Herbs glabrous throughout. Stems to 2 m; internodes terete, longitudinally wrinkled, 6-9 cm. Petiole 1-2 mm; leaf blade ovate-elliptic, 1.8-2 × ca. 1.5 cm, yellow to straw colored when dry, flat, thick, base broadly cuneate or rounded, apex obtuse or rarely submucronate; midvein slightly elevated; lateral veins ca. 4 pairs, inconspicuous. Pseudumbels flat topped; peduncle ca. 1 mm. Pedicel ca. 1.5 mm. Sepals ovate. Corolla white, urceolate, ca. 3.5 × 2 mm; tube ca. 2 mm, throat constricted and thickened; lobes ovate-triangular, ca. 1 × 0.5 mm, apex 3-angled. Corona lobes anchor-shaped, stalked, apex 2-cleft, widely divergent, sinus of divaricate arms without a papilla; lateral arms oblong, recurved at both ends. Follicles linear, 5-6 cm × ca. 2 mm. Seeds oblong; coma ca. 2 cm. Fl. Mar-May, fr. Jul-Dec.
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