Clerodendrum thomsoniae

Description: It is an evergreen liana growing to 4 m tall, with ovate to oblong leaves 8–17 cm long. The flowers are produced in cymes of 8–20 together, each flower with a pure white to pale purple five-lobed calyx 2.5 cm in diameter, and a red five-lobed corolla 2 cm long and in diameter. The flowers are born in cymose inflorescences arising from the axils of the leaves. The leaves, in turn, are arranged opposite to each other and at right angles to the pairs above and below. 

Flowering and Fruiting: March until May every year during rainy seasons. 

Economic Importance: For the treatment of diseases such as syphilis, typhoid, cancer, jaundice, and hypertension.

Reference: https://en.wikipedia.org/wiki/Clerodendrum_thomsoniae