1. Characteristic of or relating to winter
   - brumal, hiemal

See also: wintery, wintry

• genus Tulostoma
• genus Tunga
• genus Tupaia
• genus Tupinambis
• genus Turbatrix
• genus Turdus
• genus Turnix
• genus Turreae
• genus Turritis
• genus Tursiops
• genus Tussilago
• genus Tylenchus
• genus Tympanuchus
• genus Typha
• genus Tyrannosaurus
• genus Tyrannus
• genus Tyto
• genus Uca
• genus Uintatherium
• genus Ulex
• genus Ulmus
• genus Ulva
• genus Uma
• genus Umbellularia
• genus Umbrina