Ascending to erect, annual herb to 40 cm tall, villous and glandular-hairy. Leaves mostly basal, linear to lanceolate, entire to dentate, sometimes pinnate-lobed; lamina 4-10 cm long, 3-8 mm wide. Flowers in racemes to 10 cm long, or subumbels; bracts leaf-like; pedicel 10-35 mm long, articulate; bracteoles absent. Sepals lanceolate to elliptic, 4-5 mm long. Corolla 15-22 mm long, pubescent in throat, without enations, auriculate; abaxial lobes 6.5-8.5 mm long; wings c. 2 mm wide. Indusium depressed-obovate, 2-2.5 mm long. Ovules c. 30. Fruit subglobular, usually compressed, 7-9 mm diam. Seeds orbicular, 4-4.5 mm diam., colliculate, dark brown to nearly black; wing 1 mm wide, hyaline, thin.
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