Glossary of Forestry Terms

A harvesting approach aimed at older stands where the focus is on removing trees to speed up regeneration or improve the growth of remaining trees rather than simply maximizing current volume.

The practice of managing or restricting vehicle and equipment access to a property or harvest site to protect roads, soil, and water resources.

A permanent or temporary road built to reach a timber harvest area, usually constructed to handle equipment and log trucks without damaging the site.

A structured approach to land and forest management that uses monitoring and feedback to adjust practices over time.

Young trees or seedlings already present in a stand before a major harvest. They help ensure the forest will regenerate naturally without needing to plant new trees.

Planting trees in an area that was not previously forested.

A land-use management system that combines the cultivation of trees with crops or raising livestock to create environmental and economic benefits.

A natural chemical process by which certain plants release compounds into the soil that inhibit the growth of other plants nearby.

American beech is a common Ohio hardwood tree known for smooth gray bark, dense shade, and hard, pale wood with modest timber value.

A fast-growing, broadleaf deciduous tree commonly found along rivers, floodplains, and low-lying woods in Ohio. Known for its distinctive peeling bark, which reveals patches of white, gray, and green, American sycamore is one of the largest native hardwoods in the state, often reaching over 100 feet tall.  Its dense canopy offers shade and cover for wildlife, while young trees and stump sprouts can provide woody browse for whitetail deer. Though not a highly valuable timber species due to its tendency to warp, it is sometimes used for pallets, crates, and interior paneling. Sycamores thrive in wet, fertile soils and are a key component of Ohio’s riparian forests. The largest specimen known in Ohio is located Ashland County.

The volume of timber that can be harvested from a forest each year without reducing its long-term productivity.

A layer of wood produced each year in a tree’s growth. Counting these rings is a common way to estimate a tree’s age.

The process of replanting trees in a forest using seedlings or seeds, as opposed to relying on natural regeneration from seeds lying dormant in the seedbed.

A group or category of logs sorted according to size, quality, or intended use.

The final cut in felling a tree that releases it from the stump, made on the opposite side of the face cut.

The cross-sectional area of a tree trunk at breast height (4.5 feet or 1.5 meters) often used in forest management.

The total cross-sectional area of tree stems at breast height on one acre of land, used to describe stand density.

Removing lower branches on a tree to produce a clear, knot-free stem, often done in plantation or high-quality hardwood management.

A new shoot or stem that arises from the base (stump or root collar) of a cut tree or a living tree after wounding, often used in regeneration of some species.

Application of herbicide or treatment around the base of a tree to control competing vegetation or invasive species, thereby improving growth of desired trees.

A set of voluntary or required forestry practices designed to protect water quality, soil, and wildlife during timber harvesting operations.

Bigtooth aspen is a fast-growing pioneer hardwood with light, soft wood and limited timber value, commonly found in young or recently disturbed Ohio forests.

A simple measuring stick used to estimate tree diameter and merchantable height in the field.

Bitternut hickory is a common Ohio hickory with hard, yellowish wood and modest timber value, recognized by its sulfur-yellow buds.

Black cherry is a valuable Ohio hardwood prized for its rich reddish-brown wood, used often in furniture, cabinetry, and veneer.

Black locust is a durable Ohio hardwood with extremely rot-resistant wood, valued for posts and specialty uses but limited in traditional sawtimber markets.

Black oak is a medium to large deciduous tree in the red oak group, native to eastern and central North America. It grows best on dry uplands and ridges, often in mixed hardwood forests. The tree is identified by its deeply lobed leaves with bristle tips and its dark, rough bark, which can appear nearly black on older trees. The largest one growing in Ohio is in Wayne County.

Black walnut is a large, long-lived hardwood tree native to eastern and central North America. It grows best in deep, well-drained soils and is prized for its straight trunk, compound leaves, and dark, deeply furrowed bark. The tree produces round, green-husked nuts with hard shells and oily, edible kernels inside. The largest one known in Ohio is in Delaware County.

Blackgum is a widespread Ohio hardwood with tough, twisty grain and low timber value, noted for its glossy leaves and brilliant fall color.

A group of trees uprooted or broken by strong winds, often creating canopy openings and regeneration opportunities.

A unit of measurement for lumber, equivalent to a 12-inch by 12-inch by 1-inch piece.

The main stem or trunk of a tree, excluding the branches and roots. Used often in scaling and grading.

A short log, usually less than eight feet long, cut from a tree and used for products such as pulpwood or veneer.

