Taxon  Report   4206    
Holocarpha obconica  (J. C. Clausen & D. D. Keck) D. D. Keck
San joaquin tarweed
Holocarpha obconica
© 2015 Neal Kramer
Photos from
CalPhotos / Calflora
Holocarpha obconica
© 2010 Neal Kramer
Holocarpha obconica
© 2011 Zoya Akulova
Holocarpha obconica, a dicot, is an annual herb that is native to California, is endemic (limited) to California.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Holocarpha obconica
© 2010 Neal Kramer
Genus: Holocarpha
Communities: Valley Grassland, Foothill Woodland

Habitat: slopes

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
ICPN: Holocarpha obconica ssp. autumnalis
ICPN: Hemizonia obconica
ICPN: Holocarpha obconica ssp. obconica
More information about  Holocarpha obconica
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 21, 2019).