Shrub or subshrub to 1 m tall; stems simple or sparingly branched, flattened apically, glabrous to densely clothed with appressed and uncinate hairs. Leaves unifoliolate, petiolate, linear, narrowly elliptic or ovate, mostly 4-12 cm long, 0.5-2 cm wide, reticulate, with scattered, uncinate hairs above and occasionally below, or with scattered, appressed hairs below especially on midrib. Stipules narrowly triangular or subulate, usually persisting for some time. Racemes 3-many-flowered, usually shorter than the subtending leaf. Sepals usually 5, becoming reflexed; outer two 6.5-10 mm long, 2.4-3.8 mm wide, sparingly to densely clothed with uncinate and sometimes scattered, appressed hairs. Petals 4. Anthers ±equal in length, 3.8-5.5 mm long. Pod 2.3-3.3 cm long, 0.9-1.4 cm wide. Seeds 5-5.5 mm long, 3.75-4.5 mm wide.
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