'A bundle' is a group of objects (all the same thing such as a bundle of sticks or different things) which have been tied together or wrapped up in order to make it easier to carry or transport them. We don't use bundle with flowers we use 'bunch' which is a collection of things of the same kind like a 'A bunch of keys'

Bunble means collection of things wrapped or boxed together while bunch refer to grouping of a number of similar things. cowboy...