1. Widely circulated or diffused
   "a widespread doctrine"; "widespread fear of nuclear war" 
2. Distributed over a considerable extent
   "widespread nuclear fallout"
   - far-flung

See also: distributed, general

• genus Rhodanthe
• genus Rhododendron
• genus Rhodosphaera
• genus Rhodymenia
• genus Rhus
• genus Rhyacotriton
• genus Rhynchoelaps
• genus Rhyncostylis
• genus Rhynia
• genus Ribes
• genus Richea
• genus Richmondena
• genus Ricinus
• genus Rickettsia
• genus Riparia
• genus Rissa
• genus Rivina
• genus Rivulus
• genus Robinia
• genus Roccella
• genus Roccus
• genus Rodolia
• genus Romneya
• genus Roridula
• genus Rorippa