Calflora
Taxon  Report   1830    
Ceanothus thyrsiflorus  Eschsch.
Blueblossom
Ceanothus thyrsiflorus
© 2008 Gary McDonald
Photos from
CalPhotos / Calflora
Ceanothus thyrsiflorus
© 2006 Steve Matson
Ceanothus thyrsiflorus
© 2007 Luigi Rignanese
Ceanothus thyrsiflorus, a dicot, is a tree or shrub 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 + photos)



point, line, or polygon

Plant Characteristics
and Associations



Bloom Period
Ceanothus thyrsiflorus
© 2018 Cynthia Powell
Family: RHAMNACEAE  
Genus: Ceanothus
Subspecies and Varieties:
Communities: Chaparral, Redwood Forest, Mixed Evergreen Forest, Northern Coastal Scrub
Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Ceanothus thyrsiflorus var. repens
More information about  Ceanothus thyrsiflorus
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation

USDA PLANTS Profile (CETH)

Search the International Plants Names Index

Search efloras.org (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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available: https://www.calflora.org/   (Accessed: Nov 21, 2018).

The information on this page comes from diverse sources. None of the links are sponsored.