085-BBRP-0001
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:12636-{A545A841-B1EC-4E62-B421-F71CABA3856F} » Citing info
Plot ID Fields:
Author Plot Code	085-BBRP-0001
Author Observation Code	085-BBRP-0001
Location Fields:	MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy	100 m
Confidentiality Status	100 km radius (nearest degree)
Latitude	39 º
Longitude	-78 º
State or Province	Virginia
Named Places	county: Loudoun region|state|province: Virginia
Layout Fields:
DSG Polygon	16 x 25 m
Area	400 m²
Permanence	not permanent
Environment Fields:
Elevation	74 m
Slope Aspect	72 º
Slope Gradient	27 º
Topographic Position	lower slope
Hydrologic Regime	terrestrial (upland)
Soil Moisture Regime	mesic
Soil Drainage	well drained
Methods Fields:
Observation Start Date	21-May-1999
Observation End Date	21-May-1999
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 Cover	90 %
Shrub Cover	60 %
Field Cover	80 %
Nonvascular Cover	2 %
Misc Fields:
Observation Narrative	The habitat encompasses the lower portion of a steep, cliffy, east-facing forested bluff along the Potomac River, 0.25 mi northeast of Balls Bluff Regional Cemetery. In a detailed study of the northern Virginia Triassic basin, underlying bedrock was mapped as Balls Bluff siltstone, a calcareous formation. Fertile calcareous soils in the vicinity of the plot support such regionally noteworthy species such as Quercus muhlenbergii, Acer nigrum, Erigenia bulbosa, Erythronium albidum, Jeffersonia diphylla and Cystopteris bulbifera (in rock crevices outside plot).

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 Asimina triloba Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     5 stem(s) 12.5 cm ± 2.5 cm     1 stem(s) 2 Acer nigrum Acer nigrum **   Acer nigrum **   Acer nigrum **   Acer nigrum **   Acer nigrum **   Acer nigrum **   Acer nigrum **   Acer nigrum **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 27.5 cm ± 2.5 cm     1 stem(s) 49.5 cm ± 0.5 cm     1 stem(s) 3 Quercus muehlenbergii Quercus muehlenbergii **   Quercus muehlenbergii **   Quercus muehlenbergii **   Quercus muehlenbergii **   Quercus muehlenbergii **   Quercus muehlenbergii **   Quercus muehlenbergii **   Quercus muehlenbergii **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 87.5 cm ± 0.5 cm     1 stem(s) 4 Caulophyllum thalictroides Caulophyllum thalictroides **   Caulophyllum thalictroides **   Caulophyllum thalictroides **   Caulophyllum thalictroides **   Caulophyllum thalictroides **   Caulophyllum thalictroides **   Caulophyllum thalictroides **   Caulophyllum thalictroides **   -all-   37.5 % 7       -none- 5 Veronica hederifolia Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   -all-   17.5 % 6       -none- 6 Stellaria media Stellaria media **   Stellaria media **   Stellaria media **   Stellaria media **   Stellaria media **   Stellaria media **   Stellaria media **   Stellaria media **   -all-   17.5 % 6       -none- 7 Fraxinus americana Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 59.5 cm ± 0.5 cm     1 stem(s) 8 Glechoma hederacea Glechoma hederacea **   Glechoma hederacea **   Glechoma hederacea **   Glechoma hederacea **   Glechoma hederacea **   Glechoma hederacea **   Glechoma hederacea **   Glechoma hederacea **   -all-   17.5 % 6       -none- 9 Lindera benzoin Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   -all-   17.5 % 6       -none- 10 Alliaria petiolata Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   -all-   7.5 % 5       -none- 11 Asarum canadense Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   -all-   7.5 % 5       -none- 12 Galium aparine Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   -all-   7.5 % 5       -none- 13 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-   7.5 % 5       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 22.5 cm ± 2.5 cm     1 stem(s) 14 Impatiens pallida Impatiens pallida **   Impatiens pallida **   Impatiens pallida **   Impatiens pallida **   Impatiens pallida **   Impatiens pallida **   Impatiens pallida **   Impatiens pallida **   -all-   7.5 % 5       -none- 15 Jeffersonia diphylla Jeffersonia diphylla **   Jeffersonia diphylla **   Jeffersonia diphylla **   Jeffersonia diphylla **   Jeffersonia diphylla **   Jeffersonia diphylla **   Jeffersonia diphylla **   Jeffersonia diphylla **   -all-   3.5 % 4       -none- 16 Dicentra cucullaria Dicentra