A very small perennial prostrate herb, branched from the base; branches very slender, creeping, often short, but sometimes nearly 1 ft. long, more or less strigose. Leaves opposite, obovate-oblong, oblong-elliptic or sometimes lanceolate, 3–5 lin. long including the very short petiole, 3/4–1 3/4 lin. broad, obtuse, sparingly strigose on the underside of the midrib and along the margins, somewhat horny along the margins. Flowers few, axillary at the base of the branches; peduncles 1/2– 3/4 lin. long; bracteoles 2, ovate-spathulate, obtuse, about 3 lin. long and 1 lin. broad. Calyx tubular, 6–7 1/2 lin. long, about 1 1/2 lin. broad, 10-ribbed or -nerved, very sparingly strigose chiefly along the margins of the lobes, slightly curved; lobes oblong-lanceolate, obtuse, 2 1/2–3 lin. long, 3/4 lin. broad. Corolla-tube 11–15 lin. long, 3/4 lin. broad below, slightly curved and inflated at the apex, rather densely-glandular pubescent, densely bearded at the throat inside; limb 3/4–1 in. in diam., rather firm in texture, 4-lobed; lobes broadly obovate, 4 1/2–7 lin. long, 4–8 lin. broad, densely and prominently veined, the upper slightly emarginate and broader than the others. Anthers oblong, about 3/4 lin. long; filaments glabrous. Style 2/3–1 in. long, clavate at the apex. Capsule oblong, somewhat compressed, subtruncate, as long as the calyx.
