085-MNBP-0001
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:14843-{208B63F2-2041-46FB-A3F7-AF487BD47AC3} » Citing info
Plot ID Fields:
Author Plot Code	085-MNBP-0001
Author Observation Code	085-MNBP-0001
Location Fields:	MAP: Google | Yahoo | TopoZone | MapQuest
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	49 m
Slope Aspect	135 º
Slope Gradient	0 º
Topographic Position	plain/level/bottom
Landform	undulating/flat plain
Hydrologic Regime	non-tidal - seasonally flooded
Soil Moisture Regime	subhydric
Soil Drainage	poorly drained
Methods Fields:
Observation Start Date	23-May-2000
Observation End Date	23-May-2000
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
Misc Fields:
Observation Narrative	Plot location: In backswamp of Bull Run floodplain, ca. 0.2 mi. SW of Stone Bridge on US 29. No surface rocks present. The habitat of this plot is seasonally flooded, with clay-rich soils. Flooding depth is ca. 25 cm in the lowest sloughs. Vegetation is a good example of a fairly mature swamp forest dominated by Quercus palustris, Fraxinus pennsylvanica, and Acer negundo. The herbaceous flora features species typical of seasonally flooded sloughs (e.g., Saururus cernuus, Carex lupulina, Carex typhina), along with species restricted to better-drained hummocks (e.g., Circaea lutetiana spp. canadensis, Allium canadense, Elymus riparius). The exotic, invasive grass Microstegium vimineum is a distinct threat to the integrity of this forest.

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 negundo var. negundo Acer negundo var. negundo **   Acer negundo var. negundo **   Acer negundo var. negundo **   Acer negundo var. negundo **   Acer negundo var. negundo **   Acer negundo var. negundo **   Acer negundo var. negundo **   Acer negundo var. negundo **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 7.5 cm ± 2.5 cm     14 stem(s) 12.5 cm ± 2.5 cm     3 stem(s) 22.5 cm ± 2.5 cm     1 stem(s) 2 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     2 stem(s) 7.5 cm ± 2.5 cm     3 stem(s) 12.5 cm ± 2.5 cm     1 stem(s) 22.5 cm ± 2.5 cm     1 stem(s) 37.5 cm ± 2.5 cm     1 stem(s) 42.5 cm ± 0.5 cm     1 stem(s) 3 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 # 58.5 cm ± 0.5 cm     1 stem(s) 63.5 cm ± 0.5 cm     1 stem(s) 4 Ulmus americana Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 12.5 cm ± 2.5 cm     1 stem(s) 22.5 cm ± 2.5 cm     5 stem(s) 5 Saururus cernuus Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   -all-   17.5 % 6       -none- 6 Carex grayi Carex grayi **   Carex grayi **   Carex grayi **   Carex grayi **   Carex grayi **   Carex grayi **   Carex grayi **   Carex grayi **   -all-   7.5 % 5       -none- 7 Cinna arundinacea Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   -all-   7.5 % 5       -none- 8 Carex typhina Carex typhina **   Carex typhina **   Carex typhina **   Carex typhina **   Carex typhina **   Carex typhina **   Carex typhina **   Carex typhina **   -all-   7.5 % 5       -none- 9 Quercus bicolor Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 45.5 cm ± 0.5 cm     1 stem(s) 10 Boehmeria cylindrica Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   -all-   1.5 % 3       -none- 11 Leersia virginica Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   -all-   1.5 % 3       -none- 12 Carpinus caroliniana Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 13 Carex stipata var. stipata Carex stipata var. stipata **   Carex stipata var. stipata **   Carex stipata var. stipata **   Carex stipata var. stipata **   Carex stipata var. stipata **   Carex stipata var. stipata **   Carex stipata var. stipata **   Carex stipata var. stipata **   -all-   1.5 % 3       -none- 14 Carex tribuloides Carex tribuloides **   Carex tribuloides **   Carex tribuloides **   Carex tribuloides **   Carex tribuloides **   Carex tribuloides **   Carex tribuloides **   Carex tribuloides **   -all-   1.5 % 3       -none- 15 Poa trivialis Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   -all-   1.5 % 3       -none- 16 Microstegium vimineum Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   -all-   1.5 % 3       -none- 17 Toxicodendron radicans Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 18 Celtis occidentalis Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     