085-MNNR-0001
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:14887-{4C2C9561-E4D6-4F8E-9AE0-CB77114457B1} » Citing info
Plot ID Fields:
Author Plot Code	085-MNNR-0001
Author Observation Code	085-MNNR-0001
Location Fields:	MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy	25 m
Confidentiality Status	100 km radius (nearest degree)
Latitude	39 º
Longitude	-77 º
State or Province	Virginia
Named Places	county: Fairfax county: Fairfax region|state|province: Virginia
Layout Fields:
DSG Polygon	10 x 10 m
Area	100 m²
Permanence	not permanent
Environment Fields:
Elevation	2 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	03-Oct-2000
Observation End Date	03-Oct-2000
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	5 m
Field Cover	90 %
Misc Fields:
Observation Narrative	Very diverse pocket marsh in cove near upland edge. Notable is the co-occurrence of species associated primarily with freshwater conditions (Bidens laevis, Impatiens capensis, Zizania aquatica) and several more typical of oligohaline vegetation (Typha angustifolia, Spartina cynosuroides). Summation of cover values may belie total cover of vegetation, which is multilayered up to 1.5 m (above which only Zizania extends), but the cover of no individual species seems to have been underestimated. Many species -- notably Zizania, Schoenoplectus fluviatilis, and Hibiscus moscheutos -- are already senescent. Marsh surface is variably soft and uneven. Matted down path extends into plot at time of sampling, but no muskrat "eat-outs" or navigation channels are evident. A few cm of standing water present by the end of sampling (2:30 PM).

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 Impatiens capensis Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   -all-   17.5 % 6       -none- 2 Bolboschoenus fluviatilis Bolboschoenus fluviatilis **   Bolboschoenus fluviatilis **   Bolboschoenus fluviatilis **   Bolboschoenus fluviatilis **   Bolboschoenus fluviatilis **   Bolboschoenus fluviatilis **   Bolboschoenus fluviatilis **   Bolboschoenus fluviatilis **   -all-   17.5 % 6       -none- 3 Thelypteris palustris var. pubescens Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   -all-   7.5 % 5       -none- 4 Persicaria arifolia Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   -all-   7.5 % 5       -none- 5 Hibiscus moscheutos Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   -all-   7.5 % 5       -none- 6 Leersia oryzoides Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   -all-   3.5 % 4       -none- 7 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-   1.5 % 3       -none- 8 Bidens laevis Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   -all-   1.5 % 3       -none- 9 Acorus calamus Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   -all-   1.5 % 3       -none- 10 Onoclea sensibilis var. sensibilis Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   -all-   1.5 % 3       -none- 11 Typha angustifolia Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   -all-   1.5 % 3       -none- 12 Cinna arundinacea Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   -all-   0.505 % 2       -none- 13 Spartina cynosuroides Spartina cynosuroides **   Spartina cynosuroides **   Spartina cynosuroides **   Spartina cynosuroides **   Spartina cynosuroides **   Spartina cynosuroides **   Spartina cynosuroides **   Spartina cynosuroides **   -all-   0.505 % 2       -none- 14 Boehmeria cylindrica Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   -all-   0.505 % 2       -none- 15 Persicaria punctata Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   -all-   0.505 % 2       -none- 16 Peltandra virginica Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   -all-   0.505 % 2       -none- 17 Lobelia cardinalis Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   -all-   0.505 % 2       -none- 18 Sagittaria latifolia Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   -all-   0.505 % 2       -none- 19 Mikania scandens Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   -all-   0.505 % 2       -none- 20 Symphyotrichum novi-belgii Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   -all-   0.505 % 2       -none- 21 Carex hyalinolepis Carex hyalinolepis **   Carex hyalinolepis **   Carex hyalinolepis **   Carex hyalinolepis **   Carex hyalinolepis **   Carex hyalinolepis **   Carex hyalinolepis **   Carex hyalinolepis **   -all-   0.05 % 1       -none- 22 Sparganium americanum Sparganium americanum **   Sparganium americanum **   Sparganium americanum **   Sparganium americanum **   Sparganium americanum **   Sparganium americanum **   Sparganium americanum **   Sparganium americanum **   -all-   0.05 % 1       -none- 23 Galium tinctorium Galium tinctorium **   Galium tinctorium **   Galium tinctorium **   Galium tinctorium **   Galium tinctorium **   Galium tinctorium **   Galium tinctorium **   Galium tinctorium **   -all-   0.05 % 1       -none- 24 Eleocharis erythropoda Eleocharis erythropoda **   Eleocharis erythropoda **   Eleocharis erythropoda **   Eleocharis erythropoda **   Eleocharis erythropoda **   Eleocharis erythropoda **   Eleocharis erythropoda **   Eleocharis erythropoda **   -all-   0.05 % 1       -none- 25 Amaranthus cannabinus Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   -all-   0.05 % 1       -none- 26 Eleocharis palustris Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   -all-   0.05 % 1       -none- 27 Coleataenia rigidula ssp. condensa Coleataenia rigidula ssp. condensa **   Coleataenia rigidula ssp. condensa **   Coleataenia rigidula ssp. condensa **   Coleataenia rigidula ssp. condensa **   Coleataenia rigidula ssp. condensa **   Coleataenia rigidula ssp. condensa **   Coleataenia rigidula ssp. condensa **   Coleataenia rigidula ssp. condensa **   -all-   0.05 % 1       -none- 28 Murdannia keisak Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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