B ox elder

(1)

B ^{ox elder}

(Acer negundo) Order

Family Genus Species

Classification

2 1

3

4

74

Sapindales Aceraceae

Acer

A. negundo (Linnaeus, 1753)

Originated in North America. Introduced in France in the 1800s as an ornamental tree.

D escriptif

n Large tree, height up to 15 to 25 metres

n Opposing leaves, comprising 3 to 7 oval leaflets, irregularly indented

n Dioecious species

n Flowers in hanging clusters, without petals, with long pedicels

n Fruit made up of double samaras at an acute angle

n Cordate root system providing very little stability

E cology and reproduction

n Sexual reproduction via the samaras

n Can also produce suckers

n Can produce numerous new shoots after being cut

n Alluvial areas are the preferred habitat

D ocumentation

n Hudin S., Vahrameev P. (coord.) 2010. Guide d’identification des plantes exotiques envahissant les milieux aquatiques et les berges du bassin Loire-Bretagne. Fédération des conservatoires d’espaces naturels, 45 pp.

n Muller S. (coord.) 2004. Plantes invasives en France : état des connais- sances et propositions d’actions. Muséum national d’Histoire naturelle, Paris, 168 pp.

Author: Emilie Mazaubert, Irstea

B ox elder

B ox elder

D escriptif

E cology and reproduction

D ocumentation

R ip ar ia n pl an ts

B ^{ox elder}