Dicliptera chinensis - Chinese Foldwing

Chinese Foldwing is a herbs 30-80 cm tall, annual or biennial. Stems are ridged, basally diffuse, erect above, hairless except for pubescence on young branches and nodes. Leaf-stalks are up to 0.5-3 cm long, hairy. Leaves are ovate-elliptic, 2-8 × 1.5-4 cm, sparsely puberulent along veins below, hairless above, secondary veins 4 or 5 on each side of midvein, base narrow to flat narrowing into the stalk, margin entire or slightly wavy, tip pointed. Inflorescences each consist of 3 or 4 stalked cymes from upper leaf axils, 1-4 cm. Inflorescence bracts are subulate to linear to oblanceolate to obovate, 3-7.5 × 0.3-1 mm. Outer bracteoles are elliptic to obovate, 5-13 × 3-8 mm, unequal, abaxially puberulent, 3-veined, margin ciliate, apex acute and mucronate; inner bracteoles linear, ca. 5 mm, abaxially hirsute, apex acuminate. Pedicel 0.5-3 mm, puberulent. Sepal tube about 5 mm, sepals linear, equal, margin hairy, tip long-pointed. Flowers are pale purple, with purple spots in the throat, 1-1.2 cm long, outside velvet-hairy, tube slender, about 6 mm, 1.5 mm wide. Limb is 2-lipped. Lower lip is ovate, about 5 × 3 mm, tip entire. Upper lip is 4 × 1.5 mm, shallowly 3-lobed. Stamens are inserted near the tip of flower tube. Filaments are about 4 mm, hairless. Capsules are broadly ellipsoid, about 6 mm, puberulent, 4-seeded, tip apiculate.