长叶棋子豆 chang ye qi zi dou

Cylindrokelupha alternifoliolata T. L. Wu, Acta Phytotax. Sin. 19: 219. 1981; Albizia alternifoliolata (T. L. Wu) Y. H. Huang; Archidendron glabrifolium (T. L. Wu) I. C. Nielsen; C. glabrifolia T. L. Wu.

Trees, to 6 m tall. Branchlets brown, yellow pubescent. Leaf petiole 2.5-6 cm, with globose gland above middle; pin­nae 1 pair; pinna rachis 10-13 cm, sparsely pubescent; petio­lules 5-7 mm; leaflets 3 pairs, alternate except terminal oppo­site pair, oblong, 7-15 × 4-8 cm, lateral veins 3-5 pairs, base acute, apex acuminate. Heads more than 20-flowered, arranged in panicles. Calyx tubular, ca. 4 mm, 5-toothed, sparsely pubes­cent. Corolla tube ca. 5 mm; lobes lanceolate, ca. 4 mm, yellow pubescent. Filaments ca. 1.5 cm. Ovary glabrous. Legume cy­lindric, 18-21 × 4-5 cm, dehiscent along both sutures. Seeds broadly cylindric, ca. 2.8 cm high, ca. 3.5 cm in diam. Fl. Mar, fr. Nov.

● Forests; 1400-2000 m. Guangxi, Yunnan.