Taxon  Report   4068 
Hemizonia congesta  DC.  ssp. congesta 
Hayfield tarweed
Hemizonia congesta ssp. congesta
© 2011 Zoya Akulova
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Hemizonia congesta ssp. congesta
© 2015 John Doyen
Hemizonia congesta ssp. congesta
© 2015 Vernon Smith
Hemizonia congesta ssp. congesta, a dicot, is an annual herb that is native to California and is endemic (limited) to California.
CNPS Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   8th Edition

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Hemizonia congesta ssp. congesta
© 2001 Doreen L. Smith
Genus: Hemizonia
Parent Record Hemizonia congesta
Northern Coastal Scrub, Valley Grassland
AFFINITY to serpentine soil:   1.3 (weak indicator / indifferent)   [Safford et al 2005]
Distribution by County 

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Name Status:
Accepted by TJM2 + CNPS + PLANTS + JM93
Alternate Names:
(according to)

PLANTS: Hemizonia congesta ssp. lutescens
PLANTS: Hemizonia lutescens
PLANTS: Hemizonia luzulifolia var. lutescens
PLANTS: Hemizonia multicaulis
TJM2 + CNPS: Hemizonia congesta ssp. leucocephala
More information about  Hemizonia congesta ssp. congesta
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on CalPhotos / Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


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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:   (Accessed: Feb 24, 2018).

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