The leaves of Nicotiana tabacum are spade shaped or oblong in the lower part of the stem, the base of the leaves is slightly holding the stem or has a winged handle, and the leaves close to the inflorescence are lanceolate.
The stem and leaf of tobacco flowers are covered with a very short layer of sticky villi, and the leaves are light red, light blue or light gray.
The inflorescence of Nicotiana tabacum is pseudoracemose and several flowers are scattered; the pedicel is 5 to 20 mm long, the calyx is cup-shaped or bell shaped, the length is 1.5 to 2.5 cm, the lobes are drilled needle shaped, the tube is 5 to 10 cm long, and the tube diameter is 3 to 4 mm.
The flowers of tobacco flowers are trumpet like, with white, yellow, red or purple colors.
