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Yellow-poplar

Liriodendron tulipifera

Ozone injury usually appears as black or purple spots (stipple), yellow or white bleached spots (chlorotic mottle, needle tip burn), or leaf browning (necrosis). Ozone may also cause premature leaf drop (senescence).



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Healthy Yellow-poplar Leaf
Courtesy, USDA PLANTS Database
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Healthy Yellow-poplar Leaves
Courtesy, USDA PLANTS Database

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Healthy Yellow-poplar Flower
Courtesy, USDA PLANTS Database
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Ozone Injury to Yellow-poplar Leaves
Courtesy, USDA PLANTS Database

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Ozone Injury to Yellow-poplar Leaf
Courtesy, USDA PLANTS Database
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Close-up View of Ozone Injury to Yellow-poplar Leaf
Courtesy, USDA PLANTS Database
updated on 09/17/2006  I   http://nature.nps.gov/air/Pubs/bioindicators/yellowPoplar.cfm   I  Email: Webmaster