085-FAIR-0046
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:16288-{8E33CDAD-EE9A-4B16-9C63-A3B3780B96E9} » Citing info
Plot ID Fields:
Author Plot Code	085-FAIR-0046
Author Observation Code	085-FAIR-0046
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	15 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	hygric
Soil Drainage	poorly drained
Methods Fields:
Observation Start Date	10-Jun-2008
Observation End Date	10-Jun-2008
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	25 m
Shrub Height	6 m
Field Height	1 m
Tree Cover	60 %
Shrub Cover	75 %
Field Cover	70 %
Nonvascular Cover	30 %
Misc Fields:
Observation Narrative	This vegetation occupies a fairly extensive flat lying between a railroad grade and Pohick Creek, just east of Interstate 95. Much of this area is seasonally to permanently saturated with braided, groundwater seepage and has a history of fires, no doubt originating from railroad disturbances. A cohort of medium to large-diameter (up to 70 cm DBH) pitch pines probably dates from an old fire, while epicormic sprouts on these pines and coppice sprouts of younger hardwoods probably dates from a more recent fire. The plot was positioned in one of the more open-canopy portions of the wetland, much of which is now shaded by a young cohort of red maple. Diversity and density of shrubs and shrubby tree saplings in the sample area is notably high. Toxicodendron vernix, Rhododendron viscosum, and Leucothoe racemosa contribute the highest cover to this layer. The herb layer is dominated by Symplocarpus foetidus and Osmunda cinnamomea. This vegetation has compositional affinities with the D.C. area's "Fall Line Terrace-Gravel Magnolia Bogs," but appears to be transitional with, and succeeding to, a more forested "seepage swamp" community type.

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 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 # 3.75 cm ± 1.25 cm     3 stem(s) 7.5 cm ± 2.5 cm     17 stem(s) 12.5 cm ± 2.5 cm     15 stem(s) 17.5 cm ± 2.5 cm     6 stem(s) 2 Symplocarpus foetidus Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   -all-   37.5 % 7       -none- 3 Rhododendron viscosum Rhododendron viscosum **   Rhododendron viscosum **   Rhododendron viscosum **   Rhododendron viscosum **   Rhododendron viscosum **   Rhododendron viscosum **   Rhododendron viscosum **   Rhododendron viscosum **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     14 stem(s) 4 Nyssa sylvatica Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     6 stem(s) 7.5 cm ± 2.5 cm     4 stem(s) 12.5 cm ± 2.5 cm     3 stem(s) 17.5 cm ± 2.5 cm     1 stem(s) 22.5 cm ± 2.5 cm     1 stem(s) 5 Pinus rigida Pinus rigida **   Pinus rigida **   Pinus rigida **   Pinus rigida **   Pinus rigida **   Pinus rigida **   Pinus rigida **   Pinus rigida **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 27.5 cm ± 2.5 cm     1 stem(s) 37.5 cm ± 2.5 cm     1 stem(s) 48.5 cm ± 0.5 cm     1 stem(s) 48.5 cm ± 0.5 cm     1 stem(s) 6 Toxicodendron vernix Toxicodendron vernix **   Toxicodendron vernix **   Toxicodendron vernix **   Toxicodendron vernix **   Toxicodendron vernix **   Toxicodendron vernix **   Toxicodendron vernix **   Toxicodendron vernix **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     4 stem(s) 7.5 cm ± 2.5 cm     1 stem(s) 7 Osmundastrum cinnamomeum Osmundastrum cinnamomeum **   Osmundastrum cinnamomeum **   Osmundastrum cinnamomeum **   Osmundastrum cinnamomeum **   Osmundastrum cinnamomeum **   Osmundastrum cinnamomeum **   Osmundastrum cinnamomeum **   Osmundastrum cinnamomeum **   -all-   7.5 % 5       -none- 8 Eubotrys racemosa Eubotrys racemosa **   Eubotrys racemosa **   Eubotrys racemosa **   Eubotrys racemosa **   Eubotrys racemosa **   Eubotrys racemosa **   Eubotrys racemosa **   Eubotrys racemosa **   -all-   7.5 % 5       -none- 9 Vaccinium fuscatum Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     3 stem(s) 7.5 cm ± 2.5 cm     1 stem(s) 10 Lyonia ligustrina var. ligustrina Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     2 stem(s) 11 Fagus grandifolia Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     3 stem(s) 7.5 cm ± 2.5 cm     1 stem(s) 12 Smilax rotundifolia Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   -all-   3.5 % 4       -none- 13 Carex atlantica Carex atlantica **   Carex atlantica **   Carex atlantica **   Carex atlantica **   Carex atlantica **   Carex atlantica **   Carex atlantica **   Carex atlantica **   -all-   3.5 % 4       -none- 14 Chasmanthium laxum Chasmanthium laxum **   Chasmanthium laxum **   Chasmanthium laxum **   Chasmanthium laxum **   Chasmanthium laxum **   Chasmanthium laxum **   Chasmanthium laxum **   Chasmanthium laxum **   -all-   1.5 % 3       -none- 15 Liquidambar styraciflua Liquidambar styraciflua **   Liquidambar styraciflua **   Liquidambar styraciflua **   Liquidambar styraciflua **   Liquidambar styraciflua **   Liquidambar styraciflua **   Liquidambar styraciflua **   Liquidambar styraciflua **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 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 Carex seorsa Carex seorsa **   Carex seorsa **   Carex seorsa **   Carex seorsa **   Carex seorsa **   Carex seorsa **   Carex seorsa **   Carex seorsa **   -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 Alnus serrulata Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 20 Dichanthelium dichotomum Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   -all-   1.5 % 3       -none- 21 Juncus effusus Juncus effusus **   Juncus effusus **   Juncus effusus **   