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Rorippa indica (Linn.) Hiern, Cat. Afr. Pl. Welw. 1:26 add. et corr. 1896. L.H. Bailey inRhodora, 18:155.1916; Hedge in Rech. f., l.c. 217.
Nasturtium indicum (L.). DC.Sisymbrium indicum L.
Annual or biennial herb, 50-60 (-75) cm tall, sparsely hairy to glabrous (in our area), often much branched above. Leaves similar to the above species but sinuate and toothed, pinnatifid, lyrate to almost entire; upper ones often acute or acuminate with an elongated apex. Racemes elongated, 25-35-flowered, up to 15 cm long in fruit. Flowers c. 2.5 mm across, yellow; pedicels up to 5 mm long in fruit, ascending or subspreading. Sepals 2-2.5 mm long. Petals usually about as long as the sepals, sometimes reduced or suppressed. Stamens c. 1.5:2 mm long. Siliquae usually 10-15 mm long, c. 1.5 mm broad, slender but often slightly up-curved, blunt apexed with c. 1 mm long style and capitate stigma; seeds subbiseriate (or biseriate), minute, c. 0.5 mm long, usually about 100 (or more) in each fruit.
Fl. Per.: April-June.
Type: Described from India.
Distribution: Pakistan, Himalaya, India, Indonesia and Africa.
Sometimes nodal thread-like roots are present below in addition to its main root. There is some overlapping of characters between this and the previous species, except for its annual or biennial habit. However, there are forms which can be placed in both the species.
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