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Picea engelmannii / Physocarpus malvaceus Forest | Western Ecology Working Group of...
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Name: Picea engelmannii / Physocarpus malvaceus Forest Reference: Western Ecology Working Group of... Description: This forest association occurs in mountainous areas within a rather restricted area on calcareous soils on the northern flank of the Absaroka range in south-central Montana, and from the Clark's Fork of the Yellowstone River in northwestern Wyoming. The type is found on cool, moist aspects with gentle to steep slopes between 1800 and 2200 m (5900-7200 feet) elevation. <i>Picea engelmannii</i>, as well as the <i>Picea engelmannii x glauca</i> hybrid, are the diagnostic species and can occur as the forest overstory in mature late-seral stands, or in the understory in younger age classes. The predominantly calcareous substrates favor <i>Pseudotsuga menziesii</i> as the leading seral dominant; <i>Pinus contorta</i> and occasionally <i>Abies lasiocarpa</i> occur scattered at higher elevations. The shrub undergrowth is primarily <i>Physocarpus malvaceus</i>, a deciduous species of moderate height. Other common associated shrubs include <i>Symphoricarpos albus</i> and <i>Spiraea betulifolia</i>. <i>Actaea rubra</i> and <i>Galium triflorum</i> are usually present. The dominance of <i>Picea engelmannii</i> in the overstory, evidence of <i>Picea</i> reproduction in the understory, and the presence of <i>Physocarpus malvaceus</i> distinguish this plant association from other associations which could occur in similar habitats.  Accession Code: VB.CC.33551.CEGL002676 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.2.687572 NatureServe Explorer   Translated: Engelmann Spruce / Mallow Ninebark Forest   Scientific: Picea engelmannii / Physocarpus malvaceus Forest   Code: CEGL002676