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A3410 Colocasia esculenta - Ludwigia grandiflora ssp. hexapetala Ruderal Marsh Alliance

Type Concept Sentence: This broadleaf emergent exotic plant-dominated vegetation occurs in southeastern wetlands, and includes sites dominated by Colocasia esculenta, Ludwigia grandiflora ssp. hexapetala, and other broadleaf emergent exotic plants.

Common (Translated Scientific) Name: Coco Yam - Large-flower Primrose-willow Ruderal Marsh Alliance

Colloquial Name: Southern Ruderal Emergent Broadleaf Marsh

Hierarchy Level:  Alliance

Type Concept: This broadleaf emergent exotic plant-dominated vegetation occurs in southern wetlands. Examples include Colocasia esculenta and Ludwigia grandiflora ssp. hexapetala, but other broadleaf emergent exotic plant-dominated vegetation is also included here. This alliance occurs in shallow water on the flat to gently sloping margins of the upper reaches of wetlands, including artificial impoundments.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: Does not include exotic floating-aquatic or exotic submerged vegetation.

Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: Vegetation of this alliance consists of exotic emergent wetland herbaceous forbs.

Floristics: This alliance consists of marshes dominated by exotic emergent wetland herbaceous forbs, such as Colocasia esculenta, Ludwigia grandiflora ssp. hexapetala, and others.

Dynamics:  No Data Available
Environmental Description:  This alliance occurs in shallow water on the flat to gently sloping margins of the upper reaches of wetlands, including artificial impoundments.
Geographic Range: This alliance occurs in the southeastern United States, and is documented from Louisiana to Georgia, Kentucky and North Carolina.

Nations: US

States/Provinces:  AL?, FL?, GA, KY, LA, MS?, NC, SC


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.a Bushy Bluestem - Common Rush Ruderal Marsh, Wet Meadow & Shrubland Group G557 2.C.4.Nd.90.a
Alliance A3410 Coco Yam - Large-flower Primrose-willow Ruderal Marsh Alliance A3410 2.C.4.Nd.90.a
Association CEGL004260 Coco Yam Ruderal Marsh CEGL004260 2.C.4.Nd.90.a
Association CEGL004288 Large-flower Primrose-willow Ruderal Marsh CEGL004288 2.C.4.Nd.90.a
Concept Lineage: Includes vegetation from old alliances A.1586 and A.1670.

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available
Synonomy: No Data Available
Concept Author(s): C. Nordman, in Faber-Langendoen et al. (2013)

Author of Description: C. Nordman

Acknowledgements: Prior work on this vegetation was done by A.S. Weakley.

Version Date: 09-26-14
  • 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.
  • Nesom, G. L., and J. T. Kartesz. 2000. Observations on the Ludwigia uruguayensis complex (Onagraceae) in North America. Castanea 65:123-125.