Acer saccharum Marshall

Sugar maple (en), Érable à sucre (fr)

Species

Angiosperms > Sapindales > Sapindaceae > Acer

Characteristics

Climax tree to 40 m; bark medium-gray, becoming roughened with loose-edged plates; lvs flat, about as wide as long, usually glabrous beneath except for a few tufts of hairs in the vein-axils, (3)5-lobed with rounded sinuses, the lobes usually bearing a few large sharp teeth, the central lobe usually with nearly parallel sides to a pair of large teeth at about mid-length; fls in umbels from the terminal or uppermost lateral buds, appearing as the lf-buds open, drooping on slender, hairy pedicels to 8 cm; cal gamosepalous, 2.5–6 mm, ± hirsute; pet none; disk extrastaminal; ovary and fr glabrous; mericarps of the fr 2.5–4 cm, the seed-bearing basal parts diverging at right angles to the pedicel, the wings curved forward, divergent at an angle of 120° or less; 2n=26. Rich to fairly dry woods, especially in calcareous soils; N.S. and N.B. to Minn. and e. S.D., s. to N.J., Del., w. Va., n. Ga., Tenn., and Mo. (Saccharodendron s.; Acer saccharophorum) Plants intermediate toward A. barbatum, occurring along the s. boundary of our range, have been called var. schneckii Rehder, or var. regelii (Pax) Rehder, the latter name however based on a specimen of A. barbatum. Spp. 2–4 often treated as parts of a single sp.
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A deciduous broad leafed tree. It grows 40 m high and spreads 10 m across. The stem is stout. It has grey bark. There are lines running up the bark on the trunk. Branches from low down. The leaves are dark green on top and silvery on the under side. The leaves are divided like the fingers on a hand. There are 5 leaf lobes with teeth like edges to the leaf. The leaves are 8-18 cm long. The leaves turn bright orange, red or yellow in the autumn. The flowers are greenish-yellow. They occur in branched stalks with a flat top. These stick upwards. The seeds occur in central containers with wings at a slight angle. There are many cultivated varieties.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) 10.0
Mature height (meter) 30.0
Root system -
Rooting depth (meter) 1.15
Root diameter (meter) 0.4
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It is a temperate plant. A plant native to north America. It requires light fertile soils. It needs a protected position and can stand shade when young but full sun when mature. It is frost resistant but drought tender. It cannot tolerate coastal locations. It cannot tolerate pollution. It suits hardiness zones 4-8. Arboretum Tasmania.
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Found in a variety of soil types, doing best in deep rich well-drained soils from sea level to 1,600 metres. Rich usually hilly woods.
Light 3-8
Soil humidity 4-6
Soil texture 1-6
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 3-7

Usage

The sweet sap is eaten. The seeds have also been eaten but contain poisonous substances.
Uses beverage environmental use fiber food material medicinal poison timber wood
Edible barks flowers nectars saps seeds
Therapeutic use Eye Medicine (bark), Pulmonary Aid (bark), Cough Medicine (bark), Expectorant (bark), Unspecified (fruit), Dermatological Aid (leaf), Eye Medicine (sap), Unspecified (sap), Blood Medicine (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

It is grown from ripened seed. The seed need to be in the seed bed and left undisturbed for 4 years. Trees produce shoots near the base when the tree is cut down and if covered with soil these quickly develop roots. Trees should be 8 m apart.
Mode cuttings graftings seedlings
Germination duration (days) 30 - 365
Germination temperacture (C°) 11 - 12
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -38
Optimum temperature (C°) 14 - 24
Size -
Vigor -
Productivity -

Images

Leaf

Acer saccharum leaf picture by Sasha Boucher (cc-by-sa)
Acer saccharum leaf picture by Otto (cc-by-sa)
Acer saccharum leaf picture by Isabelle Ouellet (cc-by-sa)

Distribution

Acer saccharum world distribution map, present in Canada, Korea (Democratic People's Republic of), Russian Federation, and United States of America

Conservation status

Acer saccharum threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:56795-1
WFO ID wfo-0000515026
COL ID 94JK
BDTFX ID 120951
INPN ID 79776
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Acer palmifolium f. glaucum Acer saccharophorum f. glaucum Acer saccharum f. euconcolor Saccharodendron saccharum Acer palmifolium Acer saccharophorum Acer saccharum Saccharodendron hispidum Acer saccharum f. saccharum Acer hispidum Acer saccharum f. hispidum Acer saccharum f. integrilobum Acer saccharum f. pubescens Acer saccharum f. rubrocarpum Acer saccharum f. subvestitum Acer saccharum f. truncatum Acer subglaucum Acer treleaseanum Acer nigrum var. glaucum Acer nigrum subsp. saccharophorum Acer palmifolium var. concolor Acer palmifolium var. glaucum Acer saccharinum var. glaucum Acer saccharinum var. viride Acer saccharophorum var. subvestitum Acer saccharum var. quinquelobulatum Acer saccharum var. viride Acer subglaucum var. sinuosum Acer barbatum f. commune Acer palmifolium f. euconcolor Acer palmifolium f. glabratum Acer palmifolium f. integrilobum Acer saccharophorum f. angustilobatum Acer saccharophorum f. conicum Acer saccharum f. angustilobatum Acer saccharum f. conicum Acer saccharum f. glabratum Acer saccharum f. villipes Acer saccharum f. villosum Acer saccharum var. saccharum Acer saccharum subsp. saccharum Acer saccharinum var. glaucum

Lower taxons

Acer saccharum subsp. grandidentatum Acer saccharum subsp. leucoderme Acer saccharum subsp. nigrum Acer saccharum var. rugelii Acer saccharum var. schneckii Acer saccharum var. sinuosum Acer saccharum subsp. skutchii Acer saccharum subsp. floridanum