Aristolochia westlandii Hemsl.

Shrubs climbing. Stems terete, striate, densely villous. Petiole 1-1.5 cm, sparsely villous; leaf blade lanceolate-oblong to narrowly oblong, 12-20 × 2-5 cm, leathery or papery, abaxially sparsely villous, glaucous, adaxially glabrous, veins pinnate, 8-12 pairs, base narrowly auriculate, sinus 2-5 cm deep, apex acute. Flowers in axils of leafy shoots or on old woody stems, solitary. Peduncle pendulous, 7-12 cm, villous; bractlets not seen. Calyx yellow with purple veins and blotches, 10-15 cm; tube geniculately curved, abaxially villous; basal portion of tube 50-60 × 15-20 mm; limb discoid, 8-13 cm in diam., shallowly 3-lobed or emarginate; lobes broadly rounded, slightly unequal. Anthers oblong, 4.5-5 mm. Gynostemium 3-lobed. Capsule not seen. Fl. Apr-Mar.

Guangdong.

* Forests in valleys; 300-800 m.

Aristolochia westlandii is a species of plant in the family Aristolochiaceae. It is found in China and Hong Kong, in valley forests in Guangdong Province at an elevation of 300 to 800 metres (980 to 2,620 ft). The leaves are long, narrow and pointed (12–20 centimetres [4.7–7.9 in]). The flowers are bent tubes from 10–15 centimetres (3.9–5.9 in) long that grow from the base of a leaf. They are yellow with purple veins and blotches.