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