Populus consists of deciduous trees that typically grow rapidly and reach substantial sizes. These trees exhibit a dioecious reproductive system, with male and female catkins found on separate specimens, blooming prior to leaf emergence. The male catkins are generally more visually appealing, while the female catkins can be problematic due to their production of cottony seeds that are dispersed by the wind.

Populus nigra 'Lombardy Gold' (m)

Populus nigra 'Plantierensis' (m)

Populus nigra (f) is a sizable, deciduous tree that can reach heights of up to 20 meters. It features a rounded form and distinctive, deeply furrowed bark. The tree produces glossy, diamond-shaped leaves and yellow-green catkins that emerge in early spring, prior to leaf unfurling, and are primarily wind-pollinated. This species is well-suited to challenging conditions, including exposed locations and waterlogged soils, making it an excellent option for shelterbelts, woodlands, and parks. However, it is experiencing a decline and is classified as an endangered species in the UK.

Populus nigra (f)

Populus nigra (m)

Populus nigra subsp. betulifolia is a robust, deciduous tree capable of reaching heights of up to 30 meters. It features coarse, dark grey bark and downy young shoots. The leaves are triangular to ovate in shape, measuring around 10 centimeters in length. In early spring, this species produces red male or green female catkins.

Populus nigra subsp. betulifolia

Populus nigra subsp. betulifolia (f)

Populus nigra subsp. betulifolia (m)

Populus nigra var. viadri

Populus purdomii is a rapidly growing, deciduous tree that can reach heights of up to 30 meters. In spring, the leaves appear with a copper hue, transitioning to a deep green as the season progresses, and finally shifting to yellow in the fall. The bark exhibits a pale silver-gray coloration.

Populus purdomii

Populus rotundifolia

Populus rubra

Populus sieboldii is a rapidly growing deciduous tree that can reach heights of up to 20 meters. Its leaves are green on the upper surface and silver beneath, featuring a rounded shape with gently serrated margins. In the fall, the foliage transitions to a light yellow hue.

Populus sieboldii

Populus simonii

Populus simonii 'Fastigiata'

Populus simonii 'Obtusata'

Populus suaveolens

Populus szechuanica

Populus szechuanica var. tibetica

Populus tibetica

Populus tomentosa

Populus tremula is a sizable deciduous tree characterized by its expansive crown and tendency to produce suckers. The leaves are rounded, displaying a bronze hue during their early growth, and they exhibit a distinctive trembling motion in response to gentle winds. In the fall, the foliage shifts to a yellow coloration. Male specimens develop woolly, grey catkins.

Populus tremula

Populus tremula 'Erecta' is a tall, upright cultivar of aspen, believed to have originated in Sweden. This fast-growing variety features leaves that produce notable autumn hues. In spring, it produces male catkins.

Populus tremula 'Erecta'

Populus tremula 'Gigas'

Populus tremula 'Pendula' (m)

Populus tremula 'Tapiau'

Populus tremuloides

Populus tremuloides 'Pendula'

Populus tremuloides Prairie Gold ('Ne Arb')

Populus trichocarpa

Populus trichocarpa 'Columbia River' (m)

Populus trichocarpa 'Fritzi Pauley' (f)

Populus trichocarpa 'Scott Pauley' (m)

Populus trichocarpa 'Trichobel'

Populus unal

Populus wilsonii is a rapidly growing, deciduous tree that can reach a height of 25 meters. The leaves are characterized by their elongated petioles, which cause them to sway in the breeze. In spring, new foliage appears with a copper hue, transitioning to a dark green as the season progresses, and eventually shifting to yellow in the fall.

Populus wilsonii

This rapidly growing deciduous tree typically reaches a height of approximately 20 meters. It features broadly oval to diamond-shaped leaves that are glossy green, with edges that are bluntly serrated and tips that taper to a point. When the leaves first emerge, they emit a noticeable fragrance. In the spring, slender catkins appear, and on female trees, these develop into fluffy white seeds as they mature.

Populus x acuminata

This deciduous tree grows quickly, reaching heights of about 25 meters. It features a columnar shape and broadly oval leaves that taper to a point, displaying bluntly serrated edges and pale green undersides. In spring, it produces slender catkins, with the male catkins showcasing orange-red flowers.

Populus x berolinensis

Populus x berolinensis 'Petrowskyana' is a rapidly growing deciduous tree that can reach heights of approximately 25 meters. It features angled branches and broadly oval leaves that taper to a point, characterized by bluntly serrated margins and light green undersides. In spring, the tree produces slender green catkins.

Populus x berolinensis 'Petrowskyana' (f)

This deciduous tree grows rapidly, reaching heights of approximately 25 meters. It features broad, oval green foliage with softly serrated margins. The leaves emit a pleasant aroma when they first unfurl, and slender catkins appear in the spring.

Populus x berolinensis 'Rumford'

Populus x canadensis is a rapidly growing deciduous tree that can reach heights of 35 meters. This hybrid exhibits variability in form, typically presenting a conical or columnar shape. The leaves are glossy green, varying from triangular to oval, with scalloped margins and pointed tips. In early spring, slender catkins emerge; male trees bear catkins adorned with red flowers.

Populus x canadensis

Populus x canadensis 'Af13'

Populus x canadensis 'Af16'PBR

Populus x canadensis 'Af18'PBR

Populus x canadensis 'Agora'PBR

Populus x canadensis 'Aleramo'PBR

Populus x canadensis 'Arno'

Populus x canadensis 'Aurea' is a robust deciduous tree that can reach heights of 25 meters or more, exhibiting a broadly conical shape. The leaves are ovate and start as a vibrant golden-yellow in early summer, transitioning to a greener hue as the season progresses, while still providing a notable yellow display in the fall.

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