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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 .
Light burning is also been called "Paiute forestry," a direct but derogatory reference to southwestern tribal burning habits. [52] The ecological impacts of settler fires were vastly different than those of their Native American predecessors. Cultural burning practices were functionally made illegal with the passage of the Weeks Act in 1911. [53]
I scanned the trees and saw that a maple tree had "exploded". The explosion caused a big crack in the tree about three feet high. When a winter wind stirs the frozen trees, they sometimes appear to burst vertically. When it was 40 degrees below zero at night, I lay awake and listened to the trees explode. That's a true wilderness thermometer!
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
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 ]
The balm-of-Gilead (Populus × jackii), also known as P. × gileadensis, is the hybrid between P. balsamifera and the eastern cottonwood (P. deltoides), occurring occasionally where the two parental species' ranges overlap. This hybrid is also sometimes planted as a shade tree, and sometimes escapes from cultivation. [9]
Populus heterophylla, also known as downy poplar, [2] swamp poplar [2] and swamp cottonwood, [3] is a large deciduous poplar belonging to the Populus genus of the family Salicaceae. This species can grow on sites that have too much water for other native poplars. [ 4 ]