Taxon  Report   120    
Ageratina shastensis  (D. W. Taylor & Stebbins) R. M. King & H. Rob.
Shasta ageratina,  Shasta eupatorium
Ageratina shastensis
© 2011 Len Lindstrand III
Photos from
CalPhotos / Calflora
Ageratina shastensis
© 2011 Sierra Pacific Industries
Ageratina shastensis
© 2013 Dana York
Ageratina shastensis, a dicot, is a perennial herb that is native to California, is endemic (limited) to California.
also called Eupatorium shastense
CNPS Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   8th Edition

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Ageratina shastensis
© 2011 Len Lindstrand III
Genus: Ageratina
Communities: Chaparral, Yellow Pine Forest
Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
ICPN + CNPS + PLANTS: Eupatorium shastense
More information about  Ageratina shastensis
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 17, 2019).