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Populus tremuloides is a deciduous tree native to cooler areas of North America, one of several species referred to by the common name aspen.It is commonly called quaking aspen, [2] [3] [4] trembling aspen, [2] [3] American aspen, [3] mountain or golden aspen, [5] trembling poplar, [5] white poplar, [5] and popple, [5] as well as others. [5]
In North America, the aspen is referred to as quaking aspen or trembling aspen because the leaves "quake" or tremble in the wind. This is due to their flattened petioles which reduce aerodynamic drag on the trunk and branches. Aspen trees near Crested Butte, Colorado
Populus tremula (commonly called aspen, common aspen, Eurasian aspen, European aspen, or quaking aspen) [2] is a species of poplar native to cool temperate regions of the Old World. Description [ edit ]
Pando aspen grove at Fishlake National Forest. Pando (from Latin pando 'I spread') [1] is the world's largest tree, a quaking aspen (Populus tremuloides) located in Sevier County, Utah, United States, in the Fishlake National Forest.
Quaking aspen (Populus tremuloides) is the predominant species in aspen stands in the Great Lakes region, but bigtooth aspen dominates on drier, upland sites. Aspen stands dominated by bigtooth aspens are generally more open than those dominated by quaking aspens. It is more disease resistant than P. tremuloides.
The U.S. Preventive Services Task Force released a draft recommendation advising against using vitamin D to prevent falls and fractures in people over 60. Pharmacist Katy Dubinsky weighs in.
Mature trembling aspen trees (Populus tremuloides) with young regeneration in foreground, in Fairbanks, AlaskaThe genus has a large genetic diversity, and can grow from 15–50 m (49–164 ft) tall, with trunks up to 2.5 m (8 ft) in diameter.
Neither the United States nor China would win a trade war, the Chinese Embassy in Washington said on Monday, after U.S. President-elect Donald Trump threatened to slap an additional 10% tariff on ...