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Leaf size is very variable even on a single tree, typically with small leaves on side shoots, and very large leaves on strong-growing lead shoots. The leaves often turn bright gold to yellow before they fall during autumn. [2] [3] The seeds of the poplar tree are easily dispersed by the wind, due to the fine hairs surrounding them.
A mature tree. Populus deltoides is a large tree growing to 20–30 m (65–100 ft) tall and with a trunk up to 2.8 m (9 ft 2 in) diameter, one of the largest North American hardwood trees. The bark is silvery-white, smooth or lightly fissured when young, becoming dark gray and deeply fissured on old trees. Bark of a mature tree
Bigtooth aspens produce seeds from wind-pollinated flower clusters, known as catkins. The tree is dioecious, meaning that male and female flowers are on separate trees, which flower from mid-April to mid-May depending on the climate zone. The seed, a two-valved capsule, is distributed widely by the wind. Seed production begins around 10 years old.
Populus trichocarpa, the black cottonwood, [1] western balsam-poplar [2] or California poplar, is a deciduous broadleaf tree species native to western North America. It is used for timber , and is notable as a model organism in plant biology .
Many of the cottonwoods grown commercially are the hybrid of eastern cottonwood and black poplar, Populus × canadensis (hybrid black poplar or Carolina poplar). Cottonwood bark is often a favorite medium for artisans. The bark, which is usually harvested in the fall after a tree's death, is generally very soft and easy to carve.
Populus balsamifera, commonly called balsam poplar, [3] bam, [4] bamtree, [2] eastern balsam-poplar, [5] hackmatack, [2] tacamahac poplar, [2] tacamahaca, [2] is a tree species in the balsam poplar species group in the poplar genus, Populus. The genus name Populus is from the Latin for poplar, and the specific epithet balsamifera from Latin for ...
The tree produces spiky green fruits about the size of a golf ball, which turn brown and drop off the tree over an extended period beginning in fall and continuing over the winter.
Populus alba, commonly called silver poplar, [3] [4] silverleaf poplar, [3] [4] white poplar, [3] [4] or abele is a species of poplar, most closely related to the aspens (Populus sect. Populus). It is native to a region spanning from the Atlas Mountains of Africa, through most of South and Central Europe, into Central Asia; it has been ...