$I.$ Standard petals $II.$ Wing petal $III.$ Keel petals
Above petals are found in
Valvate aestivation
Twisted aestivation
Imbricate aestivation
Vexillary aestivation
A characteristic of angiosperms is
When the anthers do not possess pollen grains at all, these are known as
The flower of which of the following plant is zygomorphic?
Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicum, sweet pea, Petunia, Indigofera, mustard, soybean, tobacco and groundnut, how many plants have corolla with valvate aestivation?
Placentation, In which ovules develop on the inner wall of the ovary or in peripheral part, is