Describe the non-essential floral parts of plants belonging to Fabaceae.

Explanation

The non-essential floral parts are calyx and corolla.
Calyx : Sepals five in number, Gamosepalous (sepals united), valvate aestivation. The odd sepal is anterior-in position.
Corolla : Petals five in number, Polypetalous (Petals are free), descending imbricate aestivation. Corolla is Papilonaceous. The posterior petal is the largest and is called .Vexitlum or Standard Petal.. The two lateral petals are called .Wings or Alae.. The two boat shaped petals beneath the wings on the anterior side are called .Keel or Carina.. The keel petals are fused and enclose the essential organs.