The small branches and tops left on site after felling or thinning operations, often chipped or mulched.

Trees with flat leaves, typically hardwoods like oak or maple.

The tender shoots, leaves, and twigs of shrubs, trees, and woody plants that are an essential part of the diet for herbivorous wildlife, including whitetail deer.

The height on trees and shrubs up to which deer or other animals have eaten the foliage, often a visible indicator of heavy browsing pressure.

A verb used in logging to describe cutting a felled tree into log lengths.

Bur oak is a rugged, long-lived tree of the white oak group, known for its thick bark and large fringed acorns. It grows across central and eastern North America, thriving in both dry uplands and moist bottomlands. Its drought tolerance and deep root system make it especially suited to harsh or open environments. The largest one in Ohio is in Wyandot County.

The lowest log cut from the bole of a tree, usually the most valuable section because it is the largest and often highest quality.

Butternut is a soft, light-colored hardwood related to black walnut, valued for its easy carving but limited today due to decline from butternut canker.

The thin layer of living tissue just beneath the bark that is responsible for the growth in diameter of a tree.

The layer of tree crowns in a forest that forms the uppermost layer of vegetation and influences light, moisture, and temperature below.

The maximum number of animals a habitat can support over time without causing degradation to the land or vegetation.

A living or dead tree with natural holes or cavities that provide nesting or shelter for birds, mammals, and other wildlife.

A professional forester who has met specific education, experience, and ethical standards set by a certifying organization, such as the Society of American Foresters (SAF). Certified Foresters typically undergo rigorous testing and continuing education to ensure expertise in sustainable forest management, timber valuation, and conservation practices. This certification signifies a high level of competency and commitment to professional forestry standards. You should never sell your timber without the help of a certified forester.

Chestnut oak is an Ohio upland oak with heavy, tannin-rich bark and hard, durable wood that carries modest to moderate timber value.

A medium to large deciduous tree in the white oak group, native to central and eastern North America. Chinkapin oak (also called “Chinquapin”) is known for its distinctive leaves, which have coarse, shallow teeth resembling those of the chinkapin shrub (hence the name). It typically grows on dry, rocky, or calcareous soils, often along slopes, bluffs, and well-drained uplands. This oak produces sweet, low-tannin acorns that are highly favored by wildlife, especially whitetail deer, squirrels, and turkeys. The wood is dense, durable, and comparable in quality to other white oaks, making it valuable for furniture, flooring, cabinetry, and barrel-making. Chinkapin oak is also drought-tolerant and contributes to biodiversity in mixed hardwood forests. The largest specimen of this species in Ohio, grows in Ross County.

The process of cutting wood into small chips for use in pulp, mulch, or energy production.

A logging method where all trees in an area are harvested at once. We explain more about clear cutting in forests here.

Common hackberry is a medium to large deciduous tree native to much of North America, often found along streambanks, floodplains, and open woodlands. It has distinctive corky, warty bark and oval, toothed leaves that may develop yellow fall color. Hackberry is highly adaptable and tolerant of drought, wind, and urban conditions. The largest specimen growing in Ohio is in Hancock County.

Though not a high-value timber species, its wood is used for furniture, boxes, and firewood. The tree produces small, sweet purple fruits that persist into winter and are eaten by birds, small mammals, and occasionally deer. Hackberry is valued in habitat plantings for its wildlife benefits and its ability to thrive on a wide range of soil types.

A defined management unit of forestland used for planning, inventory, and harvest scheduling.

A management action, such as thinning or herbicide treatment, designed to reduce competition from other trees or vegetation around desirable trees.

A visible fruiting body of a wood decay fungus that often indicates internal rot or defect in a tree.

Regeneration that occurs when new shoots sprout from the stump or roots of a harvested tree, common in many hardwood species.

A method of woodland regeneration in which trees are cut near ground level and allowed to regrow from sprouts on the stump.

A unit of measure for stacked firewood, equal to a pile four feet high, four feet wide, and eight feet long.

Interior habitat away from forest edges that supports species sensitive to disturbance or edge effects.

A classification of vegetation based on the dominant tree or plant species present on a site.

A selected tree that is left to grow and develop because it has desirable characteristics such as good form, health, or timber value.

The upper part of a tree, including the branches and foliage.

The degree to which the crowns of trees in a stand overlap or touch, influencing light levels and regeneration below.

A classification of trees in a stand based on their relative position in the canopy and access to light.

