Leaves fall of helping in plant to get rid of accumulated wastes hence known as

The correct option is excretophore.

In plants, excretion of metabolic waste products is carried out differently compared to animals. Plants store many of their waste products in cellular vacuoles, especially within older leaves.
Over time, these metabolic wastes accumulate in the leaves. When the leaves become old and filled with these waste substances, they senesce (age) and fall off the plant. This shedding process effectively removes the accumulated wastes from the plant's body.
Because these leaves accumulate waste materials and are then shed to perform an excretory function, they are specifically termed as excretophores.