Aristolochia
Polytomous
- GENERAL KEY TO THE SPECIES based on fertile specimens
- KEY TO THE SPECIES - Sumatra, Malay Peninsula and neighbouring islands
- KEY TO THE SPECIES - Java, Lesser Sunda Is., Moluccas, Celebes and neighbouring islands
- KEY TO THE SPECIES - Borneo
- KEY TO THE SPECIES - Philippines
- KEY TO THE SPECIES - New Guinea and neighbouring islands