flatwoods

Another photo of Ryerson Woods (Lake County, IL) from last weekend. This one gives a better look at the trailside area where a shallow ditch was filled to restore hydrology.

Northern flatwoods are an unusual community on claypan... in this case a dense, yellowish clay just a few inches below the surface... characterized by stunted oaks including swamp white oak, various shrubs, and a herbaceous layer which includes several uncommon sedges. In late winter and spring it's very wet with numerous small vernal ponds which support a diverse amphibian community, and in late summer and fall conditions are typically very dry.