1. Coextensive with the genus Tropaeolum
   - Tropaeolaceae, family Tropaeolaceae

Type of: rosid dicot family

Part of: Geraniales, order Geraniales

• AstroTurf
• astucious
• astute
• astutely
• astuteness
• astylar
• Asuncion
• asunder
• Asur
• Asura
• Asurbanipal
• Asvina
• Asvins
• Aswan
• Aswan High Dam
• aswoon
• asylum
• asylum seeker
• asymmetric
• asymmetrical
• asymmetrically
• asymmetry
• asymptomatic
• asymptote
• asymptotic