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Populus tremuloides Rocky Mountain Forest & Woodland Group | NatureServe Biotics 2019
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Name: Populus tremuloides Rocky Mountain Forest & Woodland Group Reference: NatureServe Biotics 2019 Description: This widespread group is more common in the southern and central Rocky Mountains but occurs in the montane and subalpine zones throughout much of the western U.S., south into northern Mexico and north into Canada. An eastern extension occurs along the Rocky Mountains foothill front, in mountain "islands" in Montana (Big Snowy and Highwood mountains), and the Black Hills of South Dakota. In California, this group is in the Sierra Nevada adjacent to the Great Basin. Large stands are found in the Inyo and White mountains, while small stands occur on the Modoc Plateau. Elevations generally range from 1525 to 3050 m (5000-10,000 feet), but occurrences can be found at lower elevations in some regions. Distribution of this group is primarily limited by adequate soil moisture required to meet its high evapotranspiration demand. Secondarily, it is limited by the length of the growing season or low temperatures. These are upland forests and woodlands dominated by <i>Populus tremuloides</i> without a significant conifer component (&lt;25% relative tree cover). The understory structure may be complex with multiple shrub and herbaceous layers, or simple with just an herbaceous layer. The herbaceous layer may be dense or sparse, dominated by graminoids and/or forbs. Associated shrub species include <i>Symphoricarpos</i> spp. (<i>Symphoricarpos oreophilus</i> being the most widespread and <i>Symphoricarpos albus</i> and <i>Symphoricarpos mollis</i> having limited distribution), <i>Rubus parviflorus, Amelanchier alnifolia, Prunus virginiana</i>, and <i>Arctostaphylos uva-ursi</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:40017-{9A24DC56-5C89-4DAC-B2A0-E6E81E7D3098} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 05-Jun-2013 to: ongoing
	status: accepted Community's Parent: Abies lasiocarpa - Picea engelmannii - Pinus albicaulis Rocky Mountain Forest Macrogroup This Community's Level: Group This Community's Children: Show/Hide   Acer grandidentatum Montane Forest Alliance   Betula papyrifera Rocky Mountain Forest & Woodland Alliance   Populus tremuloides Rocky Mountain Forest & Woodland Alliance   Populus tremuloides Southern Rocky Mountain Woodland & Scrub Alliance		Names:   UID: ELEMENT_GLOBAL.2.835793 NatureServe Explorer   Code: G222   Scientific: Populus tremuloides Rocky Mountain Forest & Woodland Group