1. Aspen with a narrow crown; eastern North America
   - Canadian aspen, bigtooth aspen, bigtoothed aspen, big-toothed aspen, large-toothed aspen, large tooth aspen

Type of: aspen

• Sitotroga cerealella
• Sitsang
• Sitta
• Sitta canadensis
• Sitta carolinensis
• Sitta europaea
• sitter
• Sittidae
• sitting
• Sitting Bull
• sitting duck
• sitting room
• sitting trot
• situate
• situated
• situation
• situation comedy
• situs
• Sitwell
• sitz bath
• Sium
• Sium latifolium
• Sium sisarum
• Sium suave
• Siva