Description from Flora of China
Herbs annual, often glaucous. Trichomes simple, straight on pedicels, hooked on fruit, absent elsewhere. Stems erect, simple from base, branched apically. Basal leaves petiolate, not rosulate, simple, entire. Cauline leaves sessile, auriculate, sagittate, or amplexicaul at base, entire. Racemes few to several flowered, ebracteate, elongated in fruit. Fruiting pedicels nearly filiform, strongly recurved, articulate and often detached from base. Sepals oblong, base of lateral pair not saccate, margin not membranous. Petals yellow drying whitish, longer than sepals; blade narrowly spatulate or oblong, apex obtuse; claws absent. Stamens 6, slightly tetradynamous; filaments not dilated at base; anthers broadly ovate, apiculate at apex. Median nectar glands present; lateral glands 1 on each side of lateral stamen, annular. Ovules 1(or 2) per ovary, apical. Fruit indehiscent, samaroid silicles, navicular and semiovoid to semiglobose, rounded abaxially, flat adaxially, strongly angustiseptate, sessile, glabrous or densely pilose with hooked trichomes, beaked; valves papery, veinless, strongly keeled, smooth, strongly 2-winged, wing margin involute and with 1 or 2 rows of tubercles; replum rounded; septum absent; style obsolete; stigma capitate, entire. Seeds 1 per fruit, wingless, oblong, plump; seed coat smooth, not mucilaginous when wetted; cotyledons incumbent.
One species: C and SW Asia, W Himalayas.