Lianas to 5 m. Branches and branchlets greenish, terete. Petiole 1-2.2 cm; leaf blade ovate to subovate, 6.5-12 X 3-7 cm, somewhat leathery, base rounded, sometimes decurrent into petiole, glabrous; lateral veins ca. 6 pairs. Cymes up to 20 cm, glabrous, long pedunculate, many flowered. Corolla ca. 1.3 cm, purple or rose, glabrous, tube ca. 6 mm; lobes obovate, slightly longer than tube, reflexed. Ovary glabrous. Style ca. 6 mm, thickened near base; pistil head conical. Follicles 2, linear, to 42 cm X 6 mm. Seeds linear, coma yellowish, to 4.5 cm. Fl. Apr-Aug, fr. Aug-Dec.
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