a European herb (Valerianella locusta) of the valerian family, often found in cornfields, with rose, blue, or white flowers and leaves that are used in salads
See corn salad in American Heritage Dictionary 4
noun
Any of several plants of the genus Valerianella, especially a Eurasian annual (V. locusta or V. olitoria), having small, white to pale bluish flowers and edible young leaves used in salads or as a potherb. Also called lamb's lettuce, mache.