Trees by Genus

Genus 'Populus'

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Populus alba
Populus balsamifera
Populus x canadensis
Populus x canadensis 'Regenerata'
Populus x canadensis 'Robusta'
Populus canescens
Populus deltoides
Populus grandidentata
Populus lasiocarpa
Populus nigra
Populus nigra 'Italica'
Populus nigra var. betulifolia
Populus tremula
Populus tremuloides
Populus trichocarpa

Populus tremuloides (American Aspen)

Populus tremuloides

Also known as: Quaking Aspen

Native: A large of area of North America, in Canada south of the tundra, western United States from Mexico northwards

Location: Occasionally cultivated in Europe.

Usually half the size in cultivation.

Flowers

No sample available

Flowers open in February and March, male catkins pinkish with long silvery hairs about 5cm long, and more slender than those of the Aspen (Populus tremula). They have flattened stems causing them to quake in the wind.

Fruits

No sample available

Fruiting catkins are about 15cm long and release white cottony seeds in May.