Definitions for "Bundle scar"
Keywords:  vascular, twig, scar, leaf, leafstalk
mark from vascular bundles left on leaf scar when leaf falls
tiny raised area(s) within a leaf scar, from the broken ends of the vascular bundles, found along a twig.
Within each leaf scar there are one or more bundle scars, each representing a cross-section of vascular bundles that ran from the branch into the petiole when the leaf was attached. The number, shape and pattern of bundle scars can be used to help identify some species.
Keywords:  substructure
substructure
Keywords:  structure
structure