Editing Quercus bicolor (section)

== Distribution and habitat ==
Swamp white oak, a lowland tree, occurs across the eastern and central United States and eastern and central Canada, from [[Maine]] to [[South Carolina]], west as far as [[Ontario]], [[Minnesota]], and [[Tennessee]] with a few isolated populations in [[Nebraska]] and [[Alabama]]. This species is most common and reaches its largest size in western [[New York (state)|New York]] and northern [[Ohio]].<ref>{{Silvics|volume=2|genus=Quercus|species=bicolor|first=Robert|last=Rogers|access-date=14 December 2009}}</ref><ref>{{BONAP|ref|genus=Quercus|species=bicolor}}</ref>

The swamp white oak generally occurs singly in four different forest types: [[black ash–American elm–red maple]], [[silver maple–American elm]], [[bur oak]], and [[pin oak–sweetgum]]. Occasionally the swamp white oak is abundant in small areas. It is found within a very wide range of mean annual temperatures from {{convert|16|to|4|°C|°F|abbr=on}}. Extremes in temperature vary from {{convert|41|to|-34|°C|°F|abbr=on}}. Average annual precipitation is from {{convert|640|to|1270|mm}}. The frost-free period ranges from 210 days in the southern part of the growing area to 120 days in the northern part. The swamp white oak typically grows on hydromorphic soils. It is not found where flooding is permanent, although it is usually found in broad stream valleys, low-lying fields, and the margins of lakes, ponds, or sloughs. It occupies roughly the same ecological niche as [[pin oak]], which seldom lives longer than 100 years, but is not nearly as abundant.