Among bitter gourd, mustard, brinjal, pumpkin, china rose, lupin, cucumber, sunnhemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, withania, potato, onion, aloe and tulip, how many plants have hypogynous flowers?

Hypogynous flowers (superior ovary) are found in: Mustard, Brinjal, China rose, Chilli, Petunia, Tomato, Withania, Potato, Onion, Aloe, Tulip, Lupin, Sunnhemp, Gram, and Bean. (Total = 15).Plants like Guava, Cucumber, and Pumpkin have epigynous flowers. Plum and Rose are perigynous.