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Lewis and Clark
SHOWING RECORD: 11 of 33   Disc Mayweed
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image: Disc Mayweed
Photograph from Lewis and Clark Herbarium/Academy of Natural Sciences
Disc Mayweed
(Pineapple-Weed)

Matricaria matricarioides



First Noted by Expedition
June 9, 1806, at Camp Chopunnish, Idaho County, Idaho.
 

Description
Pineapple-weed is a member of the aster family (family Asteraceae) which includes herbs, sometimes shrubs or vines, rarely trees, with simple or compound, alternate or opposite leaves. Flowers small, but organized into larger heads resembling a single, radially symmetrical flower cupped by a ring of green bracts.
 

Note
Species information from enature.com
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Disc Mayweed