The process of removing part of a tree’s upper crown (branches and foliage) to reduce height or spread, often used in thinning or hazard-tree management.

A large, deciduous hardwood tree native to the eastern United States and parts of southern Canada. It typically grows in rich, moist hardwood forests, especially in coves, slopes, and bottomlands. The largest specimen of this species in Ohio is located in Stark County.

Named for its green, cucumber-shaped fruit, this species is the largest of the native magnolias, sometimes reaching over 80 feet tall. The tree is recognized by its broad, oval leaves, smooth gray bark, and inconspicuous yellow-green flowers that bloom in late spring. While not a major timber species, its wood is light, soft, and workable, used for furniture parts, boxes, and veneer. In forest settings, young shoots may be browsed by deer, though it’s not a preferred forage species. Cucumber magnolia is often included in mixed hardwood stands and contributes to overall forest diversity, particularly in Appalachian and central hardwood regions.

Tree or log of such poor quality that it has no merchantable value for timber products.

A tree that is unsound or of poor form and has no current merchantable value, but may still have wildlife or ecological value.

Non-harvest management actions such as pruning, thinning, or prescribed burning used to influence forest growth and development.

Diameter at Breast Height. The diameter of a tree measured at 4.5 feet above the ground, useful with length in calculating the volume of wood in a trunk.

A type of harvest where trees above a certain diameter at breast height (DBH) are removed, potentially leading to undesirable high-grading if done without good forest management planning.

A stacked pile of logs placed at a landing or staging area, ready to be loaded and hauled.

A wooded area with thermal cover and browse that provides critical winter habitat for deer in northern regions.

Imperfections or irregularities that diminish the quality, strength, appearance, or value of logs. These defects can originate from natural causes, environmental factors, or mishandling during logging. We explain more about log defects here.

The removal of a forest or trees to clear the land for other uses. This is done by land-clearing companies and isn’t the same as clear cutting, which we explain here.

The scientific study of trees and woody plants. Certified foresters are rigorously trained experts with years of experience in dendrology.

A timber sale method in which all trees above a specified diameter are cut. This method often leads to poor stand structure and can harm long-term timber value.

An area within a forest where a disease is concentrated and may spread outward if not controlled.

The arrangement of trees in a stand based on relative crown position and competition for light.

A tree with a crown that extends above the general level of the canopy and receives full sunlight from above and partial light from the sides.

A tree whose crown is overtopped by others and receives little or no direct sunlight.

A log rule used to estimate the amount of lumber that can be sawn from a log based on its diameter and length. It is commonly used in the eastern United States and tends to underestimate the volume in smaller logs and approximate or slightly overestimate the volume in larger logs.

A fast-growing, moisture-loving hardwood native to Ohio’s floodplains, stream banks, and wet bottomlands. Eastern cottonwood is known for its broad, triangular leaves with coarsely toothed edges and its deeply furrowed bark on mature trees. It’s one of the tallest deciduous trees, often exceeding 100 feet in height. The largest specimen growing in Ohio is in Delaware County. While its soft, lightweight wood is not prized for structural timber, it is used in pulp, crates, and low-grade lumber. Cottonwoods grow quickly in disturbed or open areas and are commonly seen in early successional habitats. Their young shoots and twigs can provide woody browse for deer, and the trees offer nesting habitat for birds. Because of its fast growth and tolerance for wet soils, Eastern cottonwood plays an important role in riparian restoration and erosion control in Ohio.

Eastern white pine is a tall, straight softwood with light, workable wood and moderate timber value, widely planted and found in pockets across Ohio.

An increase in growth rate and crown expansion of a tree that results when neighboring trees are removed, often seen after thinning or partial harvest.

The ecological influence that occurs where two different habitat types meet, often increasing wildlife activity and diversity.

New branches that sprout from the trunk or older branches, often caused by increased light exposure after thinning or harvest.

A branch that develops from a dormant bud on the trunk or an older branch, usually in response to increased light after thinning or harvest.

A forest stand where most, or all, trees are roughly the same age.

You already know what evergreen trees are. Don’t be silly.

A technique of creating a gradual transition between open areas and forest edges to enhance wildlife habitat and reduce wind exposure.

The act of cutting down a standing tree, typically with a chainsaw, feller buncher, or other equipment.

A gap in vegetation or other combustible material to prevent the spread of wildfires in a forest.

A circular sample plot of forest used in timber cruising and inventory where all trees inside a fixed distance from the plot centre are measured or counted.

