Print Report

CEGL006903 Leersia oryzoides - Boehmeria cylindrica - Ranunculus flabellaris Wet Meadow

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Rice Cutgrass - Small-spike False Nettle - Yellow Water Buttercup Wet Meadow

Colloquial Name: Rice Cutgrass - Small-spike False Nettle - Yellow Water Buttercup Pond

Hierarchy Level:  Association

Type Concept: This open, graminoid-dominated herbaceous community occurs on the flat to gently sloping bottoms or moats of calcareous sinkhole ponds in the Valley and Ridge Province of northwest New Jersey. The dominant species are Boehmeria cylindrica, Leersia oryzoides, and Ranunculus flabellaris. The most common associates include Bidens connata, Bidens frondosa, Carex lupulina, Carex squarrosa, Echinochloa muricata var. muricata, Eleocharis acicularis, Eleocharis palustris, Glyceria septentrionalis, Pilea pumila, Polygonum amphibium, and Sparganium emersum. In disturbed conditions the non-native species Polygonum persicaria or Microstegium vimineum may be present and locally abundant. Rare plants associated with this community include Glyceria acutiflora, Ranunculus flabellaris, and Sagittaria cuneata. This herbaceous community occurs primarily on Ordovician Allentown dolomite with glacial outwash (kettle) surficial deposits. Occasionally it occurs in solution sinkholes on Epler Rickenbach dolomite with glacial till/bedrock complex surficial deposits. The soils are muck, rarely silty clay or silt marl, and overlay clay, sandy clay, shell marl, peat or bedrock. This community is seasonally flooded. Slope is flat to gentle or occasionally moderate. Aspect is variable and elevation range is 150 to 185 m (492-610 feet) above mean sea level.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: Sparganium chlorocarpum is considered rare in New Jersey. However, it is currently treated as the more common Sparganium emersum (USDA Plants 2017).

Similar NVC Types: No Data Available
note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: The dominant species of this open, graminoid-dominated herbaceous community are Boehmeria cylindrica, Leersia oryzoides, and Ranunculus flabellaris. The most common associates include Bidens connata, Bidens frondosa, Carex lupulina, Carex squarrosa, Echinochloa muricata var. muricata, Eleocharis acicularis, Eleocharis palustris, Glyceria septentrionalis, Pilea pumila, Polygonum amphibium, and Sparganium emersum (= Sparganium chlorocarpum). In disturbed conditions the non-native species Polygonum persicaria or Microstegium vimineum may be present and locally abundant. Rare plants associated with this community include Glyceria acutiflora, Ranunculus flabellaris, and Sagittaria cuneata.

Dynamics:  A large number of amphibians and other animals utilize these sinkhole ponds.

Environmental Description:  This herbaceous community occurs primarily on Ordovician Allentown dolomite with glacial outwash (kettle) surficial deposits. Occasionally it occurs in solution sinkholes on Epler Rickenbach dolomite with glacial till/bedrock complex surficial deposits. The soils are muck, rarely silty clay or silt marl, and overlay clay, sandy clay, shell marl, peat or bedrock. They are wet, very wet or periodically inundated, and very poorly drained. Soil pH ranges from 6.2 to 8.0 at the surface (0-3.5 cm [0-12 inches]) and 6.2 to 7.8 at depth (3.5-7 cm [12-24 inches]). This community is seasonally flooded and has a hydroperiod range of 10-30 weeks, averaging 12-14 weeks. Slope is flat to gentle or occasionally moderate. Aspect is variable and elevation range is 150 to 185 m (492-610 feet) above mean sea level.

Geographic Range: This association occurs in the Valley and Ridge Province of northwest New Jersey. It may also occur in New York and Pennsylvania but has not been confirmed from there.

Nations: US

States/Provinces:  NJ, NY?, PA?




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: GNR

Greasons: No Data Available


Concept Lineage: reactivated by K. Walz (1-27-14)

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: No Data Available

Concept Author(s): Eastern Ecology Group

Author of Description: K. Walz

Acknowledgements: No Data Available

Version Date: 01-27-14

  • Eastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boston, MA.
  • Kartesz, J. T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: J. T. Kartesz and C. A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, NC.