085-HOGI-0002
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:16872-{BB91BEC8-3256-4B1A-AE3E-92BEDFE8533A} » Citing info
Plot ID Fields:
Author Plot Code	085-HOGI-0002
Author Observation Code	085-HOGI-0002
Location Fields:	MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy	10 m
Confidentiality Status	100 km radius (nearest degree)
Latitude	37 º
Longitude	-76 º
State or Province	Virginia
Named Places	county: Northampton region|state|province: Virginia
Layout Fields:
DSG Polygon	16 x 25 m
Area	400 m²
Permanence	not permanent
Environment Fields:
Elevation	1 m
Slope Aspect	(n/a, flat) º
Slope Gradient	0 º
Topographic Position	basin/depression
Landform	interdune flat/interdune swale
Hydrologic Regime	non-tidal - saturated
Soil Moisture Regime	subhygric
Soil Drainage	somewhat poorly drained
Methods Fields:
Observation Start Date	21-Sep-2010
Observation End Date	21-Sep-2010
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	95 %
Misc Fields:
Observation Narrative	Plot captures vegetation in an interdune swale located between a maritime foredune and a low secondary dune in the northern part of Hog Island. Site is about 100 meters from the ocean. It is likely flooded for periods during storm surges and very wet weather; however, its overall hydrology is probably best described as saturated. The vegetation is a dense grassland that is strongly dominated by Spartina patens and contains several lower-cover wetland graminoids, e.g., Andropogon glomeratus ssp. glomeratus, Juncus megacephalus, Fimbristylis caroliniana. A few very low individuals of Myrica cerifera, Baccharis halimifolia, and Iva frutescens are beginning to invade the swale. A small sand hummock inclusion supports a patch of the xerophytic dune grass Ammophila breviligulata.

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 Spartina patens Spartina patens **   Spartina patens **   Spartina patens **   Spartina patens **   Spartina patens **   Spartina patens **   Spartina patens **   Spartina patens **   -all-   87.5 % 9       -none- 2 Agalinis maritima Agalinis maritima **   Agalinis maritima **   Agalinis maritima **   Agalinis maritima **   Agalinis maritima **   Agalinis maritima **   Agalinis maritima **   Agalinis maritima **   -all-   7.5 % 5       -none- 3 Andropogon glomeratus var. glomeratus Andropogon glomeratus var. glomeratus **   Andropogon glomeratus var. glomeratus **   Andropogon glomeratus var. glomeratus **   Andropogon glomeratus var. glomeratus **   Andropogon glomeratus var. glomeratus **   Andropogon glomeratus var. glomeratus **   Andropogon glomeratus var. glomeratus **   Andropogon glomeratus var. glomeratus **   -all-   1.5 % 3       -none- 4 Conyza canadensis var. canadensis Conyza canadensis var. canadensis **   Conyza canadensis var. canadensis **   Conyza canadensis var. canadensis **   Conyza canadensis var. canadensis **   Conyza canadensis var. canadensis **   Conyza canadensis var. canadensis **   Conyza canadensis var. canadensis **   Conyza canadensis var. canadensis **   -all-   1.5 % 3       -none- 5 Pluchea odorata Pluchea odorata **   Pluchea odorata **   Pluchea odorata **   Pluchea odorata **   Pluchea odorata **   Pluchea odorata **   Pluchea odorata **   Pluchea odorata **   -all-   1.5 % 3       -none- 6 Cyperus filicinus Cyperus filicinus **   Cyperus filicinus **   Cyperus filicinus **   Cyperus filicinus **   Cyperus filicinus **   Cyperus filicinus **   Cyperus filicinus **   Cyperus filicinus **   -all-   1.5 % 3       -none- 7 Ammophila breviligulata Ammophila breviligulata **   Ammophila breviligulata **   Ammophila breviligulata **   Ammophila breviligulata **   Ammophila breviligulata **   Ammophila breviligulata **   Ammophila breviligulata **   Ammophila breviligulata **   -all-   