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Populus tremuloides - Abies lasiocarpa / Tall Forbs Forest | Western Ecology Working Group of...
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Name: Populus tremuloides - Abies lasiocarpa / Tall Forbs Forest Reference: Western Ecology Working Group of... Description: This is a common aspen forest association in western Wyoming, and it also occurs in Utah and Idaho. It occurs from 2015 to 3110 m (6600-10,200 feet) in elevation. It often occurs on northerly or easterly exposures on moderately steep slopes. Soils were often derived from sandstone or limestone parent materials, but it is not restricted to those substrates. The upper canopy is dominated by <i>Populus tremuloides</i>, with a significant amount of conifers present, generally at least 10% cover, commonly <i>Abies lasiocarpa</i>, but <i>Pinus contorta</i> and <i>Picea engelmannii</i> can be present as well. There is no defined shrub layer, although shrub species are often present, such as <i>Amelanchier alnifolia, Symphoricarpos oreophilus</i>, and <i>Ribes montigenum</i>. The herbaceous layer is abundant and rich. Commonly encountered tall forbs include <i>Rudbeckia occidentalis, Eucephalus engelmannii (= Aster engelmannii), Valeriana occidentalis, Delphinium x occidentale, Heracleum maximum</i>, and <i>Osmorhiza occidentalis</i>. There are often many low-stature forbs as well, including <i>Thalictrum fendleri, Geranium</i> spp., <i>Osmorhiza berteroi (= Osmorhiza chilensis)</i>, and <i>Pseudostellaria jamesiana (= Stellaria jamesiana)</i>. This type is distinguished from similar aspen forests by the combination of conifers with aspen in the overstory, the lack of a distinct shrub layer (tall or dwarf), and abundant tall forbs.  Accession Code: VB.CC.32839.CEGL000533 Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Nov-2014 to: 01-May-2019
	status: accepted This Community's Level: association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.683327 NatureServe Explorer   Translated: Quaking Aspen - Subalpine Fir / Tall Forbs Forest   Scientific: Populus tremuloides - Abies lasiocarpa / Tall Forbs Forest   Code: CEGL000533