerly treated as Asclepiadaceae - Milkweed Family.

Quick Facts
Plant Type
Wildflower
Family
Apocynaceae - Dogbane Family
Life Span
Perennial
Height
8-32 inches
Last Updated
2007-09-13
Color Groups
White, Green & Greenish White Wildflowers
Flowering Period
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Blooms: May, June, July