Annual herb 15–20 cm high, erect, glabrous to scabrous with small tubercules. Leaves narrowly linear, 1.5–5, occasionally to 10, cm long, pinnatisect to entire. Inflorescence an elongating raceme. Sepals to 1 mm long. Petals rudimentary to absent. Stamens 4, median; filaments dilated and contiguous at base. Stigma sessile with lateral projections of style extending slightly beyond it. Silicula dehiscent, broadly ovate to circular, 4.5–5.5 mm long, 4–4.5 mm wide, glabrous; wings uniform around silicula, narrowly extended beyond notch, sometimes overlapping, acute; notch narrow; pedicels 2–3 mm long, spreading, flattened. Seeds c. 2 mm long; radicle incumbent.
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