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Trees of Iowa: An Interactive Key

Black Maple
(Acer nigrum)


Leaves are opposite simple.


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Iowa County Poweshiek County Jasper County Polk County Dallas County Guthrie County Audubon County Marshall County Story County Boone County Greene County Carroll County Washington County Keokuk County Mahaska County Marion County Warren County Madison County Louisa County Muscatine County Adair County Shelby County Crawford County Tama County Benton County Linn County Des Moines County Henry County Jefferson County Wapello County Monroe County Lucas County Clarke County Union County Cass County Adams County Montgomery County Mills County East Pottawattamie County West Pottawattamie County Harrison County Monona County Cedar County Jones County Lee County Van Buren County Davis County Appanoose County Wayne County Decatur County Ringgold County Taylor County Page County Fremont County Scott County Clinton County Jackson County Dubuque County Delaware County Buchanan County Black Hawk County Grundy County Hardin County Hamilton County Webster County Calhoun County Sac County Ida County Woodbury County Clayton County Bremer County Fayette County Chickasaw County Butler County Franklin County Wright County Humboldt County Pocahontas County Buena Vista County Cherokee County Plymouth County Floyd County Cerro Gordo County Hancock County Palo Alto County Clay County O'Brien County Sioux County Allamakee County Winneshiek County Howard County Mitchell County Worth County Winnebago County Kossuth County Emmet County Dickinson County Osceola County Lyon County

The black maple is found over most of Iowa, usually on low lands and moist slopes. It is very similar to the sugar maple  and is often mistaken for it.

Black Maple Leaves Black Maple Fruit

The leaves are three to five lobes, but with the lobes sharp pointed and not so deeply cut as the sugar maple.  The leaves are dull green above and yellow-green below with soft hairs, especially along the yellow veins.  The margins of the leaves droop, making them appear somewhat wilted.

Hardiness: Maples vary in hardiness. Most fall into zones 4 through 8, but some are less tolerant of cold or heat than others. When selecting a maple tree, be sure to select a species suited for Iowa’s weather.

Growth Rate:
Maples vary in growth rate. Maples that are fast growing tend to have weak wood and may suffer from wind and ice damage. Slower growing maples have heavier, harder wood, making them less susceptible to branch and limb drop.

Mature Shape:
Maples typically have a large, rounded crown. Tree canopies may be very dense or wide spreading.

Height:
Mature height varies with species.

Width:
Width varies with species.

Site Requirements:
Maple trees perform best in moist, well-drained soils. Site requirements vary with the species of maple.

Flowering Dates:

Seed Dispersal Dates:

Seed Bearing Age:

Seed Bearing Frequency:

Seed Stratification:

The twigs are stout, light to dark gray, smooth and opposite on the stems. The fruit is a pair of winged seeds, ripening in autumn. The bark is very similar to the sugar maple, except that it is usually darker.

 

Click on a thumbnail image below to view a larger picture.

Black Maple Fruit Black Maple Leaves