A. Lenticels, breathing pores in the young bark of a woody stem. B. Leaf scars remain on a stem after the leaves have fallen. The circles within each scar are the severed ends of food- and water-conducting bundles. Scattered lenticels dot the stem between leaf scars. C. A dormant bud is encased in glossy bud scales for the winter’s duration. D. The new growth of spring pushes aside the bud scales.
