1. European perennial St John's wort; Ireland and France to western Siberia
   - Hypericum tetrapterum, Hypericum maculatum

Type of: St John's wort

• antheridium
• Antheropeas
• Antheropeas wallacei
• antherozoid
• anthesis
• Anthidium
• anthill
• Anthoceropsida
• Anthoceros
• Anthocerotaceae
• Anthocerotales
• anthocyanin
• anthologise
• anthologist
• anthologize
• anthology
• Anthonomus
• Anthonomus grandis
• Anthony
• Anthony Burgess
• Anthony Charles Lynton Blair
• Anthony Comstock
• Anthony Eden
• Anthony Hopkins
• Anthony Trollope