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

Type of: aster

• immunopathology
• immunosuppressant
• immunosuppressed
• immunosuppression
• immunosuppressive
• immunosuppressive drug
• immunosuppressor
• immunotherapeutic
• immunotherapy
• immure
• immurement
• immutability
• immutable
• immutableness
• immutably
• IMO
• Imogene Coca
• imou pine
• imp
• impact
• impact printer
• impacted
• impacted fracture
• impacted tooth
• impactful