Eremoblastus Botschantzev, Bot. Zhurn. (Moscow & Leningrad) 65: 425. 1980.
Ihsan A. Al-Shehbaz
Name derivation: from Greek eremo, desert or uninhabited area, and blast or blasto, shoot, in reference to the habit and habitat of the plant.
Type species: E. caspicus Botschantzev.
Herbs annual, pubescent throughout. Trichomes short stalked to subsessile, stellate, with 5−10 rays, simple trichomes absent. Multicellular glands absent. Stems stout, branched. Basal leaves soon withered; cauline leaves petiolate, simple, sinuate-dentate or dentate. Racemes ebracteate, elongated in fruit; fruiting pedicels divaricate-ascending, stout and nearly as thick as fruits, persistent. Sepals oblong, erect, deciduous, stellate, equal, lateral pair subsaccate. Petals yellow, erect with flaring blade, longer than sepals; blade undulate, linear; claw differentiated from and as wide as blade, nearly as long as sepals, glabrous, unappendaged, entire. Stamens 6, exserted, tetradynamous, erect; filaments wingless, unappendaged, glabrous, free; anthers linear, not apiculate. Nectar glands lateral, semi-annular, extrastaminal, median nectaries absent. Ovules 36−44 per fruit. Fruit tardily dehiscent siliques, linear, quadrangular to quadrangular-terete, not inflated, unsegmented; valves thick, corky, with a distinct midvein and thicker, indurated marginal veins, finely stellate, not keeled, torulose, wingless, unappendaged; gynophore obsolete; replum flattened, nearly as wide as valves; septum complete, thick, with a central midvein; style stout, pubescent, persistent; stigma 2-lobed, lobes erect, subconnivent, opposite replum, unappendaged. Seeds uniseriate, broadly oblong, flattened, winged; wing continuous, narrow; seed coat very minutely reticulate, not mucilaginous when wetted; cotyledons incumbent.