Blackjack Oak (Quercus marilandica) is a native tree in Maryland (Deciduous). The sections below summarize where it grows, how to recognize it, and how it supports local ecosystems.
Habitat and range
Dry barrens, sandy ridges, and poor uplands, more common toward Maryland’s southern coastal plain and piedmont edges.
Identification
Broad, three-lobed leaves resembling a spatula; shrubby to small-tree form; dark scaly bark.
Soil and moisture
Sandy, acidic, droughty; intolerant of shade and wet feet.
Wildlife value
Small acorns still used by scrubland birds and mammals; supports adapted insect communities.
Uses and significance
Sandhill and dry prairie restoration; tough ornamental where soils are impossible for other oaks.