Erysimum longisiliquum Hook. f. & Thomson in J. Linn. Soc., Bot. 5: 166. 1861; Hook. f. & T. Anderson in Fl. Brit. India 1: 154. 1872.

Herbs, robust, erect, up to 80 cm high, glabrous; stems acutely angled. Leaves lanceolate or oblanceolate, obscurely toothed. Flowers ca 1 cm across; pedicels 0.5 - 1.5 cm long in fruit. Style 2 - 3 mm long, stout. Fruits spreading, linear, 8 - 12 x 0.3 cm; valves with prominent keel.

Fl. & Fr. May - June.

Distrib. India: In Eastern Himalayas, 3050 - 3950 m. Sikkim.

Bhutan.