I have a job with a String Parameter - BRANCH_NAME

I am running' Pipeline Script from SCM'

I have specified the parameter BRANCH_NAME in the 'Branches to Build' field as an environment variable (i,e ${BRANCH_NAME})

It does not clone that branch - I get an error:
hudson.plugins.git.GitException: Command "git fetch --tags --force --progress --prune – origin +refs/heads/${BRANCH_NAME}:refs/remotes/origin/${BRANCH_NAME}"