Forbs are broad-leaved, herbaceous flowering plants that are not grasses, sedges, or rushes. In wildlife habitat management, forbs provide critical food and cover for many species, including whitetail deer, wild turkeys, songbirds, and pollinators. They are especially valuable as summer forage and are known for their high nutritional content and their role in supporting insect populations essential for young birds.

The transition zone between a forest and an open area such as a field or road, often rich in wildlife activity.

Habitat located deep inside a forest away from edges, roads, or clearings, important for certain sensitive species.

A document, usually prepared by an expert forester, to outline practical and sustainable practices for managing a forest. This is properly called a Woodland Management Plan.

Responsible and sustainable management of forest resources. In the forestry industry, this is properly called Woodland Stewardship.

A professional trained and employed in the management of forests.

A measure of a tree’s taper, or how quickly its trunk narrows from the base to the top. It represents the relationship between diameter at breast height (DBH) and diameter inside bark at the top of the first 16-foot log. A higher form class means the tree is more cylindrical and will yield more lumber for a given DBH. In most Ohio hardwoods, average form class values range from 78 to 82.

Freeman maple is a naturally occurring hybrid between red maple (Acer rubrum) and silver maple (Acer saccharinum). It combines the strong branching and vibrant red fall color of red maple with the fast growth and adaptability of silver maple. Freeman maple is commonly planted in urban and suburban landscapes and is widely sold in named cultivars such as ‘Autumn Blaze’ and ‘Sienna Glen.’

The tree grows rapidly and tolerates a wide range of soil conditions, including compacted or poorly drained sites. While it is mainly used as an ornamental shade tree, it also provides light wildlife value, offering some browse and nesting habitat. Freeman maples are sterile, meaning they do not produce significant seeds or fruit, which makes them a low-maintenance choice in landscaping. The largest one known in Ohio is in Guernsey County.

A method of tree control that combines girdling with herbicide application to ensure complete mortality of unwanted trees.

A method of killing a tree by cutting or removing a strip of bark and cambium around the trunk, which interrupts the flow of nutrients.

A log that meets certain quality standards and can be sold at a higher value than pulp or pallet logs.

Assessing the quality and the ultimate use of timber based on its characteristics.

Recently cut wood that still contains a significant amount of moisture.

The variety of habitat types and structures in a given area, which affects wildlife populations and ecological resilience.

Wood from broadleaf trees, like oak or maple.

A clearly defined section of a forest where timber harvesting takes place during a single operation or period.

The dense, inner part of a tree trunk, often darker and more durable.

Harvesting only the most valuable trees in a timber stand is very destructive. This is a common logging scam and you can learn to protect yourself from it here.

The practice of performing hinge cuts on multiple trees, as part of wildlife habitat management plan to create bedding areas, travel corridors, or food sources for whitetail deer.

Honey locust is a hardy Ohio hardwood with tough, coarse-grained wood and limited timber value, known for its long seed pods and sharp thorns on wild trees.

A distinct layer of soil, often labeled O, A, B, or C, that influences tree growth, rooting depth, and site productivity.

A tool used to extract a core sample from a tree to determine its age.

A hand tool used to remove a small core from a tree to measure its growth rings and estimate age and growth rate.

A plant or animal species whose presence or absence reflects environmental conditions, often used in habitat monitoring.

An industry forester is a professional forester employed by a forest products company, timber buyer, logging firm, or wood-processing business. Unlike consulting foresters, who work independently on behalf of landowners, industry foresters represent the interests of the company that employs them.

A log rule used to estimate the lumber volume in a log based on its diameter and length. It provides a more accurate estimate across a wide range of log sizes by accounting for saw kerf and taper, making it widely used in professional timber appraisal.

Non-native plants or animals that spread aggressively and compete with native species, often reducing biodiversity and altering habitat.

A species of pine tree valued for its use in paper pulp and sometimes as timber. It is also important for wildlife habitat.

A species that has a disproportionately large impact on its ecosystem, often influencing overall woodland composition and health.

Imperfections in logs caused by the presence of tree branches. Knots can affect the structural integrity and market value of logs.

The area where logs are gathered after felling and are prepared for loading onto trucks.

The layer of fallen leaves, needles, and small branches on the forest floor that influences soil moisture, nutrient cycling, and seed germination.

The proportion of a tree’s live crown (green foliage) relative to the total tree height, This is an indicator of tree health and vigor.

