085-GFNP-0041
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:13677-{C3293568-F854-4724-8BBC-A51DE54A1CEE} » Citing info
Plot ID Fields:
Author Plot Code	085-GFNP-0041
Author Observation Code	085-GFNP-0041
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	16 x 25 m
Area	400 m²
Permanence	not permanent
Environment Fields:
Elevation	48 m
Slope Aspect	(n/a, flat) º
Slope Gradient	1 º
Topographic Position	plain/level/bottom
Landform	seep/swale/non-alluvial bottom
Hydrologic Regime	non-tidal - saturated
Soil Moisture Regime	hygric
Soil Drainage	poorly drained
Methods Fields:
Observation Start Date	10-Jun-2004
Observation End Date	10-Jun-2004
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	30 m
Shrub Height	5 m
Field Height	1 m
Tree Cover	85 %
Shrub Cover	45 %
Field Cover	90 %
Nonvascular Cover	6 %
Misc Fields:
Observation Narrative	Plot captures a forested wetland located on a bedrock terrace above the Potomac River. This site likely represents an oxbow of a Pleistocene channel of the river. Abundant groundwater draining through adjacent slopes on both sides is apparently forced to the surface by the underlying bedrock stratigraphy of the terrace (A.H. Fleming, pers. comm.). Symplocarpus foetidus dominates the vernal aspect of the herb layer while Saururus cernuus assumes dominance in the summer. This site may be inundated by rare, catastrophic (100-year class) floods. Mean groundwater pH (5 samples) = 5.94. Mean groundwater temperature (deg. C, 5 samples) = 14.49.

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 Symplocarpus foetidus Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   -all-   62.5 % 8       -none- 2 Acer rubrum Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   -all-   62.5 % 8       DBH DBH err Ht. Ht. Err # 17.5 cm ± 2.5 cm     2 stem(s) 22.5 cm ± 2.5 cm     2 stem(s) 37.5 cm ± 2.5 cm     2 stem(s) 41.5 cm ± 0.5 cm     1 stem(s) 47.5 cm ± 0.5 cm     1 stem(s) 47.5 cm ± 0.5 cm     1 stem(s) 55.5 cm ± 0.5 cm     1 stem(s) 79.5 cm ± 0.5 cm     1 stem(s) 3 Ilex verticillata Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     25 stem(s) 4 Saururus cernuus Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   -all-   17.5 % 6       -none- 5 Liriodendron tulipifera Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 7.5 cm ± 2.5 cm     2 stem(s) 12.5 cm ± 2.5 cm     1 stem(s) 17.5 cm ± 2.5 cm     1 stem(s) 67.5 cm ± 0.5 cm     1 stem(s) 6 Lindera benzoin Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   -all-   7.5 % 5       -none- 7 Fraxinus americana Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 8 Smilax rotundifolia Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   -all-   3.5 % 4       -none- 9 Viburnum dentatum var. dentatum Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   -all-   3.5 % 4       -none- 10 Impatiens capensis Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   -all-   3.5 % 4       -none- 11 Carya cordiformis Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 12 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-   1.5 % 3       -none- 13 Microstegium vimineum Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   -all-   1.5 % 3       -none- 14 Nyssa sylvatica Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     2 stem(s) 7.5 cm ± 2.5 cm     1 stem(s) 15 Vitis labrusca Vitis labrusca **   Vitis labrusca **   Vitis labrusca **   Vitis labrusca **   Vitis labrusca **   Vitis labrusca **   Vitis labrusca **   Vitis labrusca **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 16 Boehmeria cylindrica Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   -all-   1.5 % 3       -none- 17 Asimina triloba Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 18 Leersia virginica Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   -all-   1.5 % 3       -none- 19 Pilea pumila Pilea pumila **   Pilea pumila **   Pilea pumila **   Pilea pumila **   Pilea pumila **   Pilea pumila **   Pilea pumila **   Pilea pumila **   -all-   1.5 % 3       -none- 20 Cinna arundinacea Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   -all-   1.5 % 3       -none- 21 Poa trivialis Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   -all-   0.505 % 2       -none- 22 Smilax glauca Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   -all-   0.505 % 2       -none- 23 Amphicarpaea bracteata Amphicarpaea bracteata **   Amphicarpaea bracteata **   