lamb's lettuce vs common corn salad

lamb's lettuce and common corn salad both are nouns.

Word	Noun	Adjective	Verb	Adverb
lamb's lettuce	Yes	No	No	No
common corn salad	Yes	No	No	No

As nouns, lamb's lettuce and common corn salad are synonyms defined as:

lamb's lettuce and common corn salad: widely cultivated as a salad crop and pot herb; often a weed

Other synonyms of lamb's lettuce include Valerianella locusta, Valerianella olitoria.

lamb's lettuce (noun)	common corn salad (noun)
widely cultivated as a salad crop and pot herb; often a weed	widely cultivated as a salad crop and pot herb; often a weed