Calflora
Taxon  Report   9500    
Matricaria occidentalis  Greene
Valley mayweed
Matricaria occidentalis
© 2010 Zoya Akulova
Photos from
CalPhotos / Calflora
Matricaria occidentalis
© 2013 Neal Kramer
Matricaria occidentalis
© 1999 Dean Wm. Taylor
Matricaria occidentalis, a dicot, is an annual herb that is native to California, is also found elsewhere in North America and beyond.

Interactive Distribution Map


Observation Hotline
(observation details + photos)



point, line, or polygon

Plant Characteristics
and Associations



Bloom Period
Matricaria occidentalis
© 2014 Neal Kramer
Communities: wetland-riparian

Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
ICPN + PLANTS: Chamomilla occidentalis
More information about  Matricaria occidentalis
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

USDA PLANTS Profile (MAOC)

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: http://www.calflora.org/   (Accessed: Oct 19, 2018).

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