GREGORY DIMIJIAN / SCIENCE PHOTO LIBRARY GREGORY DIMIJIAN / SCIENCE PHOTO LIBRARY
The needles and leaves of five woody plant species in the White Mountains of New Hampshire. From left to right: eastern white pine (Pinus strobus), American beech (Fagus grandifolia), northern red oak (Quercus rubra), red maple (Acer rubrum), and sugar maple (Acer saccharum).
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