scentless hayweed
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}]