Botanical Survey of India | Flora of India

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Herbs, annual, biennial or perennial, glabrous or hairy. Leaves entire, pinnatifid or pinnatisect, lower petiolate, upper sessile or subsessile. Racemes many-flowered, elongated in fruit. Flowers usually yellow; pedicels more or less thickened. Sepals erect. Petals 4, unguiculate with long claws, usually oblong-obovate. Stamens 6, free; filaments simple; anthers oblong or obtuse. Lateral nectar glands annular, quadrate or hexangular. Ovary linear-subcylindrical, sessile, many-ovuled; style short. Fruits linear-sabcylindrical, erect or spreading; valves 3-nerved, usually glabrous; septum hyaline. Seeds 1-seriate, many, ovoid; cotyledons incumbent.

Mostly temperate; about 70 species, 7 in India.

Literature. KHOSHOO, T. (1967) Biosystematics of Sisymbrium irio complex XIII: Taxonomic considerations. Bull. Bot. Surv. India 9: 49 - 55, f. 1.



KEY TO THE SPECIES


1a. Fruits usually 1 - 4.5 (-5) cm long 2
b. Fruits 5 - 10 cm long 4
2a. Pedicels 2 - 4 mm long in fruit 6. Sisymbrium officinale
b. Pedicels 6 - 15 mm long in fruit 3
3a. Flowers ca 3 mm across 4. Sisymbrium irio
b. Flowers ca 6 - 8 mm across 5. Sisymbrium loeselii
4a. Flowers ca 3 mm across; pedicels 0.5 - 1.5 cm long 3. Sisymbrium heteromallum
b. Flowers 5 - 6 mm across; pedicels 3 - 12 mm long 5
5a. Lower leaves runcinate-pinnatifid, lateral lobes 6 - 8 paired 1. Sisymbrium altissimum
b. Lower leaves 1 - 5-jugate 6
6a. Lower leaves 1 - 2-jugate 2. Sisymbrium brassiciforme
b. Lower leaves 4 - 5-jugate 7. Sisymbrium orientale


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