What is the main characteristic of the ovary in the family $Brassicaceae$ (formerly $Cruciferae$)?

Pulvinus leaf base,vexillary aestivation,and marginal placentation are found in which family?

Which family contains oil-yielding plants?

Distinguish between the families Fabaceae,Solanaceae,and Liliaceae on the basis of gynoecium characteristics. Also,write the economic importance of any one of the above families.

Diadelphous stamens are found in . . . . . . .

The perianth in the family $Gramineae$ (Poaceae) is called ..........