1. Five-needled piñon of southern California and northern Baja California having (sometimes three-needled or four-needled showing hybridization from Pinus californiarum)
   - Pinus quadrifolia, Pinus parryana

Type of: piñon, pinyon

• bottom-dweller
• bottom-dwelling
• bottom-feeder
• bottom-feeding
• bottom-up
• bottomed
• bottomland
• bottomless
• bottomlessness
• bottommost
• bottoms up
• botuliform
• botulin
• botulinal
• botulinum
• botulinum toxin
• botulinum toxin A
• botulinus
• botulinus toxin
• botulism
• botulismotoxin
• bouchee
• bouclé
• boudoir
• bouffant