e-Key v3 - Key to Pontederiaceae Genera
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.
Backtrack a
  • Fruit a 1-seeded nut, enclosed by the hardened base of the perianth tube
b
  • Fruit a 3-locular, many-seeded capsule, not enclosed by the base of a modified perianth tube
Backtrack a
  • Stamens 3
b
  • Stamens 6
Backtrack a
  • Perianth segments free to base
b
  • Perianth segments united into a tube below