cowherb

from WordNet (r) 3.0 (2006)

cowherb
    n 1: European annual with pale rose-colored flowers; cultivated
         flower or self-sown grainfield weed; introduced in North
         America; sometimes classified as a soapwort [syn:
         {cowherb}, {cow cockle}, {Vaccaria hispanica}, {Vaccaria
         pyramidata}, {Saponaria vaccaria}]

from The Collaborative International Dictionary of English v.0.48

cowherb \cowherb\ n.
   a European annual with pale rose-colored flowers; cultivated
   flower or self-sown grainfield weed; introduced in North
   America; sometimes classified as a soapwort; -- also called
   the {cow-cockle}.

   Syn: cow cockle, cow-cockle, Vaccaria hispanica, Vaccaria
        pyramidata, Saponaria vaccaria.
        [WordNet 1.5]