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

Type of: piñon, pinyon

• southwestern lip fern
• southwestern toad
• southwestern United States
• southwestern white pine
• southwestward
• southwestwardly
• Soutine
• soutpiel
• souvenir
• souvlaki
• souvlakia
• sovereign
• sovereign immunity
• sovereignly
• sovereignty
• soviet
• Soviet KGB
• Soviet Russia
• Soviet Socialist Republic
• Soviet Union
• sovietise
• sovietism
• sovietize
• Soviets
• sow