Which of the following plants possesses the largest flower?

In higher plants,flowers are considered the primary basis for classification because:

The condition where filaments and anthers are fused throughout their entire length is known as:

Define the following term:
$Epipetalous$ $Stamen$

The arrangement of floral leaves (sepals and petals) in a floral bud with respect to the other members of the same whorl is called:

Aestivation of corolla in Pea is