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| Almond-Common | Prunis dulcis |
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| Apple-Domestic | |
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| Apple-Wild | |
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| Ash-White | Fraxinus americana |
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| Aspen-Largetooth | Populus grandidentata |
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| Aspen-Trembling | Populus tremuloides |
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| Baobab (Africa) | |
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| Basswood | Tilia americana |
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| Beech-American | Fagus grandifolia |
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| Beech (European) | |
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| Birch-Dwarf | Betula nana |
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| Birch-White | Betula papyrifera |
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| Birch-Yellow | Betula alleghaniensis |
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| Butternut | Juglans cinerea |
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| Boreal Forest | |
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| Cedar-Eastern White | Thuja occidentalis |
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| Cedar-Western Red | Thuja plicata |
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| Chestnut-Horse | |
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| Chestnut-American | Castanea dentata |
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| Chokecherry | |
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| Christmas Trees | |
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| Clearcutting-Logging | |
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| Cork-Portugal | |
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| Cottonwood-Black | |
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| Cottonwood-Freeman's | |
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| Cucumber-Tree | Magnolia acuminata) |
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| Elm-American-White | Ulmus americana |
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| Fir-Balsam | Abies balsamea |
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| Fir-Alpine | |
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| Fir-Douglas | |
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| Forest Destruction | |
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| Forest Fire | |
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| Forest-Hoarfrost-Moon | |
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| Growth Rings | |
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| Hackberry | Celtis occidentalis |
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| Hawthorn | |
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| Hemlock-Eastern | Tsuga canadensis |
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| Hemlock-Ground | |
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| Hickory-Shagbark | Carya ovata |
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| Juniper-Alligator | Juniperus deppeana |
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| Kentucky Coffeetree | Gymnocladus dioicus |
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| Lemon (Portugal) | |
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| Loquat (Portugal) | |
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| Maple-Bigleaf | Acer macrophyllum |
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| Maple-Manitoba | Acer negundo |
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| Maple-Mountain | |
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| Maple-Norway | Acer platanoides |
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| Maple-Red | |
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| Maple-Silver | Acer saccharinum |
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| Maple-Striped | Acer pensylvanicum |
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| Maple-Sugar | Acer saccharinum |
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| Mountain-Ash | Sorbus Americana |
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| Nurse-Log-Stump | |
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| Oak-Chinquapin | Quercus muehlenbergii |
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| Oak-Red | Quercus rubra |
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| Oak Savannah Forest | |
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| Oak-White | Quercus alba |
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| Olive-Portugal | |
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| Orange | |
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| Pine-Austrian | |
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| Pine Beetle Damage | Dendroctonus ponderosae |
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| Pine-Eastern-White | Pinus strobus |
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| Pine-Jack | Pinus banksiana |
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| Pine-Limber | |
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| Pine-Lodgepole | Pinus contorta |
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| Pine-Ponderosa | |
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| Pine-Red | Pinus resinosa |
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| Pine-Scots | Pinus sylvestris |
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| Plum-Wild | |
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| Pulpwood Paper | |
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| Poplar-Balsam | |
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| Poplar Silver | Populus alba |
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| Pussywillow | |
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| Rainforest-Pacific-Northwest-Temperate | |
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| Sassafras | |
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| Spruce-Black | Picea mariana |
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| Spruce-Engelmann | |
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| Spruce-Sitka | Picea sitchensis |
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| Spruce-White | Picea glauca |
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| Sycamore | Platanus occidentalis |
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| Tamarack | Larix laricina |
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| Tuckamore | |
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| Tulip-Tree | Liriodendron tulipifera |
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| Walnut-Black | Juglans nigra |
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| Willow | |
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| Willow-Arctic | |
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