Brassica napus var. napus

Gobhi Sarson is a form of mustard greens which is only found in cultivation. It is an annual herb with stems up to 1.5 m tall. Stems are erect, reddish-purple below, greenish-red above, hairless, arising from large thickened taproot up to 10 cm in diameter. Leaves are alternately arranged and hairless. Lowest leaves are up to 25 cm long, pinnately cut, with small prickles above and below. Middle and upper stem leaves are stem-clasping, glaucous, lanceshaped. Margins are toothed with prickles caused by veins extending beyond leaf tissue. Flowers are borne in racemes at the end of branches, compact in flower, elongating in fruit to 40 cm long. Flower-stalks are 5-6 mm long, elongating in fruit to 1.5 cm long, 1 mm in diameter. Flowers have 4 petals, 4-5 mm broad at the tip, blunt, yellow, up to 1cm long, clawed. Stamens are 6, erect. Longer 4 stamens with filaments to 4.5mm long, white, glabrous. Shorter stamens with filaments to 2mm long. Anthers are yellow, 2mm long. Ovary 4.5mm long, slightly flattened, glabrous. Style is 2 mm long, persistent in fruit as beak. Sepals are 4, yellow, 1.5mm broad, 6mm long, linear, spreading to erect. Flowering: April-September.