Herb to 1 m tall. Stems woody below, with prominent lf-base scars, densely covered with parallel medifixed appressed hairs. Lvs lanceolate to linear-lanceolate, tapering to base, entire or minutely and distantly toothed, acute to acuminate, (2)-5-10 × (0.5)-1-3 cm, densely hairy with parallel medifixed hairs; stem lvs crowded. Racemes 10-30 cm long. Sepals hairy, 8-12 × 1-3 mm. Petals usually yellow to orange, sometimes red or brownish, (12)-18-25 × 8-12-(15) mm. Pedicels 10-15 mm long. Silique slightly flattened, linear, (30)-40-80 × 3-6 mm; valves distinctly 1-veined. Seeds pale brown, shortly winged at apex, c. 3 mm long, in 1 row or 2 irregular rows per locule.