Large-toothed Aspen

About Large-toothed Aspen in Alberta

Large-toothed Aspen is a Canadian native aspen, but the current evidence does not place it in the accepted native Alberta flora. In Alberta it should be treated as not native to the province unless strong local evidence proves otherwise, and any record deserves careful documentation because trembling aspen variation and hybrid influence can imitate parts of the profile. For ARA, a verified Alberta tree would matter through rarity, provenance, out-of-range significance, or interpretive value rather than as an ordinary native aspen heritage tree.

Identification: Leaves are the main identification feature. They are broader and edged with large, coarse, uneven teeth, which separates the species from typical trembling aspen. Like other aspens, the leaves are carried on flattened petioles and can tremble in light wind, so leaf motion is not enough. Check mature crown leaves rather than relying only on vigorous sucker leaves.

Alberta range and habitat: Large-toothed Aspen is not accepted as native to Alberta in the current accepted evidence. Alberta wild occurrence should not be assumed.