3 stem(s) 19 Lindera benzoin Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   -all-   0.505 % 2       -none- 20 Sambucus canadensis Sambucus canadensis **   Sambucus canadensis **   Sambucus canadensis **   Sambucus canadensis **   Sambucus canadensis **   Sambucus canadensis **   Sambucus canadensis **   Sambucus canadensis **   -all-   0.505 % 2       -none- 21 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-   0.505 % 2       -none- 22 Cardamine pensylvanica Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   -all-   0.505 % 2       -none- 23 Lysimachia ciliata Lysimachia ciliata **   Lysimachia ciliata **   Lysimachia ciliata **   Lysimachia ciliata **   Lysimachia ciliata **   Lysimachia ciliata **   Lysimachia ciliata **   Lysimachia ciliata **   -all-   0.505 % 2       -none- 24 Sanicula canadensis Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   -all-   0.505 % 2       -none- 25 Geum canadense Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   -all-   0.505 % 2       -none- 26 Alliaria petiolata Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   -all-   0.505 % 2       -none- 27 Asimina triloba Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   -all-   0.505 % 2       -none- 28 Carex lupulina Carex lupulina **   Carex lupulina **   Carex lupulina **   Carex lupulina **   Carex lupulina **   Carex lupulina **   Carex lupulina **   Carex lupulina **   -all-   0.505 % 2       -none- 29 Symphyotrichum lateriflorum Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   Symphyotrichum lateriflorum **   -all-   0.505 % 2       -none- 30 Ranunculus abortivus Ranunculus abortivus **   Ranunculus abortivus **   Ranunculus abortivus **   Ranunculus abortivus **   Ranunculus abortivus **   Ranunculus abortivus **   Ranunculus abortivus **   Ranunculus abortivus **   -all-   0.505 % 2       -none- 31 Impatiens capensis Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   -all-   0.505 % 2       -none- 32 Scutellaria lateriflora Scutellaria lateriflora **   Scutellaria lateriflora **   Scutellaria lateriflora **   Scutellaria lateriflora **   Scutellaria lateriflora **   Scutellaria lateriflora **   Scutellaria lateriflora **   Scutellaria lateriflora **   -all-   0.505 % 2       -none- 33 Persicaria longiseta Persicaria longiseta **   Persicaria longiseta **   Persicaria longiseta **   Persicaria longiseta **   Persicaria longiseta **   Persicaria longiseta **   Persicaria longiseta **   Persicaria longiseta **   -all-   0.505 % 2       -none- 34 Vitis vulpina Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   -all-   0.505 % 2       -none- 35 Elymus riparius Elymus riparius **   Elymus riparius **   Elymus riparius **   Elymus riparius **   Elymus riparius **   Elymus riparius **   Elymus riparius **   Elymus riparius **   -all-   0.505 % 2       -none- 36 Parthenocissus quinquefolia Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   -all-   0.505 % 2       -none- 37 Allium canadense var. canadense Allium canadense var. canadense **   Allium canadense var. canadense **   Allium canadense var. canadense **   Allium canadense var. canadense **   Allium canadense var. canadense **   Allium canadense var. canadense **   Allium canadense var. canadense **   Allium canadense var. canadense **   -all-   0.505 % 2       -none- 38 Lycopus virginicus Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   -all-   0.505 % 2       -none- 39 Festuca subverticillata Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   -all-   0.505 % 2       -none- 40 Carex radiata Carex radiata **   Carex radiata **   Carex radiata **   Carex radiata **   Carex radiata **   Carex radiata **   Carex radiata **   Carex radiata **   -all-   0.505 % 2       -none- 41 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-   0.505 % 2       -none- 42 Mimulus alatus Mimulus alatus **   Mimulus alatus **   Mimulus alatus **   Mimulus alatus **   Mimulus alatus **   Mimulus alatus **   Mimulus alatus **   Mimulus alatus **   -all-   0.505 % 2       -none- 43 Carya cordiformis Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   -all-   0.05 % 1       -none- 44 Diospyros virginiana Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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