Terrestrial herb, less than 10 cm. Stem sappy, decumbent, hirto-pilose. Leaves equal or subequal in a pair; petiole 1-8 cm long, hirsute; blade membranaceous when dry, elliptic or ovate, 5-20 x 3-15 cm, margin crenate-serrate, apex obtuse or acute, base rounded, subcordate, or less often cuneate, above hirto-pilose, below sparsely hirto-pubescentFlowers few to many in cymes; peduncle 1.5-5 cm long, sparsely pilose or glabrous; pedicel 0.3-1.2 cm long, pilose or glabrous. Calyx pale green, lobes free, obovate, gradually narrowed towards base, 1-1.2 x 0.5-0.8 cm, margin conspicuously ciliate, apex obtuse, with 2-5 teeth, outside and inside sparsely and minutely pubescent, dorsal lobe narrower than other 4; corolla oblique in calyx, yellow, 2.6 cm long, tube obliquely infundibuliform, 1.6 cm long, base spurred, 0.3 cm wide, middle curved and becoming wider, throat not contracted, 0.7-0.8 cm wide, outside hirsute in upper half, glabrous in lower, inside partially pubescent with glandular hairs, limb 2 cm wide, lobes subequal, spreading, broadly suborbicular, 0.5 x 0.6-0.7 cm, margin entire; stamens included, inserted on base of corolla tube; ovary ovoid, laterally compressed, 0.3-0.4 x 0.2-0.3 or 0.15-0.25 cm, hirsute except for glabrous base, style 1 cm long, glabrous, stigma large, capitate. Mature capsule light brown, subglobose, laterally compressed, 1 x 0.8-0.9 or 0.6 cm.
French Guiana: endemic Guianas: endemic Guyana, Republic of: endemic
Endemic to the Guianas (Guyana, French Guiana); 63 collections studied (GU: 3; FG: 60).