A stack or pile of logs ready for transport to a sawmill.

A classification system for logs based on quality (straightness, defect free length, diameter, taper) that determines its value and market destination.

A formula or table used to estimate the volume of lumber that can be sawn from a log of a given length and diameter.

A person employed to fell trees and drag them out of a forest for transport to a sawmill. A logger is just a middleman in the timber industry because he doesn’t by the timber to use it himself. The logger’s profit depends on the spread between what he pays the landowner and what the mill pays him. This creates a built-in incentive for the logger to buy timber as cheaply as possible, keep the true market value to himself, and then sell the logs for a higher price. He is not competing against anyone else when he deals directly with a landowner. The mills are not bidding either. Without competitive bids, the logger controls all the information about volumes, grades, and prices, so the landowner never knows what the timber is really worth. This is why many loggers act more like timber brokers than true service providers. They are the middlemen standing between the landowner’s timber and the mills that actually process it.

A road constructed to provide access to forested areas for the purpose of transporting harvested timber and equipment. These roads are often temporary and designed to minimize environmental impact.

The process of identifying trees in a timber stand for harvest or preservation.

Seeds, nuts, or fruits produced by forest trees and shrubs that serve as a critical food source for wildlife.

A year in which trees produce an unusually large crop of acorns, nuts, or seeds, often influencing wildlife populations.

A tree that has reached its optimal size for harvesting.

Timber of sufficient size and quality that it can be sold for commercial use.

Small-scale variations in soil, moisture, and light conditions within a stand that affect regeneration success.

A forest stand composed of both hardwood (broadleaf) and softwood (conifer) species growing together, which has different management options than pure stands.

Mockernut hickory is a sturdy Ohio hickory with hard, dense wood and modest timber value, recognized by its thick-shelled nuts and aromatic leaves.

Northern red oak is a major Ohio hardwood with strong, reddish-tinted wood and good timber value, widely used for flooring, furniture, and millwork.

The process by which a forest regrows naturally from seeds, sprouts, or root systems without human intervention.

The specific role or function of a species within its ecosystem, often referenced in forestry for understanding species diversity and habitat requirements.

Northern catalpa is a medium to large deciduous tree native to parts of the Midwest and southern United States, often planted well beyond its native range. It is easily recognized by its large heart-shaped leaves, showy white flowers with purple and yellow markings, and long, bean-like seed pods. Catalpa grows best in moist, well-drained soils but is highly adaptable to various conditions. The largest on growing in Ohio is in Lawrence County.

While not a commercial timber species, its soft, lightweight wood is decay-resistant and has been used for fence posts and rough construction. Catalpa also provides cover and shade in open areas and is valued ornamentally for its striking flowers. The tree supports wildlife by attracting pollinators and serving as a host for catalpa sphinx moth larvae, which are used as fish bait in some regions.

A fast-growing, large deciduous tree in the red oak group, native to much of eastern and central North America. It is known for its straight trunk, deeply furrowed bark, and bristle-tipped lobed leaves that turn red in fall. Northern red oak is commonly found in a wide range of soils but grows best on moist, well-drained uplands and slopes. The large read oak growing in Ohio in Ashtabula County. The tree produces acorns high in tannins, which are less palatable than white oak acorns but still eaten by deer, turkeys, and small mammals – especially when white oak mast is scarce. Its strong, coarse-grained wood is widely used for flooring, furniture, cabinetry, and interior trim. It is one of the most economically important timber species in North America and also valued for shade and wildlife habitat in managed forests.

A fast-growing or hardy tree species intentionally left or planted to provide shade or protection for a more valuable species.

Ohio buckeye is a small to medium-sized deciduous tree native to the Midwest and central United States. It is easily identified by its palmately compound leaves, smooth gray bark, and showy yellow-green spring flowers. The tree produces spiny capsules that contain shiny brown seeds, commonly called “buckeyes,” which are toxic to humans and livestock if ingested.

While not a major timber species, the wood is light, soft, and easily worked, occasionally used for novelty items, carvings, and boxes. Ohio buckeye provides early nectar for pollinators and light shade in natural landscapes but is generally avoided by deer and other wildlife due to its bitter foliage and toxic compounds. It is the official state tree of Ohio and a well-known regional symbol. The largest specimen growing in Ohio is in Huron County.

