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The plant is a perennial herb with an erect stout rootstock and alternate ovate or ovate-oblong obtuse or sub-acute entire or toothed nearly glabrous leaves. The leaves are tapering and decurrent into the petiole and are commonly 7 nerved. The flowers are borne scattered or crowded in long slender rather lax spikes, 5-15 cm long. The capsule is ovoid, 3-4 mm long and glabrous. The seeds are 4-8 angled, rugulose and dull black with usually 8-16 seeds in a capsule. The plant is native to the Mediterranean region and West Asia. In India it grows in Kumaun region of Uttaranchal, Uttar Pradesh and Punjab. The reproductive cycle of this species is form June- October. The aerial part including the leaves, seeds are harvested and seeds are separated out carefully and dried under sun.
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