085-MNBP-0045
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:16937-{2FB8E0AF-4970-48B9-81B6-4552A2259597} » Citing info
Plot ID Fields:
Author Plot Code	085-MNBP-0045
Author Observation Code	085-MNBP-0045
Location Fields:	MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy	10 m
Confidentiality Status	100 km radius (nearest degree)
Latitude	39 º
Longitude	-78 º
State or Province	Virginia
Named Places	county: Prince William region|state|province: Virginia
Layout Fields:
DSG Polygon	20 x 20 m
Area	400 m²
Permanence	not permanent
Environment Fields:
Elevation	73 m
Slope Aspect	(n/a, flat) º
Slope Gradient	0 º
Topographic Position	basin/depression
Landform	sag pond/basin
Hydrologic Regime	non-tidal - seasonally flooded
Soil Moisture Regime	hygric
Soil Drainage	poorly drained
Methods Fields:
Observation Start Date	06-Jun-2011
Observation End Date	06-Jun-2011
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	32 m
Shrub Height	5 m
Field Height	7 m
Tree Cover	75 %
Shrub Cover	30 %
Field Cover	40 %
Nonvascular Cover	5 %
Misc Fields:
Observation Narrative	This small but excellent example of a Piedmont upland depression swamp was first discovered on 2011-04-30, at which time the site was shallowly inundated by perched groundwater and the herb layer was just emerging. A return visit was made in early June for sampling. The site was now dry and the herb layer was a tangle of patchy vines, sedges, grasses, and a few forbs. The overstory of the wetland forest is fairly mature and contains all three oaks (Quercus bicolor, Q. palustris, Q. phellos) characteristic of these habitats in northern Virginia. The swamp occupies a small (estimated 0.3-acre) depression surrounded upland oak-hickory forest; when fully inundated, it drains into a small stream on the west side. NOTE: The Dichanthelium dichotomum with cover "6" in the plot is var. ramulosum.

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 Fraxinus pennsylvanica Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     4 stem(s) 7.5 cm ± 2.5 cm     4 stem(s) 12.5 cm ± 2.5 cm     1 stem(s) 17.5 cm ± 2.5 cm     1 stem(s) 44.5 cm ± 0.5 cm     1 stem(s) 2 Quercus palustris Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 37.5 cm ± 2.5 cm     2 stem(s) 54.5 cm ± 0.5 cm     1 stem(s) 65.5 cm ± 0.5 cm     1 stem(s) 3 Quercus phellos Quercus phellos **   Quercus phellos **   Quercus phellos **   Quercus phellos **   Quercus phellos **   Quercus phellos **   Quercus phellos **   Quercus phellos **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 64.5 cm ± 0.5 cm     1 stem(s) 4 Dichanthelium dichotomum Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   -all-   17.5 % 6       -none- 5 Viburnum prunifolium Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     9 stem(s) 6 Quercus bicolor Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 45.5 cm ± 0.5 cm     1 stem(s) 7 Chionanthus virginicus Chionanthus virginicus **   Chionanthus virginicus **   Chionanthus virginicus **   Chionanthus virginicus **   Chionanthus virginicus **   Chionanthus virginicus **   Chionanthus virginicus **   Chionanthus virginicus **   -all-   7.5 % 5       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     5 stem(s) 7.5 cm ± 2.5 cm     2 stem(s) 8 Ulmus americana Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   -all-   7.5 % 5       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     2 stem(s) 9 Toxicodendron radicans Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   -all-   7.5 % 5       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     3 stem(s) 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 glabra Carya glabra **   Carya glabra **   Carya glabra **   Carya glabra **   Carya glabra **   Carya glabra **   Carya glabra **   Carya glabra **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     2 stem(s) 7.5 cm ± 2.5 cm     1 stem(s) 12 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-   1.5 % 3       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 17.5 cm ± 2.5 cm     1 stem(s) 13 Arisaema triphyllum Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   -all-   1.5 % 3       -none- 14 Acer rubrum Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 15 Carex festucacea Carex festucacea **   Carex festucacea **   Carex festucacea **   Carex festucacea **   Carex festucacea **   Carex festucacea **   Carex festucacea **   Carex festucacea **   -all-   1.5 % 3       -none- 16 Lonicera japonica Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   -all-   1.5 % 3       -none- 17 Carex complanata Carex complanata **   Carex complanata **   Carex complanata **   Carex complanata **   Carex complanata **   Carex complanata **   Carex complanata **   Carex complanata **   -all-   1.5 % 3       -none- 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 Galium obtusum ssp. obtusum Galium obtusum ssp. obtusum **   Galium obtusum ssp. obtusum **   Galium obtusum ssp. obtusum **   Galium obtusum ssp. obtusum **   Galium obtusum ssp. obtusum **   Galium obtusum ssp. obtusum **   Galium obtusum ssp. obtusum **   Galium obtusum ssp. obtusum **   -all-   1.5 % 3       -none- 20 Carex styloflexa Carex styloflexa **   Carex styloflexa **   Carex styloflexa **   Carex styloflexa **   Carex styloflexa **   Carex styloflexa **   Carex styloflexa **   Carex styloflexa **   -all-   1.5 % 3       -none- 21 Ranunculus hispidus Ranunculus hispidus **   Ranunculus hispidus **   Ranunculus hispidus **   Ranunculus hispidus **   Ranunculus hispidus **   Ranunculus hispidus **   Ranunculus hispidus **   Ranunculus hispidus **   -all-   0.505 % 