21. Campylotropis pinetorum (Kurz) Schindler, Repert. Spec. Nov. Regni Veg. 11: 429. 1912.
松林杭子梢 song lin hang zi shao
Lespedeza pinetorum Kurz, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 42: 230. 1874.
Shrubs, 1-2 m tall. Branches tawny velutinous. Petiole 1-5 cm, densely velutinous; stipels absent; leaflets ovate or elliptic, terminal one 2-13 × 1-6 cm, adaxially tawny velutinous, base obtuse or rounded, apex acute. Racemes 2-10 cm, densely flowered; rachis tawny velutinous mixed with dense glandular hairs; bracts linear, usually more than 3.5 mm. Pedicels 1.5-4 mm, densely pubescent mixed with glandular hairs. Calyx ± densely shortly ascending hairy mixed with glandular hairs; tube 1.7-2.5 mm; lobes narrowly triangular, 3-4.5 mm, upper lobe distinctly 2-toothed. Corolla pinkish white; standard elliptic, 9-10.5 mm, apex obtuse; wings 7.5-9 mm, clawed at base; keel shallowly inflexed, 10.5-12 mm, clawed at base. Ovary narrowly ovoid, ca. 2.3 mm, shortly hairy; style incurved, ca. 7.7 mm. Legume obliquely elliptic to narrowly obovoid, 6-6.5 × 3-4 mm, shortly ascending hairy sometimes mixed with glandular hairs, apex acute. Seeds purplish brown, obliquely oblong, 3.2-4 × 1.5-2 mm.
Mountain slopes, thickets, forest margins, sparse forests, open grassy slopes, streamsides; 700-2800 m. Guangxi, Guizhou, Yunnan [Laos, Myanmar, Thailand, Vietnam].
Campylotropis pinetorum subsp. pinetorum occurs in Laos, Myanmar, Thailand, and Vietnam. Two other subspecies occur in China.