Also called lamb's lettuce and corn salad, the narrow, dark green leaves of this plant are tender and have a tangy, nutlike flavor. In addition to being used as a salad green, corn salad can also be steamed and served as a vegetable. Though it's often found growing wild in American cornfields, it's considered a "gourmet" green and is therefore expensive and hard to find. It doesn't keep well and should be used within a day or two of purchase.
From The Food Lover's Companion, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.