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Zanthoxylum americanum Mill (prickly-ash), leaves are alternate compound-pinnate 6-8" long, leaflets are 5-11 (sometimes 13) often with 1 or 2 spines on the main stalk where the leaflets are attached 1.5-2.5" long ovate to oval lustrous dark green above pubescent below minutely or not serrated
Copyright restrictions applying to use or reproduction of this image are available from the Sterling Morton Library, The Morton Arboretum. For more information, please visit our ABOUT section or complete and submit this form.
