An erect annual, with stems from 5 to 30 cm tall. Basal leaves pinnatifid, forming a rosette; the upper leaves becoming less divided the further up they go. Flowers in a racemose panicle, racemes elongating in fruit. Sepals reddish-tipped, about as long as the petals. Petals 4, white or with pink margins; 1.5 to 2 mm long. Silicula about 6 mm long and 6 mm broad; obcordate.
Local: Rare in Gibraltar; usually as a weed in cultivated areas, but also found along footpaths.
Global: Found throughout the Mediterranean region.
Flowers from March, April, May to June.
Grows on waste ground, cultivated ground and tracksides.