Common Trees in Michigan: Identification Guide

Eastern White Pine (Pinus strobus)

Eastern White Pine is Michigan's state tree and the symbol of the logging era that transformed the state's economy and landscape in the 19th century. Michigan's white pine forests were among the most extensive in the world, and their logging between 1850 and 1910 produced enough lumber to build several million homes. Today, second-growth and planted White Pine stands are reclaiming much of the cutover land in the northern Lower Peninsula and Upper Peninsula, and a few cathedral-like old-growth stands survive in the Porcupine Mountains Wilderness State Park. White Pine is distinguished by its soft, bluish-green needles in bundles of five and its long, gracefully curved cones.

Where to find it: Sandy soils, rocky ridges, and mixed forests throughout northern Michigan

How to identify it:

• Soft, flexible, blue-green needles in bundles of 5
• Long, slender, slightly curved cones, 4–8 inches, often with resin
• Smooth, greenish-gray bark on young trees becoming deeply furrowed and dark with age
• Tall crown with horizontal, layered branches forming a distinctive flat-topped silhouette in old trees

Sugar Maple (Acer saccharum)

Sugar Maple is the backbone of Michigan's tourism economy, drawing visitors from across the Midwest to the Upper Peninsula and northern Lower Peninsula each October for fall foliage. Michigan ranks among the top maple syrup-producing states, and the Sugar Maple is celebrated at festivals throughout the northern counties each spring sugaring season. The tree dominates the upland forests of much of Michigan's Lower Peninsula in a beech-maple forest association that represents the climax community for much of the state. Michigan's Sugar Maples face increasing stress from climate change, with the southern edge of their range retreating northward as winters moderate.

Where to find it: Well-drained upland forests, hillsides, and mixed hardwood stands statewide

How to identify it:

• Five-lobed leaves with smooth sinuses (rounded between the lobes) and pointed tips
• Paired samaras (winged seeds) spreading at nearly 180 degrees
• Gray-brown bark developing shaggy, irregular plates and ridges on mature trees
• Opposite branching and pointed, brown, scaly buds on winter twigs

Paper Birch (Betula papyrifera)

Paper Birch is the iconic tree of Michigan's Upper Peninsula, its brilliant white bark making it immediately recognizable against the dark spruce-fir forest background, especially in winter. It is a pioneer species that rapidly colonizes burned and disturbed areas, and the vast swaths of Paper Birch across the Upper Peninsula reflect the legacy of 19th-century logging and subsequent fires. Paper Birch was a foundation species for many Native American cultures in the Great Lakes region — the Anishinaabe used its bark for canoes, containers, and shelter. The trees are relatively short-lived compared to hardwoods, typically living 60–80 years before succumbing to bronze birch borer and heart rot.

Where to find it: Burned areas, logged-over land, lake shores, and boreal forest openings

How to identify it:

• Brilliant white, papery bark that peels in horizontal strips — most distinctive of any Michigan tree
• Triangular to ovate, doubly toothed leaves on slender petioles
• Small, cylindrical, drooping catkins releasing tiny winged seeds in late summer
• Triangular black marks and horizontal lenticels on the white bark

American Beech (Fagus grandifolia)

American Beech is one of Michigan's most ecologically important forest trees, forming a dominant co-canopy species with Sugar Maple across the southern two-thirds of the Lower Peninsula. Its smooth, silver-gray bark is unmistakable and unfortunately irresistible to people carving initials, a habit that creates entry points for disease organisms. Michigan's beech forests are facing a serious threat from Beech Leaf Disease, which was first detected in northeastern Ohio and has now spread throughout Michigan, causing leaf distortion and canopy decline in affected trees. Beechnuts are a critical autumn food source for black bears, white-tailed deer, and small mammals.

Where to find it: Mesic upland forests, fertile slopes, and mature woodland interiors

How to identify it:

• Smooth, silver-gray bark that never develops rough texture even on very old trees
• Leaves with sharp, straight-toothed margins and prominent parallel veins
• Long, slender, sharply pointed copper-tan buds in winter
• Small, triangular beechnuts in a spiny, four-parted husk

Northern Red Oak (Quercus rubra)

Northern Red Oak is Michigan's most commercially important hardwood, widely logged for flooring, cabinetry, and furniture throughout the state. It is also the dominant oak across much of the Lower Peninsula's upland forests, more common than White Oak in the cooler, northern parts of the state. Red Oak's lobed leaves with distinctive bristle-tipped lobes distinguish it from White Oak at a glance, and its large, flattened acorn caps are another useful field mark. The tree turns a rich russet-red to brick-red in autumn and is a prominent contributor to the Lower Peninsula's fall color display in October.

