Note: Do not rely on this information. It is very old.
Heartsease
Heartsease and Pansy, the best known of the many popular names for the cultivated forms of Viola tricolor, a very variable and mainly European species of violet, with large spreading pinnatifid leafy stipules to its long-stalked leaves, and flowers varying much in colour and size, but never cleistogamous (q.v.), as in most other violets.