corn mayweed
n 1: ubiquitous European annual weed with white flowers and
finely divided leaves naturalized and sometimes
cultivated in eastern North America; sometimes included
in genus Matricaria [syn: scentless camomile, scentless
false camomile, scentless mayweed, scentless hayweed,
Tripleurospermum inodorum, Matricaria inodorum]
2: European white-flowered weed naturalized in North America
[syn: corn chamomile, field chamomile, Anthemis
arvensis]