Asclepias subverticillata (A. Gray) Vail
Horsetail milkweed, Poison Milkweed
Asclepiadaceae (Milkweed Family)
Synonym(s): Asclepias galioides
USDA Symbol: ASSU2
A plant forming feathery clumps or patches and bearing white, star-like flowers in round umbels and 3-5 very narrow leaves in whorls at nodes; sap milky.
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Bloom InformationBloom Time: May , Jun , Jul , Aug , Sep
DistributionUSA: AZ , CO , ID , KS , MO , NE , NM , NV , OK , TX , UT , WY
Native Distribution: Idaho, Nevada, and Arizona east to Missouri and south to Texas and Mexico.
Native Habitat: Sandy or rocky plains and desert flats and slopes; common along roadsides.
Value to Beneficial InsectsSpecial Value to Native Bees
Special Value to Bumble Bees
Special Value to Honey Bees
Supports Conservation Biological Control
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Sibley Nature Center - Midland, TX
Additional resourcesUSDA: Find Asclepias subverticillata in USDA Plants
FNA: Find Asclepias subverticillata in the Flora of North America (if available)
Google: Search Google for Asclepias subverticillata
MetadataRecord Modified: 2007-01-01
Research By: TWC Staff