Matricaria
chamomile, matricaria, mayweed
2 species
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Matricaria chamomillawild chamomile, scented mayweed
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; British Columbia to California, east in sporadic occurrences to the Atlantic Coast.
Habitat: Roadsides, fields, wastelots, and other disturbed sites.
Origin: Introduced from Europe
Flowers: April-June
Growth Duration: annual
Matricaria discoideapineapple weed
Distribution: Widely distributed on both sides of the Cascades crest Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Fields, roadsiides, wastelots, and other disturbed, open areas.
Origin: Native
Flowers: May-September
Growth Duration: annual