Where to find it: Upland forests, hillsides, and dry to mesic sandy soils throughout the Lower Peninsula

How to identify it:

• Leaves with 7–11 pointed, bristle-tipped lobes and deep sinuses
• Large, flat, shallow-saucered acorn cap covering only the base of the nut
• Bark with smooth, gray, shiny upper trunk and flat-topped ridges ('ski trails') lower down
• Russet-red to brick-red fall color

Tamarack (Larix laricina)

Tamarack is Michigan's only deciduous conifer, a unique and spectacular tree that turns brilliant golden-yellow and drops its needles each autumn, providing one of the most surprising fall color displays in the state's northern bogs and wet forests. It is a defining tree of Michigan's Upper Peninsula peatlands, growing in association with Black Spruce, Leatherleaf, and Sphagnum moss in acidic, nutrient-poor bogs. Tamarack is one of the most cold-hardy tree species in North America, capable of surviving temperatures below -65°F. Identifying Tamarack is straightforward: look for soft, blue-green needles arranged in dense tufts on short spur shoots, and tiny, upright cones less than an inch long.

Where to find it: Sphagnum bogs, peatlands, and wet, cold, acidic soils in northern Michigan and the UP

How to identify it:

• Soft, deciduous needles in dense tufts (clusters of 10–20) on short spur shoots
• Brilliant golden-yellow fall color before needle drop in October
• Tiny, upright, oval cones less than 1 inch long
• Found almost exclusively in bogs and wet, acidic soils in northern Michigan

Quaking Aspen (Populus tremuloides)

Quaking Aspen is Michigan's most widely distributed tree, found in every county from the Downriver suburbs of Detroit to the remote reaches of the Upper Peninsula. Its name comes from the distinctive trembling of its round, flat-stalked leaves in the slightest breeze, producing a shimmering, fluttering effect unique among Michigan trees. Aspen spreads prolifically by root sprouts following fire or logging, forming vast clonal colonies — some covering hundreds of acres — in which all trees are genetically identical. In the Upper Peninsula, Aspen is a critical habitat tree for American Woodcock, Ruffed Grouse, and moose, which browse its bark and twigs heavily in winter.

Where to find it: Burned areas, logged-over lands, roadsides, and disturbed sites statewide

How to identify it:

• Round leaves on flattened petioles that cause constant trembling in the wind
• Smooth, pale greenish-white to cream-colored bark on upper trunk and branches
• Catkins (cotton-producing seed structures) releasing fluffy white seeds in late spring
• Often found in large, even-aged clonal stands following fire or logging

Autumn Olive

Autumn Olive (Elaeagnus umbellata) is an invasive shrub-tree from Asia that has colonized roadsides, old fields, and forest edges across Michigan's Lower Peninsula. It fixes nitrogen in the soil, which paradoxically allows it to outcompete native plants adapted to lower-fertility soils, fundamentally altering soil chemistry. Its abundant red berries are eagerly consumed and spread by birds, making eradication on a landscape scale virtually impossible.

Glossy Buckthorn

Glossy Buckthorn (Frangula alnus) is one of the most aggressive invasive shrub-trees in Michigan, spreading rapidly through wetlands, forest edges, and open woods from the Lower Peninsula northward. It leafs out earlier than native species in spring and holds its leaves later in fall, allowing it to outcompete native vegetation through an extended growing season. Glossy Buckthorn is especially damaging in Michigan's northern forest, where it forms dense understory thickets that prevent native tree regeneration.

Black Locust

Black Locust (Robinia pseudoacacia) is native to the Appalachians but invasive in Michigan, where it has colonized sandy soils, roadsides, and disturbed upland sites across the Lower Peninsula. It spreads aggressively by root sprouts and nitrogen-fixing ability, altering soil chemistry and displacing native oak savanna and dry prairie communities. Its fragrant white flowers in late May are attractive, but the tree's ecological impact in Michigan's sensitive sand barrens and oak openings is severe.

What trees are unique to Michigan's Upper Peninsula?

The Upper Peninsula supports several species at or near the southern edge of their boreal range, including Black Spruce, Jack Pine, Tamarack, and Northern White Cedar. The UP's Porcupine Mountains contain old-growth Northern Hardwood and Hemlock-White Pine forests rarely seen elsewhere in the Great Lakes region. Species such as Mountain Maple and Striped Maple, found in cool ravines and shaded slopes of the UP, are largely absent from most of the Lower Peninsula.

Where can I see old-growth forest in Michigan?

Michigan's finest old-growth remnants include Hartwick Pines State Park near Grayling, which protects a 49-acre grove of virgin Eastern White Pine, and the Porcupine Mountains Wilderness State Park, with the largest old-growth forest in the Great Lakes region. The Estivant Pines near Copper Harbor on the Keweenaw Peninsula is another spectacular old-growth White Pine stand, with trees exceeding 100 feet and over 200 years old.

What is Michigan's most endangered tree species?

The American Elm, once a dominant street and park tree across Michigan, has been decimated by Dutch Elm Disease and is now rarely found as a mature tree. American Chestnut was functionally eliminated from Michigan by the Chestnut Blight in the early 20th century. Currently, American Beech faces a serious emerging threat from Beech Leaf Disease, which has caused severe canopy decline across much of the Lower Peninsula and threatens the state's beech-maple forest communities.