Quercus alba L.

Stave oak (en), Chêne blanc (fr)

Species

Angiosperms > Fagales > Fagaceae > Quercus

Characteristics

Trees , deciduous, to 25 m. Bark light gray, scaly. Twigs green or reddish, becoming gray, 2-3(-4) mm diam., initially pubescent, soon glabrous. Buds dark reddish brown, ovoid, ca. 3 mm, apex obtuse, glabrous. Leaves: petiole (4-)10-25(-30) mm. Leaf blade obovate to narrowly elliptic or narrowly obovate, (79-)120-180(-230) × (40-)70-110(-165) mm, base narrowly cuneate to acute, margins moderately to deeply lobed, lobes often narrow, rounded distally, sinuses extending 1/3-7/8 distance to midrib, secondary veins arched, divergent, (3-)5-7 on each side, apex broadly rounded or ovate; surfaces abaxially light green, with numerous whitish or reddish erect hairs, these quickly shed as leaf expands, adaxially light gray-green, dull or glossy. Acorns 1-3, subsessile or on peduncle to 25(-50) mm; cup hemispheric, enclosing 1/4 nut, scales closely appressed, finely grayish tomentose; nut light brown, ovoid-ellipsoid or oblong, (12-)15-21(-25) × 9-18 mm, glabrous. Cotyledons distinct. 2 n = 24.
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Tall tree with light gray, coarsely flaky, shallowly furrowed bark and widely spreading branches; twigs soon glabrescent; lvs obovate or oblong-obovate, cuneate at base, thinly floccose beneath at first (the pubescence can be rolled off with one’s thumb), glabrous or nearly so at maturity, pale beneath, the lobes 3 or 4(5) pairs, ascending, oblong to ovate, rounded or rarely acute; acorns sessile or on pedicels to 4 cm, the cup deeply saucer-shaped, pubescent within, covering a fourth to a third of the nut; nut ovoid to cylindric-ovoid, 1.5–2.5 cm. Upland woods; Me. to Mich. and Minn., s. to n. Fla. and e. Tex. Extreme forms in which the lobes are scarcely more than large teeth may be distinguished from the chestnut-oaks by the lack of pubescence.
A medium to large tree. It grows to 35 m high. It spreads about 30 m wide. The trunk is 120 cm across. The leaves are 10-20 cm long and with 7-9 lobes. The leaves are usually widest above the middle. The lobes are rounded and narrow. There are deep notches between the lobes. The leaves are pinkish and downy when unfolded. The upper surface becomes bright green and they are paler underneath. They can turn reddish-purple in autumn. The acorns are 12-20 mm long. They occur either singly or in pairs. The cup is bowl shaped. It encloses about one quarter of the nut.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality monoecy
Pollination anemogamy
Spread -
Mature width (meter) 4.0 - 8.0
Mature height (meter) 20.0 - 25.0
Root system tap-root
Rooting depth (meter) 1.75
Root diameter (meter) 0.3
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Dry woods, gravelly ridges, sandy plains, rich uplands and moist bottoms. Moist to fairly dry, deciduous forests usually on deeper, well-drained loams, also on thin soils on dry upland slopes, sometimes on barrens; at elevations up to 1,600 m
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It is native to eastern North America. Temperate. It grows in a variety of soils. It can tolerate some shade. It suits hardiness zones 5-9. Arboretum Tasmania.
Light 4-7
Soil humidity 3-6
Soil texture 2-4
Soil acidity 2-6
Soil nutriment -
Hardiness (USDA) 5-7

Usage

The acorns are eaten after leaching. The dried acorns are crushed in water for food. They are also dried and boiled. They can be baked slowly and mixed with salt and butter.
Uses beverage dye environmental use fiber fodder fuel material medicinal ornamental timber wood
Edible flowers seeds
Therapeutic use Antidiarrheal (bark), Dermatological Aid (bark), Disinfectant (bark), Emetic (bark), Febrifuge (bark), Gastrointestinal Aid (bark), Oral Aid (bark), Respiratory Aid (bark), Throat Aid (bark), Tonic (bark), Cough Medicine (bark), Gynecological Aid (bark), Panacea (bark), Tuberculosis Remedy (bark), Veterinary Aid (bark), Unspecified (bark), Pulmonary Aid (bark), Analgesic (bark), Antirheumatic (External) (bark), Cold Remedy (bark), Orthopedic Aid (bark), Hemorrhoid Remedy (bark), Antirheumatic (External) (root), Antidiarrheal (root), Urinary Aid (unspecified), Psychological Aid (unspecified), Witchcraft Medicine (unspecified), Dietary Aid (unspecified), Hemorrhoid Remedy (unspecified), Arthritis (unspecified), Astringent (unspecified), Burn (unspecified), Cancer (unspecified), Eye (unspecified), Fever (unspecified), Head (unspecified), Medicine (unspecified), Piles (unspecified), Rheumatism (unspecified), Sore (unspecified), Stomatitis (unspecified), Styptic (unspecified), Tonic (unspecified), Hemostat (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Plants are grown from seed. They can also be grown by cuttings.
Mode graftings seedlings
Germination duration (days) 120 - 365
Germination temperacture (C°) 10
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -29
Optimum temperature (C°) 12 - 28
Size -
Vigor -
Productivity -

Images

Leaf

Quercus alba leaf picture by Alfy (cc-by-sa)
Quercus alba leaf picture by Matthew Campbell (cc-by-sa)
Quercus alba leaf picture by Jesse Corriveau (cc-by-sa)

Flower

Quercus alba flower picture by Justin Welch (cc-by-sa)
Quercus alba flower picture by dredodo (cc-by-sa)
Quercus alba flower picture by Lyndon Chan (cc-by-sa)

Fruit

Quercus alba fruit picture by Matthew Campbell (cc-by-sa)
Quercus alba fruit picture by Aaron Harp (cc-by-sa)
Quercus alba fruit picture by Pl@ntNet (cc-by-sa)

Distribution

Quercus alba world distribution map, present in Åland Islands, Canada, Micronesia (Federated States of), Georgia, Malaysia, Nicaragua, and United States of America

Conservation status

Quercus alba threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:295763-1
WFO ID wfo-0000289457
COL ID 4R47Z
BDTFX ID -
INPN ID 630525
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Quercus ramosa Quercus candida Quercus nigrescens Quercus retusa Quercus alba f. repanda Quercus alba f. alba Quercus alba var. heterophylla Quercus alba var. latiloba Quercus alba var. longigemma Quercus alba var. microcarpa Quercus alba var. pinnatifida Quercus alba var. repanda Quercus alba var. ryderi Quercus alba var. subcaerulea Quercus alba var. subflavea Quercus alba f. latiloba Quercus alba f. pinnatifida Quercus alba f. sublyrata Quercus alba f. viridis Quercus repanda Quercus alba