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Pachyrrhizus erosus (L.) Urban; jicama sylvestre

Coarse herbaceous liana arising from an enlarged edible rootstock; leaves alternate, trifoliolate; leaflets deeply and irregularly lobed, base obtuse to rounded, margin entire, apex obtuse, acute or acuminate; inflorescence a raceme; flowers bluish purple.

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Cultivated forms, known as jicama (Pachyrrhizos tuberosus) difers only slightly from this, the presumed wild ancestor. The roots are crisp, watery and somewhat sweet, commonly consumed raw.