| any small mark left on the leaf scar from the vascular tissue, where the leaf was once attached to the stem. |
| bundle scar n. A small mark on a leaf scar indicating a point where a vein from the leaf was once connected with the stem. |
| bundle scar
A small mark on a leaf scar indicating a point where a vein from the leaf was once connected with the stem. Species often differ in the number and placement of the bundle scars within a single leaf scar, and bundle scars are used to identify trees in winter or from twigs without leaves. |