bird-on-the-wing

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

• noun a common trailing perennial milkwort of eastern North America (Polygala paucifolia), having leaves like wintergreen and usually rosy-purple flowers with winged sepals.

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

• noun common trailing perennial milkwort of eastern North America having leaves like wintergreen and usually rosy-purple flowers with winged sepals