Identify the plant whose flowers possess a superior ovary and exhibit parietal placentation.

Step-by-step solution

Flowers with a superior ovary are termed hypogynous. Examples include mustard, china rose, and brinjal. In parietal placentation, ovules develop on the inner wall of the ovary or on the peripheral part. Examples include mustard and argemone. Therefore, mustard exhibits both a superior ovary and parietal placentation. Pea has marginal placentation. China rose has axile placentation. Sunflower has an inferior ovary (in ray florets) and basal placentation. Answer: Mustard