Alberta, Canada
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Ash-leaved Maple
Acer negundo
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Also known as - Manitoba Maple, Box Elder.

Native to Alberta. Perennial.

General Description

By Gustave J. Yaki

Introduced from eastern and central N. America, perhaps extending naturally into Alberta along the S. Saskatchewan River. Small, often sprawling, fast-growing tree, to 15m tall, commonly planted or self-seeded throughout city. Leaves, opposite; irregularly coarsely toothed or lobed, segmented (pinnately compound) like ash trees, into 3-9 leaflets, yellow in autumn. Twigs, moderately stout, hairless, shiny purplish-green, often coated with whitish waxy ?bloom? that easily rubs off. Flowers, sexes on separate trees, with pale green sepals; males on long, slender, single red tassel in clusters, females in a loose green drooping clusters on a central stem; April-May. Seeds, wrinkled, wings incurved, angled less than 45 degrees, mature in autumn, often remain attached overwinter; a favourite food of Evening Grosbeaks. Habitat: prefers moist sites, disturbed areas; intolerant of shade.

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Where to find Ash-leaved Maple in Alberta   

There is currently no information regarding this species in our Where & When database.

Interesting Facts about Ash-leaved Maple   

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Ash-leaved Maple Stories from our Readers   

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Recent Ash-leaved Maple Reports in Alberta


Abundance Location Reporter Date
Present Gaetz Lakes Sanctuary Blake 2011/05/18
Present Fairview Escarpment Blake 2011/05/13
Present Maskepetoon Blake 2010/06/06
Present Oriole Park Blake 2010/04/25
Present Piper Creek Blake 2009/07/24

Ash-leaved Maple Hotspots in Alberta

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