cucullaria **   Dicentra cucullaria **   Dicentra cucullaria **   Dicentra cucullaria **   Dicentra cucullaria **   Dicentra cucullaria **   Dicentra cucullaria **   Dicentra cucullaria **   -all-   3.5 % 4       -none- 17 Hydrophyllum canadense Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   -all-   3.5 % 4       -none- 18 Rubus phoenicolasius Rubus phoenicolasius **   Rubus phoenicolasius **   Rubus phoenicolasius **   Rubus phoenicolasius **   Rubus phoenicolasius **   Rubus phoenicolasius **   Rubus phoenicolasius **   Rubus phoenicolasius **   -all-   3.5 % 4       -none- 19 Vitis vulpina Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 12.5 cm ± 2.5 cm     1 stem(s) 20 Trillium sessile Trillium sessile **   Trillium sessile **   Trillium sessile **   Trillium sessile **   Trillium sessile **   Trillium sessile **   Trillium sessile **   Trillium sessile **   -all-   1.5 % 3       -none- 21 Parthenocissus quinquefolia Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   -all-   1.5 % 3       -none- 22 Cystopteris protrusa Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   -all-   1.5 % 3       -none- 23 Maianthemum racemosum ssp. racemosum Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   -all-   1.5 % 3       -none- 24 Erigenia bulbosa Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   -all-   1.5 % 3       -none- 25 Podophyllum peltatum Podophyllum peltatum **   Podophyllum peltatum **   Podophyllum peltatum **   Podophyllum peltatum **   Podophyllum peltatum **   Podophyllum peltatum **   Podophyllum peltatum **   Podophyllum peltatum **   -all-   1.5 % 3       -none- 26 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-   1.5 % 3       -none- 27 Staphylea trifolia Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   -all-   0.505 % 2       -none- 28 Dicentra canadensis Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   -all-   0.505 % 2       -none- 29 Arisaema triphyllum Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   -all-   0.505 % 2       -none- 30 Erythronium albidum Erythronium albidum **   Erythronium albidum **   Erythronium albidum **   Erythronium albidum **   Erythronium albidum **   Erythronium albidum **   Erythronium albidum **   Erythronium albidum **   -all-   0.505 % 2       -none- 31 Ulmus rubra Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   -all-   0.505 % 2       -none- 32 Viola pubescens Viola pubescens **   Viola pubescens **   Viola pubescens **   Viola pubescens **   Viola pubescens **   Viola pubescens **   Viola pubescens **   Viola pubescens **   -all-   0.505 % 2       -none- 33 Cardamine concatenata Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   -all-   0.505 % 2       -none- 34 Celtis occidentalis Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   -all-   0.505 % 2       -none- 35 Galium triflorum Galium triflorum **   Galium triflorum **   Galium triflorum **   Galium triflorum **   Galium triflorum **   Galium triflorum **   Galium triflorum **   Galium triflorum **   -all-   0.505 % 2       -none- 36 Lonicera japonica Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   -all-   0.505 % 2       -none- 37 Poa sylvestris Poa sylvestris **   Poa sylvestris **   Poa sylvestris **   Poa sylvestris **   Poa sylvestris **   Poa sylvestris **   Poa sylvestris **   Poa sylvestris **   -all-   0.505 % 2       -none- 38 Bromus pubescens Bromus pubescens **   Bromus pubescens **   Bromus pubescens **   Bromus pubescens **   Bromus pubescens **   Bromus pubescens **   Bromus pubescens **   Bromus pubescens **   -all-   0.505 % 2       -none- 39 Carex blanda Carex blanda **   Carex blanda **   Carex blanda **   Carex blanda **   Carex blanda **   Carex blanda **   Carex blanda **   Carex blanda **   -all-   0.505 % 2       -none- 40 Polymnia canadensis Polymnia canadensis **   Polymnia canadensis **   Polymnia canadensis **   Polymnia canadensis **   Polymnia canadensis **   Polymnia canadensis **   Polymnia canadensis **   Polymnia canadensis **   -all-   0.05 % 1       -none- 41 Ranunculus micranthus Ranunculus micranthus **   Ranunculus micranthus **   Ranunculus micranthus **   Ranunculus micranthus **   Ranunculus micranthus **   Ranunculus micranthus **   Ranunculus micranthus **   Ranunculus micranthus **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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