Annual, (5-) 15-60 cm tall, erect, branched from below, ± hispid with short, simple whitish hairs. Lower leaves lyrate-pinnatisect, stalked; upper leaves divided, smaller, shortly stalked. Racemes subcorymbose, 15-30-flowered, bracteate below, becoming lax in fruit. Sepals c. 4 mm long, 1.5 mm broad, open, hardly saccate at the base. Petals c. 7 mm long, 3 mm broad, narrowly spathulate, clawed; pedicel up to 6 mm long in fruit and becoming thick and ± appressed to the stem. Siliquae 20-30 mm long, 2-3 mm broad, biarticulated; upper part about twice (or more) as long as the lower, 3-6-seeded; lower part 1-3-seeded; beak about 4-5 mm long; seed + spherical, c.2 mm in diam., brownish.

Type: Egypt, Giza, Forsskhal (C).

Distribution: Egypt, Arabia, Cyprus, Israel, W. Pakistan.

Fruits superficially resemble some species of Chorispora but its biarticulated condition distinguishes it.