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Asteraceae
Matricaria
Matricaria occidentalis
Matricaria occidentalis
Greene, 1886
12% complete
Valley mayweed
Bull. Calif. Acad. Sci. 2: 150 (1886)
Specifications
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Synonyms
Chamomilla occidentalis
Rydb.
Matricaria discoidea subsp. occidentalis
(Greene) P.D.Sell