crown-of-the-field

from The Century Dictionary.

• noun The corn-cockle, Agrostemma Githago.

from the GNU version of the Collaborative International Dictionary of English.

• noun a European annual (Agrostemma githago) having large trumpet-shaped reddish-purple flowers and poisonous seed; a common weed in grainfields and beside roadways; naturalized in America.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun European annual having large trumpet-shaped reddish-purple flowers and poisonous seed; a common weed in grainfields and beside roadways; naturalized in America