Slender, glabrous vine. Petioles to 5 cm long; blades pinnately divided, to 9 cm long and 6 cm wide, the lobes linear, ca 0.5 mm wide. Flowers solitary or clustered 2-5 per cyme on long axillary peduncles to 9 cm long; sepals 5, unequal, 4-8 mm long, 3-ribbed, with mucronate tips; corolla red, 2.5-3 cm long, the tube less than 4 mm wide, the lobes 5, acute; stamens 5, unequal, the longest nearly equaling lobes; filaments pubescent in basal third, fused to tube near base; style equaling longest stamen, coiled and much longer than stamens in bud; stigma globular. Capsules ovoid, 6-8 mm diam; seeds 4, black, with patches of short trichomes. Croat 4153.