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Acer negundo - Alnus oblongifolia Riparian Forest | NatureServe Biotics 2019
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Name: Acer negundo - Alnus oblongifolia Riparian Forest
Reference: NatureServe Biotics 2019
Description: This association is only known to occur at Bandelier National Monument in north-central New Mexico. The current description is based on data received from there and will be updated when additional inventory data are available. This riparian association occurs at elevations between 1810 and 1820 m (5940-5980 feet) along canyon bottoms with low solar exposure. Stands occur on alluvial terraces and bars adjacent to perennial stream channels with gradients less than 5%. Soils are mapped as loamy Mollisols derived from latite, dacite, and rhyolitic alluvium. The ground surface is characterized by shrubs rooted among rhizomatous grasses, exposed gravels and soil-intermixed litter patches. This riparian forest association is characterized by a moderately open to closed tree canopy (45-60%) dominated by broadleaf deciduous <i>Acer negundo</i> and <i>Alnus oblongifolia</i> (facultative wetland species). In the shrub layer, <i>Betula occidentalis</i>, also a facultative wetland species, can be well-represented. <i>Pinus ponderosa</i> may occur at the edges of a stand. The shrub <i>Forestiera pubescens</i> and the vine <i>Parthenocissus vitacea</i> may be common, but it is the rich and luxuriant herbaceous layer that is characteristic (reaching as much as 50% cover). The graminoids are dominated by <i>Poa pratensis</i> along with <i>Bromus inermis, Carex</i> spp., and <i>Dactylis glomerata</i> as common associates. The facultative wetland species <i>Lactuca serriola</i> and <i>Cicuta maculata</i> are the most frequent among the forbs. 
Accession Code: urn:lsid:vegbank.org:commConcept:34143-{E06DE44B-1F74-4EF5-A20B-E0012C8F98FE}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 31-Mar-2009 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.821479 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL005383
  Translated: Box-elder - Arizona Alder Riparian Forest
  Scientific: Acer negundo - Alnus oblongifolia Riparian Forest
(convergence) and Synonyms:
(similar) Acer negundo - Alnus oblongifolia Forest