1. Hardy deciduous vine having large leaves and flowers with the calyx tube curved like the bowl of a pipe
   - Dutchman's-pipe, pipe vine, Aristolochia macrophylla

Type of: Aristolochia clematitis, birthwort

• asperity
• asperse
• aspersion
• aspersorium
• Asperula
• Asperula odorata
• Asperula tinctoria
• asphalt
• asphaltic
• aspheric
• aspherical
• asphodel
• Asphodelaceae
• Asphodeline
• Asphodeline lutea
• Asphodelus
• asphyxia
• asphyxiate
• asphyxiated
• asphyxiating
• asphyxiation
• asphyxiator
• aspic
• Aspidelaps
• Aspidelaps lubricus