Erysimum sisymbrioides C. A. Mey.

It may be confused with the previous two species as already pointed out above. Rechinger f. (l.c. 304 and 305) included Duthie 8589 under this species as well as under Erysimum repandum. Its slightly smaller flowers, short, erect, often sub-appressed or ascending siliquae with only 2-partite hairs are distinctive.

Annual, (5-) 10-30 (-40) cm tall, erect, sparsely branched or simple, appressedly hairy with bipartite hairs only. Leaves oblanceolate or oblong-spathulate, entire, lower stalked, upper sessile, 10-50 mm long, 2-8 mm broad, obtuse. Racemes 5-15 (-25) - flowered, up to 15 (-20) cm long in fruit. Flowers c. 3 mm across, yellow; pedicels inconspicuous, c. 1 (-1.5) mm long and thickened in fruit, suberect or ascending. Sepals c. 2.5 mm long. Petals 3-4 (-5) mm long, 1 mm broad. Stamens c. 2: 3 mm long; anthers c. 0.7 mm long. Siliquae linear-terete or subcylindrical, (15-) 20-25 (-30) mm long, 1-1.5 mm broad, often straight, subtorulose, appressedly hairy; valves with a distinct mid-rib; stigma sub-bibbed, capitate, subsessile or sessile; seeds 10-15 in each locule, c. 1 mm long, ellipsoid, brown.

Herbs annual, (2-)8-25(-40) cm tall. Trichomes malpighiaceous throughout. Stems erect, simple or branched above. Basal leaves not rosulate, soon withered; lowermost and middle cauline leaves with petioles 3-10(-15) mm, rarely subsessile; leaf blade oblanceolate, oblong, or oblong-spatulate, (0.8-)1-4(-5) cm × (1-)2-5(-8) mm, base attenuate or cuneate, margin entire, apex obtuse. Upper cauline leaves sessile, usually smaller than basal. Racemes corymbose, densely flowered, ebracteate, elongated considerably in fruit. Fruiting pedicels erect, 0.5-1.5(-2) mm, stout, about as wide as fruit. Sepals linear-oblong, 2.2-3 × ca. 0.5 mm, not saccate. Petals yellow, linear, 3-4(-5) × 0.3-0.6 mm, apex obtuse; claw not differentiated from limb. Filaments yellow, 1.5-2.5(-3) mm; anthers oblong, ca. 0.5 mm. Ovules 16-40 per ovary. Fruit narrowly linear, terete, (1.3-)1.7-2.2(-2.5) cm × 0.7-0.9 mm, somewhat torulose, erect or ascending, straight; valves with obscure midvein, outside with malpighiaceous trichomes, inside glabrous; style stout, 0.5-1(-1.5) mm, cylindric, sparsely pubescent; stigma entire. Seeds oblong, 0.8-0.9 × 0.4-0.5 mm. Fl. May-Jun, fr. Jun-Jul. 2n = 18.

Distribution: C. & S. W. Asia, Turkey, Iran, Afghanistan and Pakistan.

Xinjiang [Afghanistan, Kazakhstan, Kyrgyzstan, Mongolia, Pakistan, Russia, Tajikistan, Turkmenistan, Uzbekistan; SW Asia].

Fl. Per.: April-June.

Grasslands; 700-4000 m.