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Flora of North America / Botany / Flora / Pinaceae / Ornamental trees / Old growth forests / Hemlock woolly adelgid / Phylloxeroidea / Tsuga canadensis / Tsuga / Cook Forest State Park / Blackburnian warbler
Date: 2013-02-04 11:21:25
Flora of North America
Botany
Flora
Pinaceae
Ornamental trees
Old growth forests
Hemlock woolly adelgid
Phylloxeroidea
Tsuga canadensis
Tsuga
Cook Forest State Park
Blackburnian warbler

State Tree of PENNSYLVANIA

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