The flatwoods here are different in that a mix of prairie grasses and forbs intermingles with southern bottomland trees such as cherrybark, Shumard's red, swamp white, and pin oaks, along with shellbark hickory, sweet and black (Nyssa sylvatica Marshall) gum, and green ash (Hedge 1997).
High quality floodplain forest of predominately silver maple, green ash, shellbark hickory, pecan, and bur oak.
The prominent "true" hickories include shagbark hickory, shellbark hickory
, pignut hickory and mockernut hickory.
This periodic flooding with slow drying provides a richly diverse overstory of mixed hardwoods: shellbark hickory
, pecan, slippery elm, sweetgum, hackberry, persimmon, pawpaw, possumhaw, blue beech, pumpkin ash, and the great oaks: bur, Shumard, overcup, and swamp chestnut.
2002) found that Cerulean Warblers in Illinois showed the strongest preference for shellbark hickory
(Carya laciniosa) and bitternut hickory (Carya cordiformis).
Also commercially important is shellbark hickory (Carya laciniosa) which looks a lot like shagbark, mockernut hickory (Carya tomentosa), and pignut hickory (Carya glabra).
Shagbark hickory, white hickory, red hickory, mockernut hickory, pignut hickory, shellbark hickory