Taxon  Report   294 
Ambrosia confertiflora  DC.
Weak leaved burweed,  Weakleaf burr ragweed
Ambrosia confertiflora
© 2011 George Butterworth
More photos from
CalPhotos / Calflora
Ambrosia confertiflora
© 2014 Richard Spellenberg
Ambrosia confertiflora
© 2012 Keir Morse
Ambrosia confertiflora, a dicot, is a perennial herb that is native to California, is also found elsewhere in North America and beyond.

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Plant Characteristics
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Bloom Period
Ambrosia confertiflora
© 2014 Richard Spellenberg
Genus: Ambrosia
Coastal Sage Scrub, Southern Oak Woodland
Distribution by County 

Add an Observation of  Ambrosia confertiflora

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

PLANTS: Franseria confertiflora
PLANTS: Franseria strigulosa
PLANTS: Gaertneria tenuifolia
More information about  Ambrosia confertiflora
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on CalPhotos / Google Images
Photos on

Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

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: Aug 19, 2018).

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