Common Name: Black Maple
Scientific Name: Acer nigrum
Leaf: Deciduous; appearing wilted, these blades are dark green above; densely brownish and velvety beneath with three palmate lobes (sometimes five lobes) separated by open shallow notches; edged with few irregular blunt-pointed teeth; stalks hairy and leaves turn yellow to brownish in autumn.
Flower: Yellowish; small and unixexual with male and female flowers mixed or in separate clusters; they hang on slender, hairy 1.8-5 cm long stalks, near branch tips.
Fruit: Green to brown pairs of winged keys about 3 cm long with plump seedcases; keys on hairy stacks about the same length as the wings; paired keys may separate when shed, leaving the stocks on the tree.
Twig: Reddish-brown; dull and hairy; twigs are straight; the buds are greyish-brown, pointed, 3-5 mm long at twig tips.
Bark: Dark grey with long, narrow, vertical and firm irregular ridges; deeply furrowed, often scaly.
Wood: Heavy; hard; strong; pale yellowish-brown.
Facts About this Tree:
1. This type of tree is used for furniture, plywood, flooring and fixtures.
2. The sap from these trees can also be used to make maple syrup and sugar.
3. The ends of the lobes of these flimsy leaves curve downwards and give the appearance of the tree needing water.
Diameter (DBH): 48.8 cm
Last Year Modified: 2015
Carbon Stored in this Tree: 638.691 kg of C
Equivalent CO2: 2341.633 kg of C
1. Farrar, J. L. 2007. Trees in Canada. ON. Canadian Forest Service.
2. Kershaw, Linda. 2001. Trees of Ontario. Edmonton, AB Canada. Lone Pine Publishing.
3. Hosie, R.C. 1973. Native Trees of Canada, ON. Canadian Forestry Service.
Copyright 2015Association for Canadian Educational Resources
You may have noticed a small house like structure on your way into the Conservation Area. The Etobicoke Field Studies Centre, operated by the Toronto District School Board, offers unique programming for grades 1-6, educating Toronto students about the natural features of this area and region.