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Quercus coccinea
''Quercus coccinea'', the scarlet oak, is an oak in the red oak section ''Quercus'' sect. ''Lobatae''. The scarlet oak can be mistaken for the pin oak, the black oak, or occasionally the red oak. On scarlet oak the sinuses between lobes are "C"-shaped in comparison to pin oak (''Q. palustris''), which has "U"-shaped sinuses and the acorns are half covered by a deep cap.〔( University of Connecticut Plant Database: ''Quercus coccinea'' )〕
Scarlet oak is mainly native to the central and eastern United States, from southern Maine west to Wisconsin and Missouri, and south as far as Louisiana, Alabama, and Georgia.〔(Biota of North America Program 2014 county distribution map )〕 It occurs on dry, sandy, usually acidic soils. It is often an important canopy species in an oak-heath forest.〔(''The Natural Communities of Virginia Classification of Ecological Community Groups'' (Version 2.3), Virginia Department of Conservation and Recreation, 2010 )〕〔Schafale, M. P. and A. S. Weakley. 1990. ''Classification of the natural communities of North Carolina: third approximation''. North Carolina Natural Heritage Program, North Carolina Division of Parks and Recreation.〕
==Description==
''Quercus coccinea'' is a medium-large deciduous tree growing to 20–30 m (67-100 feet) tall with an open, rounded crown. The leaves are glossy green, 7–17 cm (2.8-6.8 inches) long and 8–13 cm (3.2-5.2 inches) broad, lobed, with seven lobes, and deep sinuses between the lobes. Each lobe has 3-7 bristle-tipped teeth. The leaf is hairless (unlike the related pin oak, which has tufts of pale orange-brown down where the lobe veins join the central vein). The common English name is derived from the autumn coloration of the foliage, which generally becomes bright scarlet; in contrast, pin oak foliage generally turns bronze in autumn. The acorns are ovoid, 7–13 mm broad and 17–31 mm long, a third to a half covered in a deep cup, green maturing pale brown about 18 months after pollination; the kernel is very bitter.〔(Flora of North America: ''Quercus coccinea'' )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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