How many stamens does a flower have?
The number of stamens in a flower varies in different plants, being always same for a specific plant.
The number of stamens per flower is not same in all plants. It varies from one to numerous per flower. The number is mostly fixed for all plants in a particular family in Angiosperms.
The number is 6 in family Cruciferae and Liliaceae , 5 in Solanaceae, 10 in Caesalpiniodeae and Papilionaceae , numerous in Mimosoideae, etc.
The stamens are mostly multiple of 3 in monocot families and multiple of 5 in dicot families, with exceptions.