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Populus angustifolia, commonly known as the narrowleaf cottonwood, [2] is a species of tree in the willow family . It is native to western North America, where it is a characteristic species of the Rocky Mountains and the surrounding plains. [ 3 ]
It is a riparian zone tree. It occurs throughout the eastern United States, parts of southern Canada, and northern Mexico. The leaves are alternate and simple, with coarsely toothed (crenate/serrate) edges, and subcordate at the base. The leaf shape is roughly triangular, hence the species name, deltoides. Their winter buds are enrobed in a ...
The Balmville Tree (felled in 2015 at approximately 316 years old) was the oldest eastern cottonwood in the United States. [ 14 ] The US national champion Populus deltoides var. deltoides is located in Beatrice, Nebraska and measures 27 m (88 ft) tall, 33 m (108 ft) wide.
Aug. 12—Q: My neighbor and I share a healthy cottonwood on our property line. It seems that all of a sudden it has started dropping some yellow leaves. Isn't it too early for the tree to start ...
Populus fremontii, commonly known as Frémont's cottonwood, [1] is a cottonwood (and thus a poplar) native to riparian zones of the Southwestern United States and northern through central Mexico. [2] It is one of three species in Populus sect. Aigeiros. The tree was named after 19th-century American explorer and pathfinder John C. Frémont.
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 .
The leaves are spirally arranged, and vary in shape from triangular to circular or (rarely) lobed, and with a long petiole; in species in the sections Populus and Aigeiros, the petioles are laterally flattened, so that breezes easily cause the leaves to wobble back and forth, giving the whole tree a "twinkling" appearance in a breeze. Leaf size ...
Eastern cottonwood: Populus deltoides: 1972 [35] Nevada: Single-leaf pinyon: Pinus monophylla: 1959 [36] Great Basin bristlecone pine: Pinus longaeva: 1987 [36] New Hampshire: American white birch: Betula papyrifera: 1947 [37] New Jersey: Northern red oak: Quercus rubra: 1950 [38] New Mexico: Piñon pine: Pinus edulis: 1949 [39] New York: Sugar ...