scentless mayweed

from WordNet (r) 3.0 (2006)
scentless 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}, {corn
         mayweed}, {Tripleurospermum inodorum}, {Matricaria
         inodorum}]