Compare sources for Quercus alba

Eastern North America; 0 to 1600 m; introduced in Europe en 1724;

reaches 25 m high, but only 15 m in Europe; spreading crown; at high elevations forms a low bush;

Deciduous. Med to large tree, often 80’. Most widespread of the white oak group. Majestic in old age.

8-20 cm long, 5-10 cm wide; elliptic, glabrous, with 3-9 pairs of untoothed lobes and more or less deep sinuses; base cuneate; dark green above, withish beneath; dark red midrib, 5-7 pairs of lateral veins; purple in autumn; petiole glabrous, yellow grey, sulcate on the lateral sides, reddish at fall, 1-2 cm long;

• 6 1/2”
• sharply tapered base
• color generally more grayish bluish than other oaks, not glossy
• moderate to deep rounded lobes
• paler underleaf
• mature leaves with short stalk
• stiff do not droop or sway in breeze

acorn 2-3 cm long, oblong, subsessile or short-stalked; enclosed for 1/4 of length in a shallow cup with warted, appressed and grey tomentose scales; cotyledons distinct; maturing in 1 year;

• 3/4”
• often short peduncle
• shallow cup
• germinate in Fall vs Res Oaks in Spring\

male flowers yellow green;

Young/small trees:

• pale ashy gray
• in long strips that typically peel from one side

Mature trees:

• long, peeling ridges or small blocks

greenish to purple-gray
formation appears stiffer than in red oak group

small and blunt

hardy; prefers acidic, well drained moist soils; long-lived, up to 200 years and more;

• Widespread and common in rich, moist, or dry soils; often on ridges and slopes.
• May be NA’s most abundant native tree.
• Attractive and common in cultivation
• Zones 3-9

Resources:
Quercus alba

– A. Camus : n° 278 ; – Sub-genus Quercus, Section Quercus, Series Albae; – Closely related to Q.bicolor and to Q.macrocarpa ;