蔓茎葫芦茶 man jing hu lu cha

Desmodium pseudotriquetrum Candolle, Ann. Sci. Nat. (Paris) 4: 100. 1825; D. triquetrum (Linnaeus) Candolle subsp. pseudotriquetrum (Candolle) Prain; Pteroloma pseudo­triquetrum (Candolle) Schindler; P. triquetrum (Linnaeus) Desvaux ex Bentham subsp. pseudotriquetrum (Candolle) H. Ohashi; Tadehagi triquetrum (Linnaeus) H. Ohashi subsp. pseudotriquetrum (Candolle) H. Ohashi.

Subshrubs. Stem ascending, 30-60 cm tall. Leaves 1-folio­late; petiole 0.7-3.2 cm, conspicuously winged; wing 3-7 mm wide; blade ovate, sometimes ovate-orbicular, 3-10 × 1.3-5.2 cm, usually less than 3 × as long as wide, lateral veins ca. 8 pairs, not reaching margin but arching and joining together, abaxially sparsely pubescent on veins, adaxially glabrous, base cordate, apex acute. Inflorescences to 25 cm, 2- or 3-flowered fascicles at each node. Pedicel ca. 5 mm, with minute hooked and silky hairs. Calyx ca. 5 mm; lobes lanceolate, slightly longer than tube. Corolla purplish red, ca. 7 mm; standard nearly orbicular, emarginate at apex; wings obovate, base auriculate; keel falcate, not auriculate, clawed. Ovary puberulent; style gla­brous. Legume 5-8-jointed, densely white pubescent on both sutures, lateral surfaces reticulate veined, entirely glabrous. Fl. Aug, fr. Oct-Nov.

Sparse forests on mountains; 500-2000 m. ?Fujian, N Guang­dong, Guangxi, Guizhou, Hunan, S Jiangxi, Sichuan, Taiwan, Yunnan, ?Zhejiang [?Bhutan, India, Nepal, Philippines].