A forest that has reached a mature ecological stage, often characterized by large, old trees, complex ecosystems, and minimal human disturbance

Osage orange is a small to medium-sized deciduous tree native to parts of the south-central United States. It is known for its thorny branches, bright orange-brown bark, and large, rough, green fruits often called “hedge apples.” The tree was historically planted as a living fence or hedgerow before the invention of barbed wire, thanks to its dense, thorny growth.

The wood is extremely dense, durable, and rot-resistant, making it ideal for fence posts, tool handles, and bow making. Though the fruit is not typically consumed by wildlife, the tree provides cover and nesting habitat. Osage orange is drought-tolerant and thrives in a range of soils, often found in pastures, old fields, and fence lines across much of the United States. The largest one in Ohio is in Hamilton County.

The unsustainable practice of removing too many trees from a forest, often exceeding its natural regeneration capacity. Loggers can cheat you this way by under-reporting the harvest to you.

Overcup oak is a medium-sized deciduous tree in the white oak group, native to the southeastern United States. It is commonly found in low, wet sites such as floodplains, swamps, and poorly drained bottomlands. The tree is easily identified by its acorns, which are almost completely enclosed in their caps.

While not as commercially important as other oaks, its wood is suitable for furniture, flooring, and general construction. The acorns are eaten by deer, turkeys, waterfowl, and other wildlife. Overcup oak is often used in bottomland reforestation and wetland restoration projects because of its strong tolerance for seasonal flooding and saturated soils. The largest specimen of this species in Ohio is in Hamilton County.

The amount by which the actual lumber volume sawn from logs exceeds the volume estimated by the log scale, usually due to differences between theoretical and real yields.

The upper layer of trees in a forest.

Pignut hickory is a common Ohio hickory with hard, dense wood and modest timber value, identified by its small nut and smooth, grayish bark.

Pin oak is a medium-sized deciduous tree in the red oak group, native to the eastern and central United States. It prefers moist, poorly drained bottomland soils and is commonly found in floodplains, low woodlands, and along streams. The tree has a pyramidal shape with distinctive lower branches that angle downward and deeply lobed leaves with pointed tips. The largest Pin oak tree in Ohio is in Lake County.

Tree or shrub species that colonize disturbed areas quickly, paving the way for later successional species.

The practice of growing trees for commercial purposes in managed areas.

The specific location on a tree where a saw is applied to make a cut, typically on the stump a few inches from the ground. Many loggers try to scam landowners with this term. We teach you how to protect yourself from it on our Timber Talk blog.

Young trees of intermediate size, larger than saplings but not mature.

A strip of habitat that provides continuous forage and movement for pollinators such as bees and butterflies.

A thinning treatment that removes small, low-value trees to improve growing conditions for the remaining trees, without producing merchantable timber.

A carefully planned and controlled fire applied under specific conditions to meet forest management objectives such as hazard reduction or habitat improvement.

Removing branches from trees to improve timber quality or health.

Softwood tmber used to make paper products.

The genus name for oak trees, which are significant in forestry for their high-value timber and wildlife habitat.

Red maple is an abundant Ohio hardwood with light, versatile wood and modest timber value, known for its red twigs, buds, and brilliant fall color.
The largest one growing in Ohio is in Lake County.

Replanting trees in an area that was previously forested.

A financial guarantee required in some states or programs to ensure harvested lands are replanted or regenerated after logging.

The natural or artificial renewal of a forest.

The basal area of trees left on a site after harvest or thinning, used as an indicator of remaining stand density and future growth potential.

Injury or harm done to the trees that are meant to remain in the stand after harvesting (e.g., wounds, broken tops, soil compaction). This is something landowners should ask about when contracts are negotiated.

A strip of vegetation (often along streams or rivers) maintained or restored to protect water quality, provide habitat, and reduce erosion; very important for woodland management and regulatory compliance.

The area of vegetation along the edges of rivers and streams.

disease that attacks the roots of trees, often caused by fungi.

Rotary cut veneer is made by mounting a whole log on a lathe and peeling it in one continuous sheet, similar to unrolling paper towels. As the log spins, a knife peels the wood in a long, spiraled sheet that is later flattened. This method produces the highest yield because almost the entire log is used. The grain pattern is broad and more irregular because the veneer is cut around the full circumference of the log. Rotary cut veneer is commonly used in plywood and less often in fine furniture.

The planned number of years between the establishment of a stand and its final harvest.

A timber harvest aimed at removing diseased or pest-infested trees to protect the remaining stand.

A young tree, typically between one and four inches in diameter at breast height.

