085-PAMR-0021
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:15063-{59468259-CD6F-4E22-BFA2-C067225FDF79} » Citing info
Plot ID Fields:
Author Plot Code	085-PAMR-0021
Author Observation Code	085-PAMR-0021
Location Fields:	MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy	25 m
Confidentiality Status	100 km radius (nearest degree)
Latitude	38 º
Longitude	-77 º
State or Province	Virginia
Named Places	county: New Kent region|state|province: Virginia
Layout Fields:
DSG Polygon	10 x 10 m
Area	100 m²
Permanence	not permanent
Environment Fields:
Elevation	0 m
Slope Aspect	(n/a, flat) º
Topographic Position	plain/level/bottom
Landform	tidal flat
Hydrologic Regime	tidal - regularly flooded
Soil Moisture Regime	hydric
Soil Drainage	very poorly drained
Water Salinity	freshwater
Methods Fields:
Observation Start Date	29-Sep-1998
Observation End Date	29-Sep-1998
Project	Virginia Heritage
Cover Method	Carolina Vegetation Survey
Stratum Method	No Strata
Method Narrative	Releve Virginia Division of Natural Heritage, see http://www.dcr.virginia.gov/natural_heritage/documents/nh_plotform_instructions.pdf
Overall Taxon Cover Values are Automatically Calculated?	no
Plot Quality Fields:
Plot Validation Level	(2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields:
Field Height	1 m
Field Cover	75 %
Misc Fields:
Observation Narrative	Small (ca. 0.3 ha), open, low marsh dominated by Leersia oryzoides and Pontederia cordata adjacent to taller, Zizania-dominated marsh along Big Creek. From quick, initial reconnaissance this stand appears to be one of the larger low Peltandra virginica - Pontederia cordata marshes along Big Creek, although there may be more extensive examples of this vegetation type in the interior of Cumberland (aka Lilly Point) Marsh along some of the larger drainage channels. This plot lies adjacent to one such channel and to a smaller tributary thereof. For once cover of Murdannia may have been overestimated, as Leersia is the clear ground-layer dominant beneath the open canopy of Pontederia.

Taxa occurring on this plot-observation
Change plant label: --Choose a value-- Author's plant name Original Interpretation, full Scientific Name Original Interpretation, Scientific Name without authors Original Interpretation, USDA Code Original Interpretation, Common Name Current Interpretation, full Scientific Name Current Interpretation, Scientific Name without authors Current Interpretation, USDA Code Current Interpretation, Common Name
Change Strata Shown: --choose one-- show strata (no strata on this plot) show overall cover show strata + overall
ord Author Plant Name Original Interpretation, full Scientific Name Original Interpretation, Scientific Name without authors Original Interpretation, Common Name Original Interpretation, USDA Code Current Interpretation, full Scientific Name Current Interpretation, Scientific Name without authors Current Interpretation, Common Name Current Interpretation, USDA Code Stratum Cover Original Cover Code Basal Area Biomass Inference Area Stems: Stem Diameters (graphically): 1 Leersia oryzoides Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   -all-   37.5 % 7       -none- 2 Pontederia cordata var. cordata Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   -all-   17.5 % 6       -none- 3 Peltandra virginica Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   -all-   7.5 % 5       -none- 4 Murdannia keisak Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   -all-   7.5 % 5       -none- 5 Impatiens capensis Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   -all-   3.5 % 4       -none- 6 Persicaria punctata Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   -all-   3.5 % 4       -none- 7 Sagittaria latifolia Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   -all-   1.5 % 3       -none- 8 Orontium aquaticum Orontium aquaticum **   Orontium aquaticum **   Orontium aquaticum **   Orontium aquaticum **   Orontium aquaticum **   Orontium aquaticum **   Orontium aquaticum **   Orontium aquaticum **   -all-   0.505 % 2       -none- 9 Zizania aquatica var. aquatica Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   -all-   0.505 % 2       -none- 10 Dulichium arundinaceum var. arundinaceum Dulichium arundinaceum var. arundinaceum **   Dulichium arundinaceum var. arundinaceum **   Dulichium arundinaceum var. arundinaceum **   Dulichium arundinaceum var. arundinaceum **   Dulichium arundinaceum var. arundinaceum **   Dulichium arundinaceum var. arundinaceum **   Dulichium arundinaceum var. arundinaceum **   Dulichium arundinaceum var. arundinaceum **   -all-   0.505 % 2       -none- 11 Eleocharis quadrangulata Eleocharis quadrangulata **   Eleocharis quadrangulata **   Eleocharis quadrangulata **   Eleocharis quadrangulata **   Eleocharis quadrangulata **   Eleocharis quadrangulata **   Eleocharis quadrangulata **   Eleocharis quadrangulata **   -all-   0.505 % 2       -none- 12 Lobelia cardinalis Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   -all-   0.505 % 2       -none- 13 Nuphar advena Nuphar advena **   Nuphar advena **   Nuphar advena **   Nuphar advena **   Nuphar advena **   Nuphar advena **   Nuphar advena **   Nuphar advena **   -all-   0.505 % 2       -none- 14 Amaranthus cannabinus Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   -all-   0.505 % 2       -none- 15 Bidens laevis Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   -all-   0.05 % 1       -none- 16 Ludwigia palustris Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   -all-   0.05 % 1       -none- 17 Echinochloa walteri Echinochloa walteri **   Echinochloa walteri **   Echinochloa walteri **   Echinochloa walteri **   Echinochloa walteri **   Echinochloa walteri **   Echinochloa walteri **   Echinochloa walteri **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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