Taxon  Report   9703 
Asclepias asperula  (Decne.) Woodson
Spider milkweed
Asclepias asperula
© 2005 James M. Andre
Click on a photo to see it bigger.
Asclepias asperula
© 2014 Wynn Anderson
Asclepias asperula
© 2010 Judy McBride
Asclepias asperula, 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 asperula
© 2005 James M. Andre
Genus: Asclepias
Subspecies and Varieties:
Pinyon-Juniper Woodland
Toxicity: MINOR, DERMATITIS   [California Poison Control System 2010]    
Distribution by County 

Add an Observation of  Asclepias asperula

Name Status:
Accepted by TJM2 + PLANTS + JM93
More information about  Asclepias asperula
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on CalPhotos / Google Images

Jepson eFlora

Records from the Consortium of California Herbaria


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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Mar 18, 2018).

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