basal shoot
shoot that grows from an adventitious bud on the base of a tree or shrub, or from an adventitious bud on a root
en-GB/ˈbeɪsl ˈʃuːt/
en-US/ˈbeɪsəl ˈʃut/
shoot that grows from an adventitious bud on the base of a tree or shrub, or from an adventitious bud on a root