tokens: Ice Mountain 's tree canopy also consists of sugar maple ( `` Acer saccharum `` ) , American tulip poplar ( `` Liriodendron tulipifera `` ) , shagbark hickory ( `` Carya ovata `` ) , eastern black oak ( `` Quercus velutina `` ) , black gum ( `` Nyssa sylvatica `` ) , American sycamore ( `` Platanus occidentalis `` ) , black cherry ( `` Prunus serotina '' ) , linden ( `` Tilia americana `` ) , white ash ( `` Fraxinus americana `` ) , and black walnut ( `` Juglans nigra `` ) .