Description from Flora of China
Raphiocarpus sinicus W. Y. Chun, Sunyatsenia 6: 275. 1946.
Shrubs to subshrubs. Stems 1-1.5 m, glabrous to very sparsely puberulent. Leaves spread along stem, equal to unequal in a pair; petiole 3-13 mm; leaf blade narrowly elliptic to obovate, 5-17 X 1.4-6.3 cm, glabrous, base slightly oblique, cuneate to rounded, margin indistinctly to distinctly serrulate, apex acuminate to caudate-acuminate. Cymes 1-5-flowered; peduncle 2-6 mm, sparsely puberulent to sparsely pubescent; bracts 2, persistent, oblanceolate to linear-lanceolate, 1-2 X ca. 0.5 mm, margin entire. Calyx 5-sect from base; segments lanceolate, 2.5-3 X ca. 1 mm. Corolla white, often flushed purple, 1.2-1.5 cm; tube ca. 8 mm; adaxial lip ca. 3 mm; abaxial lip ca. 6 mm. Adaxial stamens 4-5.5 mm, abaxial ones 5-6.5 mm; anther thecae not confluent; staminode absent. Pistil 6-8 mm; ovary glabrous. Style 1.5-2 mm, sparsely glandular puberulent; stigmas deltoid, ca. 0.2 mm. Capsule 2-5 cm. Fl. Jul-Aug, fr. Jul-Oct.
Many specimens of Didissandra sinica are labelled as having come from Guangdong, but that part of Guangdong is now in Guangxi.
* Fertile soil in shady and damp places under forests; 400-2400 m. S Guangxi.