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Edible Portion: Leaves, Seeds - spice, Flowers, Seeds - oil, Vegetable

An erect herb. It re-grows each year. It grows from 30 cm to 2 m tall. The stems are square. Plants can be green or purple. The leaf stalk is 3-5 cm long. The leaves are oval and 4.5-10 cm long by 2.8-10 cm wide. They are toothed along the edge. Leaves are hairy on both surfaces. The flowers are white. They are in equal stalked flower clusters either in the axils of leaves or at the ends of branches. The fruit is a 1-seeded nutlet. There are a range of cultivated varieties.