Arabis sinaica Boiss.
Annual, 10-30 cm tall, pubescent with short stellate hairs, sometimes glabrous above, erect, with single stem and 3-10 distant leaves. Basal leaves few, spathulate or oblong-obovate, 5-30 mm long, (2-) 5-20 mm broad, bluntly toothed to sub-entire, stalked, obtuse, pubescent; cauline leaves ovate or ovate-oblong, 5-20 mm long, 2-15 mm broad, toothed to entire, ± auricled at base, amplexicaul, acute, basal lobes obtuse. Racemes 5-10-flowered, lax, up to 10 cm long in fruits. Flowers 3-4 mm across, white; pedicels up to 5 (-7) mm long in fruit, somewhat thickened (usually about as thick as the fruits). Sepals 1.5-2 mm long. Petals 3-4 (-4.5) mm long, c. 1 mm broad. Stamens c. 2:2.5 mm long. Siliquae 20-30 (-45) mm long, 1-1.5 mm broad, linear-oblong, often straight, compressed, usually ± minutely pubescent with stellate hairs (rarely glabrous), acute; valves 1-veined; style obscure with minute, depressed, subseissile stigma; seeds 10-15 (-20) in each locule, c. 1 mm long.
Fl. Per.: April -June.
Type: France, Dauphine, M. Lictard (P).
Distribution: Europe, C. and S.W. Asia to Afghanistan and Pakistan.
Variable in flower size, pedicel length and hairiness.