'Hypericum' definitions:

Definition of 'Hypericum'

From: WordNet
noun
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: Hypericum, genus Hypericum]

Definition of 'Hypericum'

From: GCIDE
  • 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. [1913 Webster]