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|Noun||1.||corn mayweed - ubiquitous European annual weed with white flowers and finely divided leaves naturalized and sometimes cultivated in eastern North America; sometimes included in genus Matricaria|
Matricaria inodorum, scentless camomile, scentless false camomile, scentless hayweed, scentless mayweed, Tripleurospermum inodorum
genus Tripleurospermum, Tripleurospermum - small genus comprising plants often included in genus Matricaria
|2.||corn mayweed - European white-flowered weed naturalized in North America|
composite plant, composite - considered the most highly evolved dicotyledonous plants, characterized by florets arranged in dense heads that resemble single flowers