Legume-producing plants belong to which family?

The plants 'Raat ki Rani' (Cestrum nocturnum) and Tomato belong to the family:

What is the scientific name of $Solanum$ $lycopersicum$ (formerly $Lycopersicon$ $esculentum$)?

Which of the following families has the widest geographical distribution?

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?

Potato and tomato are native of: