Descripción: Plantas trepadoras o lianas con tronco cilíndrico. Ramitas con lenticelas marrón. Hojas imparipinnadas y alternas, con 3-11 folíolos, alternos en el raquis. Los folíolos son asimétricos y miden de 3-15 x 1.5-8 cm, lanceolados a ovados, con ápice acuminado, bordes enteros y base redondeada. Los folíolos presentan pelos a lo largo de la nervadura central del envés. Estípulas persistentes o deciduas, a veces algo espinescentes en los brotes. Pecíolo de 3-5 cm de largo y pulvinado en la base. Inflorescencias en racimos axilares o subterminales. Flores lilas. Frutos con la semilla basal y un ala en el extremo apical, de 6-9 x 1.5-2 cm, a veces cubiertos de pelos seríceos.

Especies Parecidas: A menudo se confunde con LK copaar Copaifera aromatica LK2 , pero C. aromatica es un árbol que tiene hojas paripinnadas.

Liana or less often a climbing shrub, to 4 m or more long; mature branchlets glabrous, lacking spinescent stipules; younger plants with some branches leafless and with well-developed spinescent stipules. Leaves compound; rachis 5-9 (18) cm long; rachis, petiolule, and underside of blade sparsely ferruginous-pilose; petiolules 1-3 mm long; leaflets 6-13, oblong-lanceolate, ovate or narrowly elliptic, gradually acuminate and often falcate at apex, obtuse to rounded at base (rarely acute), 1.5-7.5 cm long, 0.7-2.7 cm wide, thinly coriaceous. Panicles 1-5 cm long, congested in the upper axils; branches densely ferruginous-tomentose; bracteoles reniform, densely appressed-pubescent; flowers purple, sessile; calyx 3-4 mm long, densely appressed-pubescent, the lobes inconspicuous; standard to 8 mm long; keel and wings only slightly shorter, the outer parts of all petals golden-brown-sericeous. Samaras borne on narrow stipes (to 7 mm long), 6-9.5 cm long, 1.8-2.5 cm wide, very densely golden-puberulent all over, the carinal margin conspicuously thickened to 1.5 mm thick, straight to curved. Croat 6049, 7983. Frequent along the shore and in the forest to the top of the canopy; juvenile plants have been seen along trails. Flowering mostly during September and October but sometimes much later and in the early dry season. The fruits mature by January or February and are dispersed in the dry season (to April).