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Populus deltoides Temporarily Flooded Woodland Alliance | Midwestern Ecology Working Group...
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Name: Populus deltoides Temporarily Flooded Woodland Alliance Reference: Midwestern Ecology Working Group... Description: This alliance occurs throughout the Great Plains near rivers and large streams. It is dominated by Populus deltoides throughout its range. Secondary canopy species include Acer negundo throughout, Salix nigra (in the eastern part of its range), Fraxinus pennsylvanica and Ulmus americana (central and eastern), and Salix amygdaloides (central and western). Fraxinus pennsylvanica and Ulmus americana often increase in abundance and dominance as stands of this alliance age. Populus deltoides does not reproduce well in established stands. The understory composition and structure are variable. A shrub layer may be present, with species such as Salix spp., Symphoricarpos occidentalis, and Prunus virginiana predominating. Sites experience seasonal floods, which, after receding, leave areas available for colonization. This process often favors the establishment of aggressive native and exotic plants. Among the species that are common in this alliance are Carex spp., Juncus spp., Spartina pectinata (in the east), Pascopyrum smithii (in the west), Elymus spp., Cenchrus longispinus, Melilotus officinalis, and Equisetum spp. Typical exotics found in this alliance are Poa pratensis and Bromus spp. Stands of this alliance are found on level to gently sloping topography near rivers, streams, lakes, and ponds. The areas may have been very recently deposited by water action, or they may have been deposited earlier and occupied by other communities. The water table fluctuates with the level of the adjacent water body. This can lead to periods of flooding and soil saturation in the spring and after heavy rains and also to periods of drought when the water level falls in the summer and fall. The soils are silts, loams, and sands, and are derived from alluvial material.  Accession Code: VB.CC.20055.POPULUSDELTOIDE 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: Populus deltoides Temporarily Flooded Woodland Alliance   Translated: Eastern Cottonwood Temporarily Flooded Woodland Alliance   UID: HIGHER_CLASS_UNIT.2.125213 NatureServe Explorer   Code: A.636