085-NORH-0017
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:16660-{40E873D2-B2DA-439D-B059-0942B2484984} » Citing info
Plot ID Fields:
Author Plot Code	085-NORH-0017
Author Observation Code	085-NORH-0017
Location Fields:	MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy	25 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	2 m
Slope Aspect	(n/a, flat) º
Slope Gradient	0 º
Topographic Position	plain/level/bottom
Landform	seep/swale/non-alluvial bottom
Hydrologic Regime	non-tidal - saturated
Soil Moisture Regime	subhygric
Soil Drainage	poorly drained
Methods Fields:
Observation Start Date	21-Sep-2009
Observation End Date	21-Sep-2009
Project	Virginia Heritage
Cover Method	Carolina Vegetation Survey
Stratum Method	No Strata
Stem Size Limit	2.5 cm
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
Stem Observation Area	400 m²
Plot Quality Fields:
Plot Validation Level	(2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields:
Tree Height	27 m
Shrub Height	6 m
Field Height	3 m
Tree Cover	70 %
Shrub Cover	50 %
Field Cover	70 %
Nonvascular Cover	0.5 %
Misc Fields:
Observation Narrative	This site supports a small remnant of maritime swamp forest wedged between salt marshes on Magothy Bay and an agricultural field on the inland side. Hydrology of the site is probably best characterized as saturated by perched groundwater, although it may be inundated by occasional storm surges. Although somewhat disturbed by invasive weeds, this stand is dominated by some impressively large Nyssa biflora and could be quite old. Acer rubrum, Ilex opaca, and Magnolia virginiana are important understory species, and Pinus taeda saplings are invading the more open edges in the ecotone between the swamp and the marsh. The herb layer is fairly diverse, with Boehmeria cylindrica, Hydrocotyle verticillata var. verticillata, and several sedges contributing the highest cover.

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 Nyssa biflora Nyssa biflora **   Nyssa biflora **   Nyssa biflora **   Nyssa biflora **   Nyssa biflora **   Nyssa biflora **   Nyssa biflora **   Nyssa biflora **   -all-   62.5 % 8       DBH DBH err Ht. Ht. Err # 12.5 cm ± 2.5 cm     3 stem(s) 17.5 cm ± 2.5 cm     2 stem(s) 22.5 cm ± 2.5 cm     1 stem(s) 27.5 cm ± 2.5 cm     1 stem(s) 32.5 cm ± 2.5 cm     1 stem(s) 37.5 cm ± 2.5 cm     1 stem(s) 44.5 cm ± 0.5 cm     1 stem(s) 45.5 cm ± 0.5 cm     1 stem(s) 58.5 cm ± 0.5 cm     1 stem(s) 60.5 cm ± 0.5 cm     1 stem(s) 68.5 cm ± 0.5 cm     1 stem(s) 71.5 cm ± 0.5 cm     1 stem(s) 72.5 cm ± 0.5 cm     1 stem(s) 2 Acer rubrum Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     2 stem(s) 12.5 cm ± 2.5 cm     2 stem(s) 17.5 cm ± 2.5 cm     3 stem(s) 22.5 cm ± 2.5 cm     3 stem(s) 27.5 cm ± 2.5 cm     1 stem(s) 32.5 cm ± 2.5 cm     4 stem(s) 37.5 cm ± 2.5 cm     1 stem(s) 3 Ilex opaca var. opaca Ilex opaca var. opaca **   Ilex opaca var. opaca **   Ilex opaca var. opaca **   Ilex opaca var. opaca **   Ilex opaca var. opaca **   Ilex opaca var. opaca **   Ilex opaca var. opaca **   Ilex opaca var. opaca **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     8 stem(s) 7.5 cm ± 2.5 cm     7 stem(s) 12.5 cm ± 2.5 cm     4 stem(s) 17.5 cm ± 2.5 cm     2 stem(s) 22.5 cm ± 2.5 cm     2 stem(s) 4 Carex seorsa Carex seorsa **   Carex seorsa **   Carex seorsa **   Carex seorsa **   Carex seorsa **   Carex seorsa **   Carex seorsa **   Carex seorsa **   -all-   17.5 % 6       -none- 5 Boehmeria cylindrica Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   -all-   17.5 % 6       -none- 6 Carex debilis Carex debilis **   Carex debilis **   Carex debilis **   Carex debilis **   Carex debilis **   Carex debilis **   Carex debilis **   Carex debilis **   -all-   17.5 % 6       -none- 7 Hydrocotyle verticillata Hydrocotyle verticillata **   Hydrocotyle verticillata **   Hydrocotyle verticillata **   Hydrocotyle verticillata **   Hydrocotyle verticillata **   Hydrocotyle verticillata **   Hydrocotyle verticillata **   Hydrocotyle verticillata **   -all-   7.5 % 5       -none- 8 Pinus taeda Pinus taeda **   Pinus taeda **   Pinus taeda **   Pinus taeda **   Pinus taeda **   Pinus taeda **   Pinus taeda **   Pinus taeda **   -all-   3.5 % 4       -none- 9 Magnolia virginiana Magnolia virginiana **   Magnolia virginiana **   Magnolia virginiana **   Magnolia virginiana **   Magnolia virginiana **   Magnolia virginiana **   Magnolia virginiana **   Magnolia virginiana **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 32.5 cm ± 2.5 cm     1 stem(s) 10 Cinna arundinacea Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   -all-   3.5 % 4       -none- 11 Persicaria setacea Persicaria setacea **   Persicaria setacea **   Persicaria setacea **   Persicaria setacea **   Persicaria setacea **   Persicaria setacea **   Persicaria setacea **   Persicaria setacea **   -all-   1.5 % 3       -none- 12 Melothria pendula Melothria pendula **   Melothria pendula **   Melothria pendula **   Melothria pendula **   Melothria pendula **   Melothria pendula **   Melothria pendula **   Melothria pendula **   -all-   1.5 % 3       -none- 13 Cicuta maculata var. maculata Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   -all-   1.5 % 3       -none- 14 Impatiens capensis Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   -all-   1.5 % 3       -none- 15 Carex lurida Carex lurida **   Carex lurida **   Carex lurida **   Carex lurida **   Carex lurida **   Carex lurida **   Carex lurida **   Carex lurida **   -all-   1.5 % 3       -none- 16 Saururus cernuus Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   -all-   1.5 % 3       -none- 17 Leersia virginica Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   -all-   1.5 % 3       -none- 18 Smilax laurifolia Smilax laurifolia **   Smilax laurifolia **   Smilax laurifolia **   Smilax laurifolia **   Smilax laurifolia **   Smilax laurifolia **   Smilax laurifolia **   Smilax laurifolia **   -all-   1.5 % 3       -none- 19 Juncus canadensis Juncus canadensis **   Juncus canadensis **   Juncus canadensis **   Juncus canadensis **   Juncus canadensis **   Juncus canadensis **   Juncus canadensis **   Juncus canadensis **   -all-   0.505 % 2       -none- 20 Lycopus rubellus Lycopus rubellus **   Lycopus rubellus **   Lycopus rubellus **   Lycopus rubellus **   Lycopus rubellus **   Lycopus rubellus **   Lycopus rubellus **   Lycopus rubellus **   -all-   0.505 % 2       -none- 21 Ludwigia palustris Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   -all-   0.505 % 2       -none- 22 Lonicera japonica Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   -all-   0.505 % 2       -none- 23 Ligustrum sinense Ligustrum sinense **   Ligustrum sinense **   Ligustrum sinense **   Ligustrum sinense **   Ligustrum sinense **   Ligustrum sinense **   Ligustrum sinense **   Ligustrum sinense **   -all-   0.505 % 2       -none- 24 Campsis radicans Campsis radicans **   Campsis radicans **   Campsis radicans **   Campsis radicans **   Campsis radicans **   Campsis radicans **   Campsis radicans **   Campsis radicans **   -all-   0.505 % 2       -none- 25 Rubus pensilvanicus Rubus pensilvanicus **   Rubus pensilvanicus **   Rubus pensilvanicus **   Rubus pensilvanicus **   Rubus pensilvanicus **   Rubus pensilvanicus **   Rubus pensilvanicus **   Rubus pensilvanicus **   -all-   0.505 % 2       -none- 26 Hedera helix Hedera helix **   Hedera helix **   Hedera helix **   Hedera helix **   Hedera helix **   Hedera helix **   Hedera helix **   Hedera helix **   -all-   0.505 % 2       -none- 27 Juniperus virginiana var. virginiana Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   -all-   0.505 % 2       -none- 28 Carex styloflexa Carex styloflexa **   Carex styloflexa **   Carex styloflexa **   Carex styloflexa **   Carex styloflexa **   Carex styloflexa **   Carex styloflexa **   Carex styloflexa **   -all-   0.505 % 2       -none- 29 Glyceria striata var. striata Glyceria striata var. striata **   Glyceria striata var. striata **   Glyceria striata var. striata **   Glyceria striata var. striata **   Glyceria striata var. striata **   Glyceria striata var. striata **   Glyceria striata var. striata **   Glyceria striata var. striata **   -all-   0.505 % 2       -none- 30 Dichanthelium dichotomum Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   -all-   0.505 % 2       -none- 31 Juncus effusus var. solutus Juncus effusus var. solutus **   Juncus effusus var. solutus **   Juncus effusus var. solutus **   Juncus effusus var. solutus **   Juncus effusus var. solutus **   Juncus effusus var. solutus **   Juncus effusus var. solutus **   Juncus effusus var. solutus **   -all-   0.505 % 2       -none- 32 Woodwardia areolata Woodwardia areolata **   Woodwardia areolata **   Woodwardia areolata **   Woodwardia areolata **   Woodwardia areolata **   Woodwardia areolata **   Woodwardia areolata **   Woodwardia areolata **   -all-   0.505 % 2       -none- 33 Toxicodendron radicans Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   -all-   0.505 % 2       -none- 34 Scirpus cyperinus Scirpus cyperinus **   Scirpus cyperinus **   Scirpus cyperinus **   Scirpus cyperinus **   Scirpus cyperinus **   Scirpus cyperinus **   Scirpus cyperinus **   Scirpus cyperinus **   -all-   0.505 % 2       -none- 35 Smilax rotundifolia Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   -all-   0.505 % 2       -none- 36 Vitis vulpina Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   -all-   0.505 % 2       -none- 37 Smilax glauca Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   -all-   0.505 % 2       -none- 38 Lobelia cardinalis Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   -all-   0.505 % 2       -none- 39 Eupatorium perfoliatum Eupatorium perfoliatum **   Eupatorium perfoliatum **   Eupatorium perfoliatum **   Eupatorium perfoliatum **   Eupatorium perfoliatum **   Eupatorium perfoliatum **   Eupatorium perfoliatum **   Eupatorium perfoliatum **   -all-   0.505 % 2       -none- 40 Mitchella repens Mitchella repens **   Mitchella repens **   Mitchella repens **   Mitchella repens **   Mitchella repens **   Mitchella repens **   Mitchella repens **   Mitchella repens **   -all-   0.505 % 2       -none- 41 Erechtites hieraciifolius Erechtites hieraciifolius **   Erechtites hieraciifolius **   Erechtites hieraciifolius **   Erechtites hieraciifolius **   Erechtites hieraciifolius **   Erechtites hieraciifolius **   Erechtites hieraciifolius **   Erechtites hieraciifolius **   -all-   0.505 % 2       -none- 42 Morella cerifera Morella cerifera **   Morella cerifera **   Morella cerifera **   Morella cerifera **   Morella cerifera **   Morella cerifera **   Morella cerifera **   Morella cerifera **   -all-   0.505 % 2       -none- 43 Mikania