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Ligusticum porteri Herbaceous Alliance | Western Ecology Working Group of...
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Name: Ligusticum porteri Herbaceous Alliance
Reference: Western Ecology Working Group of...
Description: This alliance includes forb-dominated subalpine meadows from the Colorado Rocky Mountains. Stands occur below treeline at elevation from 2900-3800 m in swales, depressions and protected areas. Sites may be flat to steeply sloped, but all are moist during most of the growing season. Soils are moderately deep; the upper horizons are well-drained, but stay moist because of a slowly permeable dense clay in the lower horizons. Stands have a dense herbaceous layer about 1 m tall that is dominated by the perennial forb Ligusticum porteri. This vegetation has high species richness. Other associated species include forbs such as Vicia americana, Lathyrus lanszwertii var. leucanthus (= Lathyrus leucanthus), Geranium viscosissimum var. viscosissimum, and Helianthella quinquenervis from lower elevation stands, and Lupinus parviflorus ssp. myrianthus, Geranium viscosissimum var. incisum (= Geranium nervosum), Senecio crassulus, and Polygonum bistortoides (= Bistorta bistortoides) from the upper subalpine/alpine ecotone. A few graminoids are frequent like Elymus trachycaulus, Festuca thurberi, Phleum alpinum (= Phleum commutatum), Poa alpina, or Trisetum spicatum, but have sparse cover. 
Accession Code: VB.CC.23617.LIGUSTICUMPORTE
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: Ligusticum porteri Herbaceous Alliance
  Translated: Porter's Wild Lovage Herbaceous Alliance
  UID: HIGHER_CLASS_UNIT.2.125615 NatureServe ExplorerNatureServe Explorer logo
  Code: A.1601