Sassafras is a small, aromatic Ohio hardwood with soft, lightweight wood and low timber value, recognized by its mitten-shaped leaves and spicy scent.

A log that is of sufficient size and quality to be sawed into lumber.

A facility where logs are processed into lumber by cutting, sawing, and shaping the wood into boards, beams, or other products.

Tree or log that is large and sound enough to produce lumber or veneer.

Scarlet oak is a dry-site Ohio oak with hard, heavy wood and modest timber value, known for its bright red fall color and deeply lobed leaves.

A harvesting method that removes individual trees or small groups across a stand, maintaining continuous canopy cover.

A service forester is a government-employed forestry professional who provides technical assistance, education, and guidance to private landowners on forest management practices. They help develop management plans, recommend conservation practices, and assist with programs like cost-share incentives, timber stand improvement, and reforestation, typically through a state forestry agency.

Shagbark hickory is a common Ohio hickory with very hard, dense wood and moderate timber value, easily recognized by its peeling, shaggy bark.

Shellbark hickory is a bottomland Ohio hickory with very hard, dense wood and modest timber value, noted for its large nuts and thick, scaly bark.

A method of regenerating a stand in which mature trees are removed in two or more stages to allow new seedlings to grow under the partial shade of remaining trees.

Shingle oak is a unique Ohio oak with single, unlobed leaves and hard, heavy wood that carries modest timber value.

Shumard oak is a fast-growing member of the red oak group, native to the southeastern and central United States. It thrives on well-drained bottomlands and upland slopes, often growing tall with a straight trunk and a broad, open crown. Its leaves have deep, pointed lobes and turn bright red in the fall. The largest one in Ohio is in Hamilton County.

Silver maple is a fast-growing deciduous tree native to eastern and central North America. It is commonly found along streams, rivers, and in wet bottomlands, thriving in moist, poorly drained soils. The tree is named for the silvery undersides of its deeply lobed leaves, which flutter visibly in the wind. It is often one of the first trees to leaf out in early spring and can grow to heights of 60 to 100 feet. The largest one growing in Ohio is located in Muskingum County, and was measured at 91 feet tall in 2024.

Silver maple wood is light, soft, and relatively weak, making it less desirable for high-grade lumber, though it is sometimes used for pulp, crates, and furniture components. Due to its rapid growth and shallow root system, silver maple is commonly planted for shade but can be prone to limb breakage and storm damage. In wildlife habitat, it offers browse for deer, nesting habitat for birds, and is an early source of pollen for bees. It also contributes to riparian restoration and streambank stabilization efforts.

The practice of controlling the establishment, growth, composition, and quality of forest stands to meet specific objectives.

A measure of the potential productivity of a forest site, often expressed as the height a given species will reach in a set number of years. Helps in determining tree value and appropriate management.

A machine used in a timber harvest to drag logs from the forest to a landing.

A pile of branches and woody debris left after logging, often burned, chipped, or used for wildlife cover.

The discard of tree tops, branches, and other woody debris after logging. Proper slashing or site cleaning can affect regeneration, fire risk, and aesthetics.

Sliced veneer is a thin sheet of wood produced by slicing a log or flitch with a large knife. The log is usually cut into quarters or halves first, then each section is passed against the blade in straight, downward slices. This method keeps the wood grain running in long, consistent lines that match the natural structure of the tree. Sliced veneer is commonly used for hardwoods like walnut, oak, maple, and cherry because it preserves attractive grain patterns.

A standing dead tree that provides valuable habitat for birds, mammals, and insects.

Wood from coniferous trees, like pine or spruce.

A group of trees growing together in a specific area.

The process of changing a forest stand from one species composition or structure to another through deliberate management actions.

The value of standing timber before it is harvested, usually expressed as a price per board foot, cord, or ton.

The natural progression of plant and tree communities over time following disturbance.

Sugar maple is a valuable Ohio hardwood with strong, fine-grained wood and good timber value, also known for producing high-quality maple syrup.

Practices aimed at managing forests to meet present and future needs.

Swamp white oak is a medium to large deciduous tree in the white oak group, native to the eastern and central United States. It grows naturally in low-lying areas such as swamps, floodplains, and wet bottomlands. The tree is recognized by its broad, lobed leaves that are dark green above and pale or silvery underneath, as well as its shaggy, peeling bark on mature trunks.

Sycamore is a large Ohio hardwood tree with light, tough wood and modest timber value, recognized by its mottled bark and broad, spreading crown.

