Taxon  Report   338    
Amsonia tomentosa  Torr. & Frém.
Gray amsonia,  Woolly amsonia, Woolly bluestar
Amsonia tomentosa
© 2006 Heath McAllister
Photos from
CalPhotos / Calflora
Amsonia tomentosa
© 2010 Neal Kramer
Amsonia tomentosa
© 2004 James M. Andre
Amsonia tomentosa, a dicot, is a perennial herb that is native to California, is also found outside of California, but is confined to western North America.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Amsonia tomentosa
© 2010 Neal Kramer
Genus: Amsonia
Communities: Creosote Bush Scrub, Pinyon-Juniper Woodland, Joshua Tree Woodland
Name Status:
Accepted by JEF + PLANTS

Alternate Names:
ICPN: Amsonia brevifolia
ICPN: Amsonia tomentosa var. tomentosa
More information about  Amsonia tomentosa
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jan 16, 2019).