2       -none- 22 Danthonia spicata Danthonia spicata **   Danthonia spicata **   Danthonia spicata **   Danthonia spicata **   Danthonia spicata **   Danthonia spicata **   Danthonia spicata **   Danthonia spicata **   -all-   0.505 % 2       -none- 23 Parthenocissus quinquefolia Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   -all-   0.505 % 2       -none- 24 Gratiola neglecta Gratiola neglecta **   Gratiola neglecta **   Gratiola neglecta **   Gratiola neglecta **   Gratiola neglecta **   Gratiola neglecta **   Gratiola neglecta **   Gratiola neglecta **   -all-   0.505 % 2       -none- 25 Dioscorea villosa Dioscorea villosa **   Dioscorea villosa **   Dioscorea villosa **   Dioscorea villosa **   Dioscorea villosa **   Dioscorea villosa **   Dioscorea villosa **   Dioscorea villosa **   -all-   0.505 % 2       -none- 26 Oxalis dillenii Oxalis dillenii **   Oxalis dillenii **   Oxalis dillenii **   Oxalis dillenii **   Oxalis dillenii **   Oxalis dillenii **   Oxalis dillenii **   Oxalis dillenii **   -all-   0.505 % 2       -none- 27 Oenothera fruticosa complex Oenothera fruticosa complex **   Oenothera fruticosa complex **   Oenothera fruticosa complex **   Oenothera fruticosa complex **   Oenothera fruticosa complex **   Oenothera fruticosa complex **   Oenothera fruticosa complex **   Oenothera fruticosa complex **   -all-   0.505 % 2       -none- 28 Diospyros virginiana Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   -all-   0.505 % 2       -none- 29 Potentilla simplex Potentilla simplex **   Potentilla simplex **   Potentilla simplex **   Potentilla simplex **   Potentilla simplex **   Potentilla simplex **   Potentilla simplex **   Potentilla simplex **   -all-   0.505 % 2       -none- 30 Smilax rotundifolia Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   -all-   0.505 % 2       -none- 31 Symphyotrichum lateriflorum Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   -all-   0.505 % 2       -none- 32 Agrostis perennans Agrostis perennans **   Agrostis perennans **   Agrostis perennans **   Agrostis perennans **   Agrostis perennans **   Agrostis perennans **   Agrostis perennans **   Agrostis perennans **   -all-   0.505 % 2       -none- 33 Viola affinis Viola affinis **   Viola affinis **   Viola affinis **   Viola affinis **   Viola affinis **   Viola affinis **   Viola affinis **   Viola affinis **   -all-   0.505 % 2       -none- 34 Scutellaria integrifolia Scutellaria integrifolia **   Scutellaria integrifolia **   Scutellaria integrifolia **   Scutellaria integrifolia **   Scutellaria integrifolia **   Scutellaria integrifolia **   Scutellaria integrifolia **   Scutellaria integrifolia **   -all-   0.505 % 2       -none- 35 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- 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 Pycnanthemum tenuifolium Pycnanthemum tenuifolium **   Pycnanthemum tenuifolium **   Pycnanthemum tenuifolium **   Pycnanthemum tenuifolium **   Pycnanthemum tenuifolium **   Pycnanthemum tenuifolium **   Pycnanthemum tenuifolium **   Pycnanthemum tenuifolium **   -all-   0.505 % 2       -none- 38 Carex tribuloides var. tribuloides Carex tribuloides var. tribuloides **   Carex tribuloides var. tribuloides **   Carex tribuloides var. tribuloides **   Carex tribuloides var. tribuloides **   Carex tribuloides var. tribuloides **   Carex tribuloides var. tribuloides **   Carex tribuloides var. tribuloides **   Carex tribuloides var. tribuloides **   -all-   0.505 % 2       -none- 39 Cinna arundinacea Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   -all-   0.505 % 2       -none- 40 Lysimachia ciliata Lysimachia ciliata **   Lysimachia ciliata **   Lysimachia ciliata **   Lysimachia ciliata **   Lysimachia ciliata **   Lysimachia ciliata **   Lysimachia ciliata **   Lysimachia ciliata **   -all-   0.505 % 2       -none- 41 Smilax glauca Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   -all-   0.505 % 2       -none- 42 Smilax herbacea Smilax herbacea **   Smilax herbacea **   Smilax herbacea **   Smilax herbacea **   Smilax herbacea **   Smilax herbacea **   Smilax herbacea **   Smilax herbacea **   -all-   0.05 % 1       -none- 43 Galium aparine Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   -all-   0.05 % 1       -none- 44 Scirpus georgianus Scirpus georgianus **   Scirpus georgianus **   Scirpus georgianus **   Scirpus georgianus **   Scirpus georgianus **   Scirpus georgianus **   Scirpus georgianus **   Scirpus georgianus **   -all-   0.05 % 1       -none- 45 Penstemon laevigatus Penstemon laevigatus **   Penstemon laevigatus **   Penstemon laevigatus **   Penstemon laevigatus **   Penstemon laevigatus **   Penstemon laevigatus **   Penstemon laevigatus **   Penstemon laevigatus **   -all-   0.05 % 1       -none- 46 Asplenium platyneuron Asplenium platyneuron **   Asplenium platyneuron **   Asplenium platyneuron **   Asplenium platyneuron **   Asplenium platyneuron **   Asplenium platyneuron **   Asplenium platyneuron **   Asplenium platyneuron **   -all-   0.05 % 1       -none- 47 Rosa multiflora Rosa multiflora **   Rosa multiflora **   Rosa multiflora **   Rosa multiflora **   Rosa multiflora **   Rosa multiflora **   Rosa multiflora **   Rosa multiflora **   -all-   0.05 % 1       -none- 48 Ruellia caroliniensis Ruellia caroliniensis **   Ruellia caroliniensis **   Ruellia caroliniensis **   Ruellia caroliniensis **   Ruellia caroliniensis **   Ruellia caroliniensis **   Ruellia caroliniensis **   Ruellia caroliniensis **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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