1. Perennial of western North America having white flowers
   - white prairie aster

Type of: aster

• Thalarctos
• Thalarctos maritimus
• thalassaemia
• thalassaemia major
• thalassemia
• thalassemia major
• thalassic
• Thalassoma
• Thalassoma bifasciatum
• thalassotherapy
• thaler
• Thales
• Thales of Miletus
• Thalia
• Thaliacea
• Thalictrum
• thalidomide
• Thalidone
• thallium
• thalloid
• Thallophyta
• thallophyte
• thallophytic
• thallus
• thalmencephalon