Beech cupules. The husk can have a variety of spine- to scale-like appendages, the character of which is, in addition to leaf shape, one of the primary ways beeches are differentiated. The nuts are edible, though bitter (though not nearly as bitter as acorns) with a high tannin content, and are called beechnuts or beechmast. The name of the tree (Latin "fagus", whence the species name; cognate with English "beech") is of Indo-European origin, and played an important role in early debates on the geographical origins of the Indo-European people. Greek φηγός is from the same root, but the word was
Beech urban pollution. It most commonly occurs as an overstory component in the northern part of its range with sugar maple, transitioning to other forest types further south such as beech-magnolia. American beech is rarely encountered in developed areas unless as a remnant of a forest that was cut down for land development. East Asia is home to five species of "Fagus", only one of which ("F. crenata") is occasionally planted in Western countries. Smaller than "F. sylvatica" and "F. grandifolia", Japanese beech is one of the most common hardwoods in its native range. Beech wood is an excellent firewood, easily