Vegetation survey of elkhart woods, Logan County, Illinois
Elkhart Woods is a high quality prairie grove located about one km east of the town of Elkhart, Illinois. This isolated grove is situated on a glacial kame of Illinoian age surrounded by flat to gently rolling farmland. Acer saccharum Marsh, dominated all tree diameter classes, had the highest importance value (84 of 200), averaged 132.5 stems/ha (above 10 cm dbh), and had a basal area of 9.33 m /ha. Other important species included Ulmus rubra Muhl. (IV of 28), U. americana L. (IV of 12), and Celtis occidentales L. (IV of 28) which were common in the smaller diameter classes, with Fraxinus quadrangulata Michx. (IV of 18) and Quercus macrocarpa Michx. (IV of 8) common above 60 cm dbh. The woods had a stand composition of 283.8 stems/ha and a basal area of 25.24 m /ha. The woody seedling and sapling layers were dominated by Acer saccharum, with Asimina triloba (L.) Dunal. abundant in some areas. The herbaceous layer was dominated by Laportea canadensis (L.) Wedd. with Hydrophyllum virginianum L. and Asarum canadense L. common. 2 2
Ebinger, John, Daniel O'Connel, Steve Turner, Floyd Catchpole, and William McClain. "Vegetation survey of Elkhart woods, Logan County, Illinois." Castanea (1997): 74-81.