Taxon  Report   747 
Asclepias fascicularis  Dcne.
Mexican whorled milkweed,  Narrow leaf milkweed
Asclepias fascicularis
© 2003 Michael Charters
Click on a photo to see it bigger.
Asclepias fascicularis
© 2003 Christopher L. Christie
Asclepias fascicularis
© 2009 Neal Kramer
Asclepias fascicularis, a dicot, is a perennial herb that is native to California and is also found outside of California, but is confined to western North America.

Interactive Distribution Map

Observation Hotline
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Plant Characteristics
and Associations

Bloom Period
Asclepias fascicularis
© 2003 Christopher L. Christie
Genus: Asclepias
Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Foothill Woodland, Chaparral, Valley Grassland, (many plant communities), wetland-riparian
Wetlands:Equally likely to occur in wetlands or non wetlands [U.S. Fish & Wildlife Service.]
Toxicity: MINOR, DERMATITIS   [California Poison Control System 2010]    
Distribution by County 

Add an Observation of  Asclepias fascicularis

Name Status:
Accepted by TJM2 + PLANTS + JM93
Alternate Names:
(according to)

PLANTS: Asclepias mexicana
More information about  Asclepias fascicularis
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Photos on CalPhotos / Google Images
Photos and ID tips from

Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


Search the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation,
with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria.
[web application]. 2016. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Oct 27, 2016).

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