Quercus bicolor Willd.
Swamp white oak
Swamp white oak is native to eastern North America.
Plants: Trees reach a height of 70′ (21 m), with the largest known at 108′ (32 m). Bark is dark brown, and flaky. These tree live up to 300 years. See the Quercus comparison table.
Leaves: Leaves have many small lobes that may be rounded or somewhat sharp; they are 4½–7 ⨉ 2½–4″ (12–18 ⨉ 7–11 cm). Leaf undersides are whitish. In the fall, leaves have an orange-brown or red color.
Flowers: Small and easy to miss, in separate male and female catkins, appearing in the spring
Fruits: An acorn, ½–¾″ long ⨉ ⅜–¾″ around (1.5–2 ⨉ 1–2 cm), on a short stalk. Trees don’t produce acorns until they reach 20 years of age.
Habitats: Broad stream valleys, low-lying fields, and the margins of lakes, ponds, or sloughs—places which are sometimes, but not always, wet.
Online References:
References:
10/11/2013 · Beaver Brook Conservation Area, Hollis, New Hampshire · ≈ 10 × 13″ (25 × 31 cm) 
5/29/2010 · Nashua River Rail Trail, Pepperell, Massachusetts · ≈ 11 × 7″ (27 × 18 cm) 
ID is uncertain 
Immature acorns. · 8/18/2012 · Nashua River Rail Trail, Groton Center, Groton, Massachusetts · ≈ 3½ × 5″ (9.2 × 13 cm) 
10/5/2009 · Nashua River Rail Trail, Groton, Massachusetts · ≈ 1½ × 1′ (51 × 40 cm) ID is uncertain 
10/7/2012 · Beaver Brook Conservation Area, Hollis, New Hampshire · ≈ 9 × 6″ (22 × 14 cm) 
5/29/2010 · Nashua River Rail Trail, Pepperell, Massachusetts · ≈ 7 × 11″ (18 × 27 cm) ID is uncertain 
10/5/2009 · Nashua River Rail Trail, Groton, Massachusetts · ≈ 1½ × 1½′ (53 × 45 cm) ID is uncertain 
Immature acorns. · 8/18/2012 · Nashua River Rail Trail, Groton Center, Groton, Massachusetts · ≈ 4 × 3″ (10 × 7.9 cm) 
11/4/2016 · Old Long Loop, Beaver Brook Conservation Area, Hollis, New Hampshire · ≈ 8 × 5″ (20 × 13 cm) 
| Kingdom | Plantae | Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin) |
| Subkingdom | Tracheobionta | Vascular plants—plants with a “circulatory system” for delivering water and nutrients |
| Division | Magnoliophyta | Flowering plants, also known as angiosperms |
| Class | Magnoliopsida | Dicotyledons—plants with two initial seed leaves |
| Subclass | Rosidae | Roses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more |
| Order | Fagales | Birch, she-oak, beech, walnut, bayberry, others |
| Family | Fagaceae | Beech familhy |
| Genus | Quercus | Latin for “oak” |
| Species | bicolor | “Two-colored” (Does anybody know what is bicolored about it?) |
Quercus bicolor description by Thomas H. Kent, not updated.
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