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Botany of the Carolinas Coastal Plain, Part 14: Pines of a Pocosin, Croatan National Forest, North Carolina, USA
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Young Eastern Cottonwood Trees (Populus deltoides) in Autumn Color, Warren Dunes State Park, Michigan, USA
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Botany of the Carolinas Coastal Plain, Part 31: Another Ancient of Days | Charles Pinckney National Historic Site, Mount Pleasant, South Carolina, USA
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Bur Oak (Quercus macrocarpa) in the Light of Early Winter, Glacial Park, McHenry County, Illinois, USA
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A Sourwood Tree (Oxydendrum arboreum) in Full Bloom, Cold Mountain Overlook, Blue Ridge Parkway, North Carolina, USA
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Carob Tree (Ceratonia siliqua) on the Grounds of the Temple of Jupiter Anxur (Tempio di Giove Anxur), Terracina, Italy
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Wonders of an Old-Growth Forest, Part 1: The Ancient Ones, Warren Woods State Park, Michigan, USA
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The Tree as a Starting Point in Integrative Natural History: Jack Pine (Pinus banksiana) on the Magnetic Rock Trail, Superior National Forest, Minnesota, USA
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Section of Bur Oak Savanna in Late-Summer Sun, Western Bluff of the Fox River, Chain O'Lakes State Park, Illinois, USA
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Sorrel Tree (Oxydendrum arboreum) Flowering Panicle, Cold Mountain Overlook, Blue Ridge Parkway, North Carolina, USA
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Heart of Darkness: Spanish Dagger Tree (Yucca faxoniana), along US Route 62 a Few Miles East of El Paso, Texas, USA
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Texas Madrone Tree (Arbutus xalapensis) in McKittrick Canyon, Guadalupe Mountains National Park, Texas, USA
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Just Saying Hello: Arborescent Saguaro Cacti (Carnegiea gigantea), Organ Pipe Cactus National Monument, Arizona, USA
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An Island of Life Amid Bare Rock: Near the Summit of Mount Cardigan, Cardigan Mountain State Forest, New Hampshire, USA
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Wonders of an Old-Growth Forest, Part 2: Trunk of a Grand Old Sugar Maple (Acer saccharum), Warren Woods State Park, Michigan, USA
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Urban Street Trees, Part 1: Red Oak (Quercus rubra), Park Slope Neighborhood, Borough of Brooklyn, New York, New York, USA
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View of the Forested Johnstown Moraine from East Bluff, Devil's Lake State Park, Wisconsin, USA
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Essay in Whites and Grays: Birch Polypore (Fomitopsis betulina) on a Paper Birch (Betula papyrifera), Kitchi Gammi Park, Duluth, Minnesota, USA
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A Strange Sort of Spring, Part 1: White Spruces (Picea glauca) Laden with Snow, Quoddy Head State Park, Maine, USA
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Roots in Ancient Lava: A Stand of Arbor Vitae (Thuja occidentalis) Growing on Basalt, Gooseberry Falls State Park, Minnesota, USA
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Urban Street Trees, Part 2: California Fan Palms (Washingtonia filifera), Scottsdale, Arizona, USA
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Essay in the Absurd, Part 1: A Boojum Tree (Fouquieria columnaris) in the Desert Botanical Garden, Phoenix, Arizona, USA
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Bitter Orange Trees (Citrus x aurantium) in the Patio de los Naranjos, Seville Cathedral, Seville, Spain
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Lord of the Sundrenched Grasslands: A Bur Oak (Quercus macrocarpa), Nachusa Grasslands Preserve, Franklin Grove, Illinois, USA
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Portrait of a Peatland, Part 1: Webb's Mill Bog, Greenwood Forest Wildlife Management Area, New Jersey, USA
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Cedar of Lebanon (Cedrus libani) in a Frontlit December Mist, Piazza Bra, Verona, Italy