For a more complete list of trees, check out the Nebraska Statewide Arboretum site http://arboretum.unl.edu/ and follow the PLANT SEARCH.
2005
American Linden (Tilia americana), Nebraska Forest Service
American Sycamore (Platanus occidentalis), Nebraska Forest Service
Amur Maple (Acer ginnala), Nebraska Forest Service
Baldcypress (Taxodium distichum), Nebraska Forest Service
Black Locust (Robinia pseudoacacia), Nebraska Forest Service
Black Walnut (Juglans nigra), Nebraska Forest Service
Colorado Spruce (Picea pungens) Nebraska Forest Service
Douglas Fir (Pseudotsuga menziesii), Nebraska Forest Service
Eastern Redbud (Cercis canadensis), Nebraska Forest Service
Eastern White Pine (Pinus strobus), Nebraska Forest Service
Ginkgo (Ginkgo biloba), Nebraska Forest Service
Japanese Tree Lilac (Syringa reticulata), Nebraska Forest Service
Kentucky Coffeetree (Gymnocladus dioicus), Nebraska Forest Service
Northern Catalpa (Catalpa speciosa), Nebraska Forest Service
Northern Red Oak (Quercus rubra), Nebraska Forest Service
Norway maple (Acer platanoides), Nebraska Forest Service
Norway Spruce (Picea abies), Nebraska Forest Service
Red Maple (Acer rubrum), Nebraska Forest Service
River Birch (Betula nigra), Nebraska Forest Service
Serbian Spruce (Picea omorika), Nebraska Forest Service
Serviceberry (Amelanchier sp.), Nebraska Forest Service
Silver Maple (Acer saccharinum), Nebraska Forest Service
Sugar Maple (Acer saccharum), Nebraska Forest Service
Swamp White Oak (Quercus bicolor), Nebraska Forest Service
White Fir (Abies concolor), Nebraska Forest Service