Question

Dispersal+mechanism+of+Burrs

Answer 1

Function. Burs catch on the fur of passing animals or the clothing of people. ... Secondly, plants with burs rely largely on living agents to disperse their seeds; their burs are mechanisms of seed dispersal by epizoochory (dispersal by attaching to the outside of animals)

Answer 2

Burrs are dispersed with the mechanism known as epizoochory. It means dispersal by getting attached to the outside of animals.

Burrs have barbs or other structures on them, which get tangled with the furs of the animals or with the clothes of people passing by. These animals or people then act as the carriers of these seeds and wherever these seeds shed from the body of the animal or from the clothes of people, they grow in a new plant.

Though this mechanism is not promising, as not always the seeds get carried to a place favourable for their growth.