Climbing shrub or tree 3–6 m. high, unarmed.. Young branchlets glabrous or nearly so.. Leaves with 2–4 pairs of pinnae; tendrils absent, except for modified ± hooked pinnae on leaves on long shoots: leaflets 7–10 pairs, narrowly oblong or oblanceolate-oblong, 0.9–2.5(–3.8) cm. long, 0.3–0.9 (–1.4) cm. wide, rounded and sometimes emarginate at apex, asymmetric at base, puberulous on both surfaces, sometimes subglabrous or glabrous.. Spike-like racemes axillary, solitary or 2–3 together, often aggregated on short lateral leafless shoots, 3–8 cm. long (including peduncle), glabrous or nearly so; pedicels 0.3–0.75 mm. long.. Flowers yellow (? or white), sweetly scented.. Calyx glabrous, 0.5–0.75 mm. long.. Petals about 2 mm. long.. Stamen-filaments about 2.5–4 mm. long.. Pods 17–23 cm. long and 4.3–8.4 cm. wide, flat, subcoriaceous.. Seeds about 11–14 mm. long and 9 mm. wide.. Fig. 3.
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