Pentamerous actinomorphic flowers, bicarpellary ovary with oblique septa, and fruit capsule or berry are characteristic features of family

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A pentamerous actinomorphic flower is one where the floral parts are in multiples of five and the flower can be divided into two equal halves in more than one plane. The gynoecium is bicarpellary, syncarpous, forming a superior bilocular ovary. Each locule has many ovules on axile placentation. Members of Solanaceae are characterized by the presence of an obliquely placed septum in the ovary and highly swollen placentae. The oblique septum is probably due to shifting in the position of the ovary.