How to Identify Mulberry Tree Leaves: A Field Guide

Overview

The mulberry genus (Morus spp.) includes several species: white mulberry (China), black mulberry (western Asia), and red or American mulberry (eastern U.S.). All produce edible, berry-like fruit clusters. While white mulberry can reach 80 feet and black mulberry stays around 30 feet, leaf identification can be tricky since foliage is the least distinctive feature. A regional tree guide is recommended for confirmation.

Step 1: Note Leaf Color and Texture

Mulberry leaves are glossy, light green. White mulberry leaves are thin; red mulberry leaves are slightly thicker. Dimensions reach up to 5 inches wide by 7 inches long, with black mulberry leaves being somewhat smaller.

Step 2: Observe Shape and Margins

Leaves are generally heart-shaped (cordate) with a slightly rough upper surface. Red mulberry leaf edges are distinctly serrated, like a saw blade.

Step 3: Track Leaf-Out Timing

White mulberry leafs out in early spring, red mulberry in mid-spring, and black mulberry in late spring to early summer—a useful seasonal clue.

Step 4: Examine Lobing Patterns

All three species produce lobed leaves, but white mulberry shows extreme variability, with multiple lobe patterns on a single tree and some leaves entirely unlobed.

Step 5: Check Bud Color

White mulberry has distinctively white buds. Red and black mulberry are named for their fruit color, not their buds.