Juncus effusus **   Juncus effusus **   Juncus effusus **   Juncus effusus **   Juncus effusus **   -all-   1.5 % 3       -none- 22 Carex scoparia var. scoparia Carex scoparia var. scoparia **   Carex scoparia var. scoparia **   Carex scoparia var. scoparia **   Carex scoparia var. scoparia **   Carex scoparia var. scoparia **   Carex scoparia var. scoparia **   Carex scoparia var. scoparia **   Carex scoparia var. scoparia **   -all-   0.505 % 2       -none- 23 Rubus flagellaris Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   -all-   0.505 % 2       -none- 24 Persicaria sagittata Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   -all-   0.505 % 2       -none- 25 Platanthera clavellata Platanthera clavellata **   Platanthera clavellata **   Platanthera clavellata **   Platanthera clavellata **   Platanthera clavellata **   Platanthera clavellata **   Platanthera clavellata **   Platanthera clavellata **   -all-   0.505 % 2       -none- 26 Quercus alba Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   -all-   0.505 % 2       -none- 27 Hypericum virginicum Hypericum virginicum **   Hypericum virginicum **   Hypericum virginicum **   Hypericum virginicum **   Hypericum virginicum **   Hypericum virginicum **   Hypericum virginicum **   Hypericum virginicum **   -all-   0.505 % 2       -none- 28 Arisaema triphyllum Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   -all-   0.505 % 2       -none- 29 Rubus hispidus Rubus hispidus **   Rubus hispidus **   Rubus hispidus **   Rubus hispidus **   Rubus hispidus **   Rubus hispidus **   Rubus hispidus **   Rubus hispidus **   -all-   0.505 % 2       -none- 30 Amelanchier canadensis Amelanchier canadensis **   Amelanchier canadensis **   Amelanchier canadensis **   Amelanchier canadensis **   Amelanchier canadensis **   Amelanchier canadensis **   Amelanchier canadensis **   Amelanchier canadensis **   -all-   0.505 % 2       -none- 31 Microstegium vimineum Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   -all-   0.505 % 2       -none- 32 Solidago rugosa Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   -all-   0.505 % 2       -none- 33 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-   0.505 % 2       -none- 34 Quercus phellos Quercus phellos **   Quercus phellos **   Quercus phellos **   Quercus phellos **   Quercus phellos **   Quercus phellos **   Quercus phellos **   Quercus phellos **   -all-   0.505 % 2       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 35 Boehmeria cylindrica Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   -all-   0.505 % 2       -none- 36 Ilex verticillata Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   -all-   0.505 % 2       -none- 37 Viola primulifolia Viola primulifolia **   Viola primulifolia **   Viola primulifolia **   Viola primulifolia **   Viola primulifolia **   Viola primulifolia **   Viola primulifolia **   Viola primulifolia **   -all-   0.505 % 2       -none- 38 Symphyotrichum lateriflorum Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   -all-   0.505 % 2       -none- 39 Carpinus caroliniana Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   -all-   0.505 % 2       -none- 40 Dichanthelium lucidum Dichanthelium lucidum **   Dichanthelium lucidum **   Dichanthelium lucidum **   Dichanthelium lucidum **   Dichanthelium lucidum **   Dichanthelium lucidum **   Dichanthelium lucidum **   Dichanthelium lucidum **   -all-   0.505 % 2       -none- 41 Cinna arundinacea Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   -all-   0.505 % 2       -none- 42 Carex leptalea Carex leptalea **   Carex leptalea **   Carex leptalea **   Carex leptalea **   Carex leptalea **   Carex leptalea **   Carex leptalea **   Carex leptalea **   -all-   0.505 % 2       -none- 43 Carex lurida Carex lurida **   Carex lurida **   Carex lurida **   Carex lurida **   Carex lurida **   Carex lurida **   Carex lurida **   Carex lurida **   -all-   0.505 % 2       -none- 44 Lycopus virginicus Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   -all-   0.505 % 2       -none- 45 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- 46 Viburnum dentatum Viburnum dentatum **   Viburnum dentatum **   Viburnum dentatum **   Viburnum dentatum **   Viburnum dentatum **   Viburnum dentatum **   Viburnum dentatum **   Viburnum dentatum **   -all-   0.505 % 2       -none- 47 Rosa palustris Rosa palustris **   Rosa palustris **   Rosa palustris **   Rosa palustris **   Rosa palustris **   Rosa palustris **   Rosa palustris **   Rosa palustris **   -all-   0.05 % 1       -none- 48 Mitchella repens Mitchella repens **   Mitchella repens **   Mitchella repens **   Mitchella repens **   Mitchella repens **   Mitchella repens **   Mitchella repens **   Mitchella repens **   -all-   0.05 % 1       -none- 49 Aronia melanocarpa Aronia melanocarpa **   Aronia melanocarpa **   Aronia melanocarpa **   Aronia melanocarpa **   Aronia melanocarpa **   Aronia melanocarpa **   Aronia melanocarpa **   Aronia melanocarpa **   -all-   0.05 % 1       -none- 50 Magnolia virginiana Magnolia virginiana **   Magnolia virginiana **   Magnolia virginiana **   Magnolia virginiana **   Magnolia virginiana **   Magnolia virginiana **   Magnolia virginiana **   Magnolia virginiana **   -all-   0.05 % 1       -none- 51 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-   0.05 % 1       -none-
This table is SORTABLE. Click the headers to sort ascending and descending.

Stratum Definitions:
Sorry, no Stratum Definitions found.
This table is SORTABLE. Click the headers to sort ascending and descending.