Clitoria ternatea.
Botanical name:
Clitoria ternatea Linn. Leguminosae. Butterfly Pea.
Mountains of Madagascar and Mauritius. In the Philippines, the pods are sometimes eaten. In Amboina, the flowers are used to tinge boiled rice a cerulean color.
Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.