Quick definitions from WordNet (Genus hypericum)
▸ 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
▸ 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