scandens Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   -all-   0.505 % 2       -none- 44 Samolus parviflorus Samolus parviflorus **   Samolus parviflorus **   Samolus parviflorus **   Samolus parviflorus **   Samolus parviflorus **   Samolus parviflorus **   Samolus parviflorus **   Samolus parviflorus **   -all-   0.505 % 2       -none- 45 Sanicula canadensis Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   -all-   0.505 % 2       -none- 46 Aralia spinosa Aralia spinosa **   Aralia spinosa **   Aralia spinosa **   Aralia spinosa **   Aralia spinosa **   Aralia spinosa **   Aralia spinosa **   Aralia spinosa **   -all-   0.505 % 2       -none- 47 Baccharis halimifolia Baccharis halimifolia **   Baccharis halimifolia **   Baccharis halimifolia **   Baccharis halimifolia **   Baccharis halimifolia **   Baccharis halimifolia **   Baccharis halimifolia **   Baccharis halimifolia **   -all-   0.505 % 2       -none- 48 Solidago altissima ssp. altissima Solidago altissima ssp. altissima **   Solidago altissima ssp. altissima **   Solidago altissima ssp. altissima **   Solidago altissima ssp. altissima **   Solidago altissima ssp. altissima **   Solidago altissima ssp. altissima **   Solidago altissima ssp. altissima **   Solidago altissima ssp. altissima **   -all-   0.505 % 2       -none- 49 Solidago rugosa Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   -all-   0.505 % 2       -none- 50 Gratiola virginiana Gratiola virginiana **   Gratiola virginiana **   Gratiola virginiana **   Gratiola virginiana **   Gratiola virginiana **   Gratiola virginiana **   Gratiola virginiana **   Gratiola virginiana **   -all-   0.505 % 2       -none- 51 Parthenocissus quinquefolia Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   -all-   0.505 % 2       -none- 52 Persea palustris Persea palustris **   Persea palustris **   Persea palustris **   Persea palustris **   Persea palustris **   Persea palustris **   Persea palustris **   Persea palustris **   -all-   0.505 % 2       -none- 53 Clematis terniflora Clematis terniflora **   Clematis terniflora **   Clematis terniflora **   Clematis terniflora **   Clematis terniflora **   Clematis terniflora **   Clematis terniflora **   Clematis terniflora **   -all-   0.05 % 1       -none- 54 Vitis rotundifolia var. rotundifolia Vitis rotundifolia var. rotundifolia **   Vitis rotundifolia var. rotundifolia **   Vitis rotundifolia var. rotundifolia **   Vitis rotundifolia var. rotundifolia **   Vitis rotundifolia var. rotundifolia **   Vitis rotundifolia var. rotundifolia **   Vitis rotundifolia var. rotundifolia **   Vitis rotundifolia var. rotundifolia **   -all-   0.05 % 1       -none- 55 Rumex verticillatus Rumex verticillatus **   Rumex verticillatus **   Rumex verticillatus **   Rumex verticillatus **   Rumex verticillatus **   Rumex verticillatus **   Rumex verticillatus **   Rumex verticillatus **   -all-   0.05 % 1       -none- 56 Eupatorium capillifolium Eupatorium capillifolium **   Eupatorium capillifolium **   Eupatorium capillifolium **   Eupatorium capillifolium **   Eupatorium capillifolium **   Eupatorium capillifolium **   Eupatorium capillifolium **   Eupatorium capillifolium **   -all-   0.05 % 1       -none- 57 Liquidambar styraciflua Liquidambar styraciflua **   Liquidambar styraciflua **   Liquidambar styraciflua **   Liquidambar styraciflua **   Liquidambar styraciflua **   Liquidambar styraciflua **   Liquidambar styraciflua **   Liquidambar styraciflua **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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