Leaves simple, oval, oblong, without stipules, with short petioles.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
Petioles long with 2 stipules at the base.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
Petioles very short, curved near the leaf, 2 stipules near the base.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera