Name:
Fraxinus pennsylvanica - Ulmus americana / Prunus spp. Forest & Woodland Group
Reference:
NatureServe Biotics 2019
Description:
This group is dominated by trees and/or shrubs in a largely grassland landscape. Cover of woody species is variable and can range from just over 10% to nearly 100%. This group occurs in a semi-arid climate, but sites are more mesic than the surrounding areas. In general, shrubs dominate stands that receive less moisture from surrounding areas (e.g., higher on the landscape, steeper slopes, coarser soil), while sites that receive more moisture are dominated by trees and shrubs. The herbaceous layer is variable but tends to be less prominent under heavier woody canopies with deep litter deposition. Dominant trees include <i>Betula papyrifera, Fraxinus pennsylvanica, Populus tremuloides, Ulmus americana, Ulmus rubra</i>, and, in the western Great Plains, <i>Juniperus scopulorum</i>. <i>Quercus macrocarpa</i> is common but not dominant except in some stands in canyons. Common shrubs are <i>Amelanchier alnifolia, Cornus sericea, Crataegus douglasii, Crataegus chrysocarpa, Crataegus succulenta, Dasiphora fruticosa ssp. floribunda, Elaeagnus commutata, Juniperus horizontalis, Prunus virginiana, Rhus</i> spp., <i>Rosa woodsii, Shepherdia argentea, Symphoricarpos occidentalis</i>, and <i>Toxicodendron rydbergii</i>. Common graminoids can include <i>Calamagrostis stricta, Carex</i> spp., <i>Pascopyrum smithii, Piptatheropsis micrantha, Pseudoroegneria spicata</i>, or <i>Schizachyrium scoparium</i>. <i>Festuca</i> spp. can be abundant in the northwestern Great Plains. Typical sites are upper river terraces, protected slopes (often north-facing), ravines, and draws. Stands of this group that occur on upper terraces and toeslopes in riparian areas are rarely flooded but have root access to groundwater. Soils range from shallow to deep and fine to sandy loams.
Accession Code:
urn:lsid:vegbank.org:commConcept:39967-{0EE192EC-ED9B-4249-A111-C141644C46A1}
Plot-observations of this Community Concept:
0
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