20. Dalbergia obtusifolia (Baker) Prain, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 70: 42. 1901.
钝叶黄檀 dun ye huang tan
Dalbergia ovata Graham ex Bentham var. obtusifolia Baker in J. D. Hooker, Fl. Brit. India 2: 231. 1876; D. glauca Kurz.
Trees, 13-17 m tall. Branches spreading; young shoots pendulous, glabrous. Leaves 20-30 cm; stipules early caducous; leaflets 5-7; petiolules ca. 5 mm; blades elliptic or obovate, sometimes basal suborbicular, subleathery, terminal one largest, 5-14 × 4.5-8 cm, both surfaces glabrous, both ends rounded or sometimes apex emarginate and base broadly cuneate. Panicles terminal or axillary, 15-20 × 12-15 cm; peduncles and pedicels yellowish puberulent; bracts and bracteoles ovate, puberulent; bracteoles ca. 1/2 as long as calyx, caducous. Calyx campanulate, 5-toothed; teeth ovate, shorter than tube, obtuse, lowest tooth slightly longer than others. Corolla pale yellow; petals slightly long clawed; standard oblong, emarginate; wings and keel with downward short auricles on upper side below. Stamens 10, monadelphous; filaments alternately shorter and longer. Ovary long stipitate, elliptic, glabrous, 3-ovuled; style long; stigma small. Legume oblong to strap-shaped, 4-8 × 1-1.5 cm, leathery, distinctly reticulate opposite 1 or 2 seeds. Seeds reniform, ca. 10 × 6 mm; testa brown, smooth. Fl. Mar, fr. Jun-Aug.
● Open forests, mountain slopes, among bushes at riversides; 800-1300 m. Guizhou, S Yunnan.