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Alnus oblongifolia Temporarily Flooded Forest Alliance | Western Ecology Working Group of...
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Name: Alnus oblongifolia Temporarily Flooded Forest Alliance Reference: Western Ecology Working Group of... Description: Examples of this alliance are found in montane riparian zones of the dry southern mountains of New Mexico and Arizona. Elevations where it may be found range from 1050 m to just over 2400 m. Flowing or standing water is always present in the streambed, and stream gradients appear to range from nearly flat to moderately steep. No other information on environment is available. Stands dominated by Alnus oblongifolia are found at lower elevations than those in similar riparian zones that are dominated by Alnus incana, upper montane Salix spp. or Picea pungens. Riparian vegetation at lower elevations is dominated by Platanus wrightii, Fraxinus velutina, or Juglans major. This alliance is characterized by the abundance of Alnus oblongifolia in a tall-shrub/small-tree canopy layer. At lower elevations of its range, Acer negundo, Fraxinus velutina, Juglans major, Cupressus arizonica, or Platanus wrightii may be codominant. At higher elevations, codominants can include Populus angustifolia or Acer grandidentatum. If Populus angustifolia is present, it is not in the form of an overstory canopy, rather is shorter saplings and pole-sized small individuals. The woody vines Vitis arizonica and Parthenocissus quinquefolia are common in most stands. Other shrubs in the understory may include Salix exigua, Prunus serotina or Symphoricarpos oreophilus. Common forb species can include Maianthemum racemosum, Aquilegia chrysantha, Galium triflorum, Pteridium aquilinum, Thalictrum fendleri, and Geranium spp. Common graminoids include Glyceria striata, and species of Carex or Bromus. Upland vegetation adjacent to Alnus oblongifolia communities can include Pinus ponderosa, Pseudotsuga menziesii, or Populus tremuloides forests, or Quercus gambelii shrublands.  Accession Code: VB.CC.24207.ALNUSOBLONGIFOL 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:   Translated: Arizona Alder Temporarily Flooded Forest Alliance   Scientific: Alnus oblongifolia Temporarily Flooded Forest Alliance   UID: HIGHER_CLASS_UNIT.2.126178 NatureServe Explorer   Code: A.953