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Agrostis scabra Temporarily Flooded Herbaceous Alliance | Western Ecology Working Group of...
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Name: Agrostis scabra Temporarily Flooded Herbaceous Alliance Reference: Western Ecology Working Group of... Description: Stands included in this grassland alliance occur on sand and gravel bars along streams between 1700-2400 m in montane Idaho. Stands can be located in narrow canyons with fast-moving streams to moderately wide valleys on low-gradient streambanks. Stands are usually found along active river channels, but can also occur within abandoned channels where the water table is shallow. Larger stands may become established on mudflats left behind by failed beaver dams. Sand and gravel bars are colonized after disturbance by the diagnostic species, the perennial grasses Agrostis scabra or Agrostis exarata, which may or may not dominate the stand. Species composition is otherwise diverse and often includes Carex lenticularis, Torreyochloa pallida var. pauciflora (= Puccinellia pauciflora), and Salix exigua (less than 5% shrub cover) on sand bars, and Elymus caninus, Epilobium ciliatum ssp. glandulosum (= Epilobium glandulosum), Sagina sp., and Stellaria longipes on gravel bars. Other species of Salix and occasionally Cornus sericea or Alnus incana may occur as stunted shrubs scattered on the bars. Herbaceous vegetation does not form continuous cover with at least 40% bareground. Sandbars are usually more densely vegetated than gravel bars. Adjacent vegetation can include riparian forests, woodlands, shrublands, and wet or dry meadows.  Accession Code: VB.CC.27029.AGROSTISSCABRAT Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 01-May-2019
	status: accepted This Community's Level: Alliance This Community's Children: [none]		Names:   Scientific: Agrostis scabra Temporarily Flooded Herbaceous Alliance   Translated: Rough Bentgrass Temporarily Flooded Herbaceous Alliance   UID: HIGHER_CLASS_UNIT.2.124922 NatureServe Explorer   Code: A.1351