The leaves of Solanum nigrum are oval to oval oblong, 4-8 cm long and 2-4 cm wide. The apex is acuminate, the base is cuneiform, extending down to the petiole and forming wings. Both sides are sparsely pilose and sometimes glabrous. The leaves of Solanum nigrum are ovate, about 2.5-10 cm in length and 1.5-5.5 cm in width. The apex is short and sharp, the base is wedge-shaped, then to broad wedge-shaped, and down to the petiole wingless.
There are 1-6 flowers outside the armpit. The flowers are small, white corolla, 5-lobed, and the lobes are oval lanceolate. The flower of Solanum nigrum is scorpion, with many flowers, up to 10 flowers. The color of corolla is as white as the former, and the lobes are oval.
