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sec. fna.org 1993
common name: Shumard's oak
Steven J. Baskauf
Heron Pond Trail, Cache River State Natural Area, Johnson County, Illinois, US
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twig - winter overall
leaf - whole upper surface
fruit - as borne on the plant
fruit - lateral or general close-up
fna.org 1993 =
Flora of North America Editorial Committee, eds., 1993. Flora of North America North of Mexico. Flora of North America Association, New York, NY, US and Oxford, UK.
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