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Quercus palustris
Pin Oak

Pin Oak displays a great deal of variation in its foliage, ranging from five to seven-lobed, with or without incisions on its lobes, and having shallow or deep sinuses (the underlined words indicate the characters found in this image). Pin Oak, when sited in alkaline pH soils, usually displays dramatically chlorotic (yellowing) foliage by mid- to late Summer, rather than healthy medium to dark green foliage when found in acid soils.



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Department of Horticulture and Crop Science
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