Print Report
A3030 Lythrum salicaria Ruderal Marsh Alliance
Type Concept Sentence: This alliance represents wetlands in the eastern United States with >70% cover by the exotic Lythrum salicaria.
Common (Translated Scientific) Name: Purple Loosestrife Ruderal Marsh Alliance
Colloquial Name: Ruderal Purple Loosestrife Marsh
Hierarchy Level: Alliance
Type Concept: This alliance represents wetlands in the eastern United States heavily invaded by Lythrum salicaria with few or no species indicating the former more native association analog. Lythrum makes up at least 70% of the vegetation cover and may approach 100%. The sparse associates include common wetland plants such as Carex stricta, Impatiens capensis, Onoclea sensibilis, Thelypteris palustris, and Typha spp. Shrubs are sparse or absent. Sites are flooded for at least part of the growing season.
Diagnostic Characteristics: Wetland stands in the eastern United States with strong dominance (>70%) by Lythrum salicaria.
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: The distribution of this type is poorly documented. The species is widespread in the entire United States, but the range of the alliance is not well known.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: Herbaceous species 1-1.5 m tall dominate this alliance. Vegetation cover ranges widely but tends to be dense, unless recent disturbance has reduced it. Shrubs are sparse or absent.
Floristics: This alliance represents wetlands heavily invaded by Lythrum salicaria with few or no species indicating the former more native association analog. Lythrum makes up at least 75% of the vegetation cover and may approach 100%. The sparse associates include common wetland plants such as Carex stricta, Impatiens capensis, Onoclea sensibilis, Thelypteris palustris, and Typha spp.
Dynamics: No Data Available
Environmental Description: This alliance is found on wetlands flooded for some of the growing season. It can occur on the banks of rivers, along ponds and lakes, or in wet basins.
Geographic Range: This alliance has been reported from the northeastern United States but is likely much more widespread into the Midwest and parts of the Interior Low Plateau.
Nations: US
States/Provinces: MA, MN, NY
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.899229
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: GNA
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 2 Shrub & Herb Vegetation Class | C02 | 2 |
| Subclass | 2.C Shrub & Herb Wetland Subclass | S44 | 2.C |
| Formation | 2.C.4 Temperate to Polar Freshwater Marsh, Wet Meadow & Shrubland Formation | F013 | 2.C.4 |
| Division | 2.C.4.Nd Eastern North American Temperate Freshwater Marsh, Wet Meadow & Shrubland Division | D323 | 2.C.4.Nd |
| Macrogroup | 2.C.4.Nd.90 Common Rush - Purple Loosestrife - Reed Canarygrass Eastern North American Ruderal Marsh, Wet Meadow & Shrubland Macrogroup | M303 | 2.C.4.Nd.90 |
| Group | 2.C.4.Nd.90.b Reed Canarygrass - Common Reed - Narrowleaf Cattail Ruderal Wet Meadow & Marsh Group | G556 | 2.C.4.Nd.90.b |
| Alliance | A3030 Purple Loosestrife Ruderal Marsh Alliance | A3030 | 2.C.4.Nd.90.b |
| Association | CEGL006403 Purple Loosestrife Ruderal Marsh | CEGL006403 | 2.C.4.Nd.90.b |
Concept Lineage: This alliance has one association from old A.3030.
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- Faber-Langendoen, D., J. Drake, M. Hall, G. Kittel, S. Menard, C. Nordman, M. Pyne, M. Reid, M. Russo, K. Schulz, L. Sneddon, K. Snow, and J. Teague. 2013-2019b. Screening alliances for induction into the U.S. National Vegetation Classification: Part 1 - Alliance concept review. NatureServe, Arlington, VA.