The reduction in diameter of a tree stem as it rises. Taper affects log yield, log grade, and the estimation of volume in timber appraisals.

Technical Service Provider (TSP) is a certified individual, business, or organization authorized by the Natural Resources Conservation Service (NRCS) to help landowners plan and implement conservation practices on their land. In forestry, TSPs develop forest management plans, assist with timber stand improvement projects, and help landowners meet program requirements for cost‑share and incentive programs such as Environmental Quality Incentives Program (EQIP) and Ohio’s Current Agricultural Use Value (CAUV). Their work ensures that conservation and forestry projects meet NRCS technical standards.

A silvicultural treatment that removes some trees from a stand to reduce competition and improve growth and quality of the remaining trees.

An individual or company that purchases standing timber from landowners, typically for harvesting and resale. Timber buyers assess the value of timber based on factors such as species, size, quality, and market conditions. Ethical timber buyers provide fair offers, explain contract terms clearly, and follow sustainable harvesting practices. Their role often includes negotiating agreements, securing timber rights, and coordinating with loggers for harvesting. Many timber buyers in our service area are notoriously untrustworthy, and we teach you how to protect yourself from the worst ones on our Timber Talk Blog.

An inventory or survey of timber to estimate its volume and value.

The act of identifying trees to harvest (and sometimes trees to leave) prior to logging. This helps ensure the harvest meets the landowner’s goals and avoids unwanted removal of valuable trees.

A legal agreement outlining the terms of a timber harvest. This is where dishonest timber buyers and sawmills pull most of their logging scams. We teach you how to protect yourself from them here.

A forest management practice aimed at enhancing the growth, health, and quality of a timber stand by selectively removing undesirable trees, controlling competing vegetation, or pruning trees.

The tax basis of timber represents its value for tax purposes, typically the original cost of acquiring the timber or its fair market value at the time it was acquired.

A section of the upper stem and branches left in the woods after a tree is felled and merchantable logs are removed.

The practice of offering a price for standing timber that is significantly lower than its fair market value, often exploiting landowners who may be unaware of the timber’s true worth. This happens all over our service area, and we teach you how we protect you from it here

The layer of vegetation beneath the main canopy of a forest, typically made up of shrubs, saplings, and smaller trees.

A forest stand with trees of various ages.

High-quality straight, defect-free logs used to produce thin sheets of wood (veneer) for fine furniture and cabinetry.

A chart that shows the estimated amount of wood volume in trees or logs based on measurements such as diameter and height.

The land area that drains into a particular body of water.

White oak is a large, long-lived hardwood tree native to eastern and central North America. It is easily recognized by its light gray bark, deeply lobed rounded leaves, and broad crown. It typically grows on well-drained upland soils but can also be found in bottomlands and mixed hardwood forests. The large one growing in Ohio is in Athens County.

A strip of natural habitat connecting two larger areas, allowing or encouraging the movement of wildlife between them.

A connected strip of habitat that allows animals to move between larger habitat blocks, supporting migration and genetic exchange.

The process of improving or restoring natural environments to support wildlife populations.

A tree or stand that is resistant to windthrow due to root strength, stand density, or exposure conditions.

Trees uprooted or broken by wind. Vast numbers pf trees were killed like this by a derecho in 2022 in Wayne County and again in 2024 in Geauga County.

A tree with a large, spreading crown that takes up growing space from other trees in a stand.

Landscaping that reduces or eliminates the need for irrigation, often using trees and shrubs

The tissue in trees and plants responsible for conducting water and nutrients from the roots to the rest of the plant. In wood, xylem forms the structural material used as timber.

The process of moving logs from the felling site to the landing using skidders, cables, or other equipment.

Yellow birch is a northern Ohio hardwood with strong, fine-grained wood and moderate timber value, noted for its yellow-bronze peeling bark and wintergreen scent.

Yellow poplar, also known as tulip tree or tulip poplar, is a tall, fast-growing hardwood native to eastern North America. It is easily recognized by its distinctive tulip-shaped leaves, showy yellow-green flowers, and straight, columnar trunk. It thrives in deep, moist, well-drained soils and is commonly found in mixed hardwood forests, often dominating younger stands. The largest one in Ohio is in Summit County.

The amount of usable timber harvested from a forest.

A forest stand with trees in the early stages of growth.

A forestry practice that divides a woodland area into distinct zones based on use, such as conservation, recreation, or timber harvesting, to balance ecological and economic goals.