元江杭子梢 yuan jiang hang zi shao

Lespedeza henryi Schindler, Repert. Spec. Nov. Regni Veg. 9: 517. 1911; Campylotropis esquirolii Schindler.

Shrubs, 1-2 m tall. Young branches often distinctly quad­rangular, sparsely shortly appressed hairy. Petiole adaxially angled, often slightly convex above, bisulcate and narrowly winged along both sides, 1-5 cm, shortly appressed hairy; stipels absent; leaflets oblong to ovate, terminal one 3-10 × 1.5-5 cm, abaxially appressed hairy particularly on veins and margin, adaxially glabrous, base rounded, apex obtuse to rounded and retuse and mucronulate. Racemes 3-15 cm; rachis and pedicels with ± dense appressed to ascending short hairs and sparse glandular hairs. Pedicels 6-8.5 mm. Calyx with densely appressed short hairs and glandular hairs; tube 2-2.5 mm; lobes narrowly triangular, 3-4.5 mm. Corolla purple; standard elliptic, 10-13 mm, apex obtuse; wings 10-12.5 mm, clawed at base; keel incurved, 12.5-15 mm, clawed at base. Ovary 2.5-3 mm, shortly appressed hairy; style incurved, ca. 10 mm. Legume ovoid, 6-9 × 4-5.5 mm, shortly ascending hairy, apex obtuse. Seeds purplish black, reniform, ca. 2 × 4 mm. Fl. and fr. Oct-Dec.

● Mountain slopes, thickets, forests; 600-1600 m. Guizhou, Yun­nan.

The wings of this species are sometimes not so prominent, espe­cially on the petioles of small upper leaves. In such a form, this species somewhat resembles Campylotropis polyantha, but it is easily distin­guished by the lack of stipels and longer calyx lobes (3-4.5 mm in C. henryi vs. 1.3-2.5 mm in C. polyantha).

Campylotropis henryi was recorded from Thailand (Gagnepain in Lecomte, Fl. Indo-Chine 2: 520. 1920, as Lespedeza henryi) and Laos (Thuan et al., Fl. Cambodge, Laos & Vietnam 23: 144. 1987), but these are C. decora.