Fraxinus pennsylvanica
Red ash
4
Nom français: Frêne rouge, frêne de Pennsylvanie
Description 4
Fraxinus pennsylvanica is a medium-sized deciduous tree reaching 12–25 m. The bark is smooth and gray on young trees, becoming thick and fissured with age (which forms hexagonal patterns that looks like diamonds I find). The winter buds are reddish-brown, with a velvety texture. Leaves are 15–30 cm long, pinnately compound with seven to nine leaflets with serrated margins and short but distinct, downy petiolules a few millimeters long. The downy petioles and twigs is a good way to tell this species appart from the white, black and green ashes. It's fruits are elongated 3-6cm samaras held in compact panicles and typically produced in June.
Ecology 4
Found in Southern QC and almost all of eastern US, all the way down to Florida. It's natural habitat is almost exclusively stream sides and bottomlands. It has also been widely planted in streets and park: green ash is the most common tree in Montreal. The extensive use of this species as an ornemental tree has facilitated the spread of the emerald ash borer, a beetle introduced accidentally from Asia which represents a serious threat to ash trees in North America.
Uses 4
Hardwood. Would be of lesser quality than the green ash, but used in similar ways (tools, musical instruments, skis, etc.).
Fontes e Créditos
- (c) Sean Blaney, alguns direitos reservados (CC BY-NC), uploaded by Sean Blaney
- (c) William Jacobi, Colorado State University, Bugwood.org, alguns direitos reservados (CC BY), http://commons.wikimedia.org/wiki/File:Ash_Yellows_Witches%27-broom.jpg
- (c) Photo by David J. Stang, alguns direitos reservados (CC BY-SA), http://commons.wikimedia.org/wiki/File:Fraxinus_pennsylvanica_16zz.jpg
- (c) Alice Roy-Bolduc, alguns direitos reservados (CC BY-SA)
