Arisaema section Arisaema Three different types of tubers are encountered:

2. A second shape found in section Arisaema is the group A. dilatatum, A. elephas, A. wilsonii... where tubers are flattened on both upper and lower sides with many tuberlets soon developing their own roots and becoming independent of the mother tuber. The size may vary from small in A. elephas to huge in A. wilsonii.