Terrestrial herb, 5-200 cm tall. Stem succulent, erect, glabrescent, apex puberulous. Leaves equal in a pair; petiole 0.5-5 cm long, puberulous; blade membranous to papyraceous when dry, ovate or oblong-ovate, to 24 x 14.5 cm, margin crenate, apex acuminate, base cuneate or rounded, not decurrent into petiole, above sparsely strigillose, below puberulous, especially on veins. Flowers in 2-7-flowered cymes; peduncle (1-)2-6 cm long, puberulous; pedicel 0.5-2.5 cm long, puberulous. Calyx truncate, infundibuliform, not angled or winged, orange to red, lobes connate into a tube, tube 1-1.5 cm long, free portion of lobes erect, subequal, very small, <0.1 x 0.1-0.2 cm, margin entire, apex acute, outside puberulous, inside glabrous; corolla erect in calyx, red-brown-lined or spotted, 1.8-2.5 cm long, tube cylindric, ca. 1.6 cm long, base somewhat gibbous, 0.2-0.3 cm wide, middle slightly ventricose, throat not constricted, 0.6-0.9 cm wide, outside glabrous below, villous above, inside glandular pubescent, limb 1-1.5 cm wide, lobes subequal, spreading, suborbicular, 0.4-0.5 x 0.4-0.5 cm wide, margin subentire; stamens included, inserted at base of corolla tube; ovary ovoid, 0.2-0.4 x 0.2-0.3 cm, pubescent, style 0.6-0.9 cm long, glabrous, or with a few scattered hairs, stigma 2-lobed. Mature capsule yellow, subglobose, 0.6-0.7 x 0.6-0.7 cm.
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