Matricaria occidentalis

Matricaria occidentalis
Scientific classification
Kingdom:	Plantae
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Matricaria
Species:	M. occidentalis
Binomial name
Matricaria occidentalis (Greene) Rydb.
Synonyms
Chamomilla occidentalis Greene

Chamomilla occidentalis Greene

Matricaria occidentalis, commonly known as valley mayweed, is an annual plant native to North America. It is in the family Asteraceae.

Stem either branching or below the corymbose summit, 15-45(70)cm high; not strongly scented; heads as much as 1.5 cm in diameter, conical in shape and greenish yellow in color; achenes sharply angled. Used as substitute for chamomile.

Usually occurs in wetlands, but occasionally found in non wetlands. It is native to California and Oregon.

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