Tree of Heaven      Ailanthus altissima (P. Mill.) Swingle
Photographs by Dr. Michael Pfeiffer
Sign Invasive
Plants
click for a larger image 		Tree and Foliage
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Stem Seeds
click for a larger image 		Foliage
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Infestation
click for a larger image 		Plants
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Trunks
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Young Plants from Roots
click for a larger image 		Young Plants from Roots
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Infestation
click for a larger image 		Stems in Winter
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Perennial