The Complete Guide to Interpreting Your Dreams

by Stearn Robinson - Tom Corbett
A warning against promiscuous sex relations or confiding in casual acquaintances is contained in a dream fea- turing watercress, espe- cially if you picked it.

The Mystic Dream Book

by Stephen Girard
For a person to dream that he is eating watercress, denotes that his health will be good for a considerable time.

Islamic Dream Interpretation

by Ibn Seerin
(bot. Nasturtium officinale) Watercress is the legume of the dwellers of hell-fire.

If one sees it in a dream, it means that he follows the conduct of the dwellers of hell-fire.