Tetraphylloides bengalensis - East-Indian Fourleaf

East-Indian Fourleaf is a perennial herb, slightly woody. Flowers are borne in leaf-axils cymes, 10-30 flowered, blue. Flower-stalks are 4-6 mm long. Sepal-cup is about 1.5 cm long; flower tube about 2 cm long; limb about 1 cm long, somewhat pointed, inside sparsely seilky. Filaments are hairless. Flower-cluster-stalks are 3-4 mm long. Bracts are about 2 mm long. Stems are 10-30 cm long, brown woolly, one pair of scale leaves along stem, 1-2 cm long. Leaves usually 2-pairs rarely 3, at the tip, opposite, 9-13 x 7-10 cm, obovate, oblique or narrowed at base, tapering at tip, finely toothed along the margin, young leaves woolly on both surfaces, mature leaves hairless above, woolly beneath, especially along veins; veins prominent on both surfaces, raised beneath, lateral veins 9-14 on either side of midrib, do not terminate along a margin. Leaf-stalks are 5-7 mm long. Capsules are lanceshaped, 12-8 x about 3 mm, narrowed above. East-Indian Fourleaf is found in Arunachal Pradesh, Assam, Manipur and Bangladesh. Flowering: June-February.