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Desert Milkweed

Asclepias erosa

Desert Milkweed, Asclepias erosa, photo © by Michael Plagens

Observed blooming along main road through Joshua Tree National Park north of Cottonwood Spring, California, USA. 1 May 2010.

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RANGE: Far northwestern and western portions of the Arizona Sonoran Desert - ranging into the Mojave Desert of California and also south into the Baja Peninsula.

LEAVES: Opposite leaves are nearly joined at their stem base. Broad, succulent leaves are whitish-green. Underside veins conspicuous. White latex from tears or breaks. The leaves may be densely covered with soft hairs or else be glabrous, i.e. hairless.

FLOWERS: Five-pointed, greenish to white flowers are arrayed in large, spherical umbels.

SEEDS: Seeds covered with long silky hairs inside globose capsule.

SHRUB: Long-lived plants may approach tree size of 2 meters.


Asclepiadaceae -- Milkweed Family

More Info:

Sonoran Desert Field Guide
Sonoran Desert Places
Sonoran Desert Naturalist Home Page


Copyright Michael J. Plagens, 1999-2010