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yellow-poplar (Liriodendron tulipifera) sassafras (Sassafras albidum) sweetgum (Liquidambar styraciflua) sycamore (Platanus occidentalis) black Cherry (Prunus serotina) black locust (Robinia pseudoacacia) American holly (Ilex opaca) red maple (Acer rubrum) silver maple (Acer saccharinum) eastern redbud (Cercis canadensis) blackgum (Nyssa sylvatica) flowering dogwood (Cornus florida) persimmon (Diospyros virginiana) white ash (Fraxinus americana) eastern white pine (Pinus strobus) loblolly pine (Pinus taeda) Virginia pine (Pinus virginiana) baldcypress (Taxodium distichum) eastern redcedar (Juniperus virginiana) black walnut (Juglans nigra) American beech (Fagus grandifolia) white oak (Quercus alba) northern red oak (Quercus rubra) southern red oak (Quercus falcata) pin oak (Quercus palustris) pignut hickory (Carya glabra) sweet bay (Magnolia virginiana) black willow (Salix nigra) 2013 Science Olympiad Delaware Tree List This list is compiled from the National Science Olympiad Tree List. All 28 tree species are native to Delaware and play an important role in forestry.
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eastern white pine Pinus strobus (Pinaceae)
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loblolly pine Pinus taeda (Pinaceae)
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Virginia pine Pinus virginiana (Pinaceae)
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baldcypress Taxodium distichum (Taxodiaceae)
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eastern redcedar Juniperus virginiana (Cupressaceae)
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black walnut Juglans nigra (Juglandaceae)
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American beech Fagus grandifolia (Fagaceae)
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white oak Quercus alba (Fagaceae)
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northern red oak Quercus rubra (Fagaceae)
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southern red oak Quercus falcata (Fagaceae)
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pin oak Quercus palustris (Fagaceae)
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pignut hickory Carya glabra (Juglandaceae)
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sweetbay Magnolia virginiana (Magnoliaceae)
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black willow Salix nigra (Salicaceae)
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yellow-poplar Liriodendron tulipifera (Magnoliaceae)
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sassafras Sassafras albidum (Lauraceae)
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sweetgum Liquidambar styraciflua (Hamamelidaceae)
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sycamore Platanus occidentalis (Platanaceae)
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black cherry Prunus serotina (Rosaceae)
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black locust Robinia psuedoacacia (Fabaceae)
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American holly Ilex opaca (Aquifoliaceae)
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red maple Acer rubrum (Aceraceae)
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silver maple Acer saccharinum (Aceraceae)
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eastern red bud Cercis canadensis (Fabaceae)
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blackgum Nyssa sylvatica (Nyssaceae)
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flowering dogwood Cornus florida (Cornaceae)
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persimmon Diospyros virginiana (Ebenaceae)
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white ash Fraxinus americana (Oleaceae)
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