Ascending herb to 35 cm tall, with antrorse, simple hairs and more glandular hairs towards the top. Basal leaves narrowly oblong to lanceolate, with lamina 4.5-12 cm long, 5-14 mm wide; cauline leaves sessile, smaller, often auriculate. Flowers in racemes to 28 cm long; bracts leaf-like; pedicel 10-20 mm long, not articulate; bracteoles absent. Sepals oblong to elliptic, 2.5-3 mm long. Corolla 8-12 mm long, hairy towards base inside, without enations; abaxial lobes 3-4 mm long; wings c. 1.5 mm wide. Style 3-fid. Median indusium sessile, square, 1 mm long, lateral ones smaller. Ovules 12-18. Fruit globular, 3-4 mm diam.; valves eventually gaping. Seeds elliptic, 2 mm long, verrucose, yellowish brown.