Amphicarpaea bracteata **   Amphicarpaea bracteata **   Amphicarpaea bracteata **   Amphicarpaea bracteata **   Amphicarpaea bracteata **   Amphicarpaea bracteata **   -all-   0.505 % 2       -none- 24 Arisaema triphyllum Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   -all-   0.505 % 2       -none- 25 Dryopteris carthusiana Dryopteris carthusiana **   Dryopteris carthusiana **   Dryopteris carthusiana **   Dryopteris carthusiana **   Dryopteris carthusiana **   Dryopteris carthusiana **   Dryopteris carthusiana **   Dryopteris carthusiana **   -all-   0.505 % 2       -none- 26 Dichanthelium dichotomum var. dichotomum Dichanthelium dichotomum var. dichotomum **   Dichanthelium dichotomum var. dichotomum **   Dichanthelium dichotomum var. dichotomum **   Dichanthelium dichotomum var. dichotomum **   Dichanthelium dichotomum var. dichotomum **   Dichanthelium dichotomum var. dichotomum **   Dichanthelium dichotomum var. dichotomum **   Dichanthelium dichotomum var. dichotomum **   -all-   0.505 % 2       -none- 27 Toxicodendron radicans Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   -all-   0.505 % 2       -none- 28 Rosa palustris Rosa palustris **   Rosa palustris **   Rosa palustris **   Rosa palustris **   Rosa palustris **   Rosa palustris **   Rosa palustris **   Rosa palustris **   -all-   0.505 % 2       -none- 29 Geum canadense Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   -all-   0.505 % 2       -none- 30 Celastrus orbiculatus Celastrus orbiculatus **   Celastrus orbiculatus **   Celastrus orbiculatus **   Celastrus orbiculatus **   Celastrus orbiculatus **   Celastrus orbiculatus **   Celastrus orbiculatus **   Celastrus orbiculatus **   -all-   0.505 % 2       -none- 31 Lycopus virginicus Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   -all-   0.505 % 2       -none- 32 Parthenocissus quinquefolia Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   -all-   0.505 % 2       -none- 33 Athyrium asplenioides Athyrium asplenioides **   Athyrium asplenioides **   Athyrium asplenioides **   Athyrium asplenioides **   Athyrium asplenioides **   Athyrium asplenioides **   Athyrium asplenioides **   Athyrium asplenioides **   -all-   0.505 % 2       -none- 34 Lonicera japonica Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   -all-   0.505 % 2       -none- 35 Persicaria arifolia Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   -all-   0.505 % 2       -none- 36 Ranunculus recurvatus var. recurvatus Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   -all-   0.505 % 2       -none- 37 Poa cuspidata Poa cuspidata **   Poa cuspidata **   Poa cuspidata **   Poa cuspidata **   Poa cuspidata **   Poa cuspidata **   Poa cuspidata **   Poa cuspidata **   -all-   0.505 % 2       -none- 38 Persicaria punctata Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   -all-   0.505 % 2       -none- 39 Cardamine pensylvanica Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   -all-   0.505 % 2       -none- 40 Carex laevivaginata Carex laevivaginata **   Carex laevivaginata **   Carex laevivaginata **   Carex laevivaginata **   Carex laevivaginata **   Carex laevivaginata **   Carex laevivaginata **   Carex laevivaginata **   -all-   0.505 % 2       -none- 41 Cryptotaenia canadensis Cryptotaenia canadensis **   Cryptotaenia canadensis **   Cryptotaenia canadensis **   Cryptotaenia canadensis **   Cryptotaenia canadensis **   Cryptotaenia canadensis **   Cryptotaenia canadensis **   Cryptotaenia canadensis **   -all-   0.505 % 2       -none- 42 Festuca subverticillata Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   -all-   0.05 % 1       -none- 43 Quercus palustris Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   -all-   0.05 % 1       -none- 44 Circaea canadensis ssp. canadensis Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   -all-   0.05 % 1       -none- 45 Pinus sp. Pinus sp. **   Pinus sp. **   Pinus sp. **   Pinus sp. **   Pinus sp. **   Pinus sp. **   Pinus sp. **   Pinus sp. **   -all-   0.05 % 1       -none- 46 Sanicula odorata Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   -all-   0.05 % 1       -none- 47 Bidens comosa Bidens comosa **   Bidens comosa **   Bidens comosa **   Bidens comosa **   Bidens comosa **   Bidens comosa **   Bidens comosa **   Bidens comosa **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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