Acer nigrum

Acer nigrum
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Sapindales
Family: Sapindaceae
Genus: Acer
Species: A. nigrum
Binomial name
Acer nigrum
F.Michx.
Acer nigrum natural range

Acer nigrum (Black maple) is a species of maple closely related to A. saccharum (sugar maple), and treated as a subspecies of it by some authors, as Acer saccharum subsp. nigrum.[1][2]

Identification can be confusing due to the tendency of the two species to form hybrids. The simplest and most accurate method for distinguishing between the two trees is the generally three-lobed leaves of the black maple versus the generally five-lobed leaves of the sugar maple. The leaves of the black maple also tend to have a "droopy" appearance. Other differences that are not as pronounced include darker, more deeply grooved bark, slightly smaller seeds, and thicker petioles. Hybrids are intermediate in their characteristics.

The geographic range of A. nigrum is slightly more limited than the sugar maple, encompassing much of the Midwestern United States, portions of the Eastern United States, and the southeast of Canada in southern Ontario.[3]

The black maple's mature height ranges from 21 to 34 meters (70 to 110 feet).[4]

This species is used similarly to the A. saccharum, for timber and landscaping, and for maple syrup production.

Illustration from 1913's Illustrated flora of the northern states and Canada

See also

References

  1. ↑ USDA Plants Profile: Acer nigrum
  2. ↑ Germplasm Resources Information Network: Acer saccharum subsp. nigrum
  3. ↑ "Acer nigrum Range Map" (PDF). United States Geological Survey. Retrieved 2008-03-06.
  4. ↑ "USDA Forest Service Guide to Black Maple". USDA Forest Service. Retrieved 2014-08-24.

External links

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