Flowers sweetly scented, in subglobose heads c. 1 cm. in diam., on puberulous very sparsely prickly peduncles c. 2 cm. long, 1-3 together from axils, not conspicuously aggregated into a panicle.
Climber; stems slender, ± appressed-puberulous, slowly glabrescent, sparsely to densely armed with downwardly hooked prickles up to 2·5 mm. long.
Pods 7-9 x 1·2-6 cm., ± curved, with recurved prickles, sometimes sparse, on margins only.
Corolla c. 2-3 mm. long.
Calyx c. 0·5 mm. long.
Stamens c. 8.