WordNet (r) 3.0 (2006):

Johnny-jump-up
    n 1: a common and long cultivated European herb from which most
         common garden pansies are derived [syn: wild pansy,
         Johnny-jump-up, heartsease, love-in-idleness, pink
         of my John, Viola tricolor]
    2: common violet of the eastern United States with large pale
       blue or purple flowers resembling pansies [syn: bird's-foot
       violet, pansy violet, Johnny-jump-up, wood violet,
       Viola pedata]