Taxon  Report   1311    
Calochortus umbellatus  Alph. Wood
Oakland mariposa lily,  Oakland star tulip
Calochortus umbellatus
© 1997 Doreen L. Smith
Photos from
CalPhotos / Calflora
Calochortus umbellatus
© 2018 Brian Charles
Calochortus umbellatus
© 2013 John Doyen
Calochortus umbellatus, a monocot, is a perennial herb (bulb) that is native to California, is endemic (limited) to California.
CNPS Rare Plant Rank: 4.2 (limited distribution).   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
Calochortus umbellatus
© 2018 Glen Schneider
Genus: Calochortus
Communities: Chaparral, Valley Grassland, Yellow Pine Forest, Mixed Evergreen Forest

Serpentine affinity: 2.9; (strong indicator)

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
ICPN: Calochortus collinus
More information about  Calochortus umbellatus
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
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 18, 2019).