Poepp. subsp. panamensis (Pax & Hoffm.) Webster, Ann. Missouri Bot. Gard. 54:193.1967
D. panamensis Pax & Hoffm.
Monoecious vine, sparsely short-pubescent all over, more densely on petioles and pedicels. Leaves alternate, compound; stipules paired, linear, 5-10 mm long, persistent; petioles 1.5-6 cm long, with 2 small acicular stipels at apex; leaflets 3, ± narrowly elliptic, acute to acuminate, acute to rounded at base, 4-12 cm long, l-3 cm wide, the lateral leaflets markedly asymmetrical, all margins with minute, apiculate teeth. Inflorescences bisexual, axillary; peduncles 1-2 (2.5) cm long; flowers subtended by a pair of involucral bracts, the bracts trilobate, greenish, ca 1.5-2.5 cm long, pubescent on veins and margins; staminate flowers 8 or 9, in a nearly sessile cymule; pedicels articulate, 2-3 mm long; calyx lobes 4 or 5; disk and petals lacking; stamens ca 25, the staminal column minute; pistillate flowers 3, subtended by 2 bractlets ca 3 mm long; calyx lobes 3-11, unequal; disk and petals lacking; ovary densely hispidulous; styles 3, connate, 5-6 mm long; stigma 1, compound, concave, 0.5-1 mm wide. Capsules 6.5-8.5 mm diam, with 3 cocci 5-7 mm long; seeds nearly globose, ca 3-3.5 mm diam, mottled. Croat 7449.
Known only from the Laboratory Clearing in the shade at the edge of the forest. Apparently flowering and fruiting throughout the year, possibly flowering twice.
Guatemala to Peru. In Panama, known from tropical moist forest in the Canal Zone, Colón, and Panama and from premontane wet forest in Panama (Cerro Campana).