Plants are always herbs in which of the following families?

In the $Fabaceae$ (Papilionoideae) family,the $5$ petals form a distinct arrangement involving $3$ different types of elements: the standard (vexillum),wings (alae),and keel (carina). What is the number of these elements respectively?

Millets belong to which family?

Liliaceae:

Choose the incorrect pair.

Four sepals arranged in two whorls is characteristic of family