Source : Webster's Revised Unabridged Dictionary (1913)

Hypericum \Hy*per"i*cum\, n. [L., fr. Gr. ?, ?; ? under, among +
   ?, ?, heath, heather.] (Bot.)
   A genus of plants, generally with dotted leaves and yellow
   flowers; -- called also {St. John's-wort}.

Source : WordNet®

Hypericum
     n : large almost cosmopolitan genus of evergreen or deciduous
         shrubs and herbs with often showy yellow flowers;
         cosmopolitan except tropical lowlands and arctic or high
         altitudes and desert regions [syn: {genus Hypericum}]