White potatoes are annual herbs with round, oval or fusiform underground roots, the shape, skin color and flesh color of which varies according to the variety or soil. The stem is procumbent or ascending, occasionally twining, much branched, cylindrical or angular, green or purple, sparsely pilose or glabrous, and the nodes of the stem are prone to produce adventitious roots. Leaf blade shape and color often vary according to varieties, also sometimes on the same plant with different leaf shape, usually broadly ovate, 4-13 cm long, 3-13 cm wide, entire or 3-5(~7)-lobed, lobes broadly ovate, triangular-ovate, or linear-lanceolate, leaf blade base cordate or nearly plane-truncated, apical acuminate, both surfaces sparsely pilose or nearly glabrous, leaf color has a strong green, yellow-green, purple-green, etc., the top leaves of the Color is one of the characteristics of the species; petiole length varies, 2.5-20 cm, sparsely pilose or glabrous. Cymes axillary, with 1-3-7 flowers gathered into umbels, peduncles 2-10.5 cm, slightly stout, glabrous or sometimes sparsely pilose; bracts small, lanceolate, 2-4 mm, apically awned or cuspidate, caducous; pedicels 2-10 mm; sepals oblong or elliptic, unequal, outer sepals 7-10 mm, inner sepals 8-11 mm, apically cuspidate into an awned tip. glabrous or sparsely ciliate; corolla pink, white, lavender or purple, campanulate or funnelform, 3 to 4 cm long, glabrous outside; stamens and style included, filament base hairy; ovary 2 to 4-locular, hairy or sometimes glabrous.