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III. SHRUBLAND
III.B.2.N.h. Tidal cold-deciduous
shrubland
A.3025--SALIX NIGRA TIDAL SHRUBLAND ALLIANCE (III.B.2.N.h)
Black Willow Tidal Shrubland Alliance
SALIX NIGRA TIDAL SHRUBLAND
Black Willow Shrubland
Black Willow Tidal Shrubland G?
Summary: This tidal
black willow shrubland of the Maryland Coastal Plain occurs on freshwater tidal
rivers. It forms a zone between adjacent freshwater tidal marshes and uplands.
Microtopography is variable, ranging from pronounced hummocks and hollows to
flat. The substrate is partially decomposed peat with sand or silt admixed. The
shrub canopy is relatively open and dominated by Salix nigra, or mixed
with other shrubs such as Cephalanthus occidentalis, Acer rubrum, Alnus
serrulata, Cornus amomum, Fraxinus pennsylvanica, Rosa palustrus, and Viburnum dentatum. Vines include Mikania scandens
and Toxicodendron radicans. The herbaceous layer is relatively diverse and is
comprised of Symphotrichum novi-belgii, Boehmeria cylindrica, Galium obtusum,
Hibiscus moscheutos, Impatiens capensis, Leersia oryzoides, Peltandra virginica,
Pilea pumila, Polygonum arifolium, Polygonum punctatum, Polygonum sagittatum,
and Thalictrum pubescens (= Thalictrum polygamum).
Range: This vegetation occurs on the coastal plain of Virginia
and Maryland.
States/Provinces: MD:S?, VA:S?
TNC Ecoregions: 58:C
USFS Ecoregions: 232Ad:CCC
References: Coulling 2002, Harrison 2003
Authors: J. Harrison / L. Sneddon Confidence:
3 Identifier: CEGL006843
- Maryland Vegetation Classification Subset Report III.
Shrubland
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