1.5 % 3       -none- 8 Baccharis halimifolia Baccharis halimifolia **   Baccharis halimifolia **   Baccharis halimifolia **   Baccharis halimifolia **   Baccharis halimifolia **   Baccharis halimifolia **   Baccharis halimifolia **   Baccharis halimifolia **   -all-   1.5 % 3       -none- 9 Morella cerifera Morella cerifera **   Morella cerifera **   Morella cerifera **   Morella cerifera **   Morella cerifera **   Morella cerifera **   Morella cerifera **   Morella cerifera **   -all-   1.5 % 3       -none- 10 Juncus megacephalus Juncus megacephalus **   Juncus megacephalus **   Juncus megacephalus **   Juncus megacephalus **   Juncus megacephalus **   Juncus megacephalus **   Juncus megacephalus **   Juncus megacephalus **   -all-   1.5 % 3       -none- 11 Andropogon virginicus Andropogon virginicus **   Andropogon virginicus **   Andropogon virginicus **   Andropogon virginicus **   Andropogon virginicus **   Andropogon virginicus **   Andropogon virginicus **   Andropogon virginicus **   -all-   1.5 % 3       -none- 12 Fimbristylis caroliniana Fimbristylis caroliniana **   Fimbristylis caroliniana **   Fimbristylis caroliniana **   Fimbristylis caroliniana **   Fimbristylis caroliniana **   Fimbristylis caroliniana **   Fimbristylis caroliniana **   Fimbristylis caroliniana **   -all-   1.5 % 3       -none- 13 Eupatorium capillifolium Eupatorium capillifolium **   Eupatorium capillifolium **   Eupatorium capillifolium **   Eupatorium capillifolium **   Eupatorium capillifolium **   Eupatorium capillifolium **   Eupatorium capillifolium **   Eupatorium capillifolium **   -all-   0.505 % 2       -none- 14 Phragmites australis Phragmites australis **   Phragmites australis **   Phragmites australis **   Phragmites australis **   Phragmites australis **   Phragmites australis **   Phragmites australis **   Phragmites australis **   -all-   0.505 % 2       -none- 15 Panicum amarum var. amarum Panicum amarum var. amarum **   Panicum amarum var. amarum **   Panicum amarum var. amarum **   Panicum amarum var. amarum **   Panicum amarum var. amarum **   Panicum amarum var. amarum **   Panicum amarum var. amarum **   Panicum amarum var. amarum **   -all-   0.505 % 2       -none- 16 Strophostyles helvola Strophostyles helvola **   Strophostyles helvola **   Strophostyles helvola **   Strophostyles helvola **   Strophostyles helvola **   Strophostyles helvola **   Strophostyles helvola **   Strophostyles helvola **   -all-   0.505 % 2       -none- 17 Eragrostis spectabilis Eragrostis spectabilis **   Eragrostis spectabilis **   Eragrostis spectabilis **   Eragrostis spectabilis **   Eragrostis spectabilis **   Eragrostis spectabilis **   Eragrostis spectabilis **   Eragrostis spectabilis **   -all-   0.505 % 2       -none- 18 Juncus dichotomus Juncus dichotomus **   Juncus dichotomus **   Juncus dichotomus **   Juncus dichotomus **   Juncus dichotomus **   Juncus dichotomus **   Juncus dichotomus **   Juncus dichotomus **   -all-   0.505 % 2       -none- 19 Iva frutescens Iva frutescens **   Iva frutescens **   Iva frutescens **   Iva frutescens **   Iva frutescens **   Iva frutescens **   Iva frutescens **   Iva frutescens **   -all-   0.505 % 2       -none- 20 Cyperus echinatus Cyperus echinatus **   Cyperus echinatus **   Cyperus echinatus **   Cyperus echinatus **   Cyperus echinatus **   Cyperus echinatus **   Cyperus echinatus **   Cyperus echinatus **   -all-   0.05 % 1       -none- 21 Gamochaeta purpurea Gamochaeta purpurea **   Gamochaeta purpurea **   Gamochaeta purpurea **   Gamochaeta purpurea **   Gamochaeta purpurea **   Gamochaeta purpurea **   Gamochaeta purpurea **   Gamochaeta purpurea **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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