A student observes a flower and notes that the gynoecium occupies the highest position on the thalamus while the other parts are situated below it. Furthermore, upon taking a transverse section of the ovary, the ovules are found attached to a multilocular ovary's central axis. Which of the following plants exhibits both of these characteristics?

Step-by-step solution

The question describes a flower with a superior ovary (gynoecium occupies the highest position, typical of hypogynous flowers) and axile placentation (ovules attached to a central axis in a multilocular ovary). Mustard has a superior ovary but exhibits parietal placentation. Dianthus has a superior ovary but exhibits free central placentation. Cucumber has an inferior ovary (epigynous flower) and parietal placentation. China rose has both a superior ovary and axile placentation. Thus, China rose correctly matches b