bud scales

Leaves up to 1/2 inch wide, pale yellowish green color, young twigs have white waxy bloom, glabrous or sparsely hairy

Leaves are 6 times longer than wide, persistently pubescent, sometimes entire or nearly so, grayish green color; forms loose thickets; twigs do not have a waxy bloom and are pale pink-red color with a whitish to transparent exfoliating skin

Leaves have a shiny surface, up to 7 3/4 inches long but average 3 inches, serrated to serrulate margin, smooth underneath; petiole has glands at base; male catkins mature before August and the capsule is smooth and up to 1/4 inch long

Leaf has a "U" or heart-shaped base, dark green color that may be shiny or sparsely hairy, leaf blade is typically 2 1/2 to 4 1/2 times longer than the width; twigs are tanish and may be exfoliating

Leaf is 2 to 6 inches long, 1 inch wide. Broadest below the middle. Dark yellowish-green, whitened beneath. Very long pointed, fine toothed, leathery. May have small, kidney-shaped stipules. Petiole very slender, may be twisted, no glands. Leaf may have large, yellow, central vein.