Acer macrophyllum (Big Leaf Maple)


Botanical Information

FamilySapindaceae (Aceraceae)
GenusAcer
Speciesmacrophyllum
CategoryWoody
TypeTree (deciduous)
OriginCanada and United States of America.

Details

USDA Hardiness Zone6
USDA Hardiness Ref.
Canadian Hardiness Zone5 - 6a
Canada Hardiness Ref.
RHS Hardiness ZoneH7 - H6
RHS Hardiness Ref.
Temperature (°C)(-23) - (-18)
Temperature (°F)(-10) - 0
Height15-48 m
GrowthFast
Flowering PeriodMarch, April, May

Description and Growing Information

General DescriptionA large tree with a trunk that can be as a large as 1 m in diameter. This species has been placed on the IUCN Red List as least concern.
ShapeNarrow crown.
Notable SpecimensWestonbirt, The National Arboretum, Tetbury, Gloucestershire, England.
Bark/Stem DescriptionSmooth and greyish-brown in youth, turns a darker brown and develops shallow groves as it matures.
Leaf DescriptionOpposite, up to 28 cm in diameter, 5 deep lobes, dark lustrous green above, paler and pubescent beneath turning orange in autumn.
Flower DescriptionFlowers are yellow, 3 mm in diameter, grouped in hanging racemes and fragrant.
Fruit DescriptionWinged samaras.

Photographs