Flowers yellow, in racemes, with caducous bracts and bractlets.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
Calyx gamosepalous, caducous, 4-5 short teeth.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
Calyx, 5 unequal petaloid segments, imbricated, caducous.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera