Decumbent to prostrate herb, sparsely hairy except stems; stems glabrous, to 50 cm long. Leaves cauline, sometimes decurrent, lanceolate to ovate, auriculate, dentate to narrowly pinnate-lobed; lamina 2.5-7 cm long, 5-13 mm wide. Flowers in racemes to 40 cm long; bracts leaf-like; pedicel 2-5 cm long, ±distinctly articulate; bracteoles absent. Sepals lanceolate to narrowly oblong, 2-4 mm long. Corolla 9-14 mm long, pubescent inside towards base, without enations; abaxial lobes 3-4 mm long; wings c. 1.5 mm wide, laciniate. Indusium broadly oblong, 1 mm long. Ovules 8-10. Fruit compressed-ovoid, 5-6 mm long. Seeds elliptic, c. 3.5 mm long, verrucose, granulose, yellowish.
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