085-TURK-0014
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:15851-{38159EA3-4A6D-4B2D-BC5C-891EDC34A10A} » Citing info
Plot ID Fields:
Author Plot Code	085-TURK-0014
Author Observation Code	085-TURK-0014
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	10 x 40 m
Area	400 m²
Permanence	not permanent
Environment Fields:
Elevation	23 m
Slope Aspect	290 º
Slope Gradient	26 º
Topographic Position	lower slope
Landform	ravine
Hydrologic Regime	terrestrial (upland)
Soil Moisture Regime	mesic
Soil Drainage	well drained
Methods Fields:
Observation Start Date	19-May-2003
Observation End Date	19-May-2003
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	1 m
Tree Cover	80 %
Shrub Cover	75 %
Field Cover	25 %
Nonvascular Cover	40 %
Misc Fields:
Observation Narrative	Plot captures a rich, densely shrubby boulderfield occupying relatively fine, weathered talus. The site is on a lower slope bordering the Potomac River floodplain, with large outcrops of the Sykesville Formation above. A linear (10 x 40 m) configuration was employed to retain environmental and compositional homogeneity. Although this plot is quite representative of Potomac Gorge boulderfields, blow-downs and light gaps have stimulated the invasion of Alliaria petiolata, which is capable of thriving even in the thin bouldery soils.

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 Staphylea trifolia Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   -all-   62.5 % 8       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     6 stem(s) 2 Acer saccharum Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   -all-   62.5 % 8       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     2 stem(s) 7.5 cm ± 2.5 cm     1 stem(s) 12.5 cm ± 2.5 cm     2 stem(s) 17.5 cm ± 2.5 cm     1 stem(s) 37.5 cm ± 2.5 cm     1 stem(s) 49.5 cm ± 0.5 cm     1 stem(s) 59.5 cm ± 0.5 cm     1 stem(s) 3 Tilia americana var. americana Tilia americana var. americana **   Tilia americana var. americana **   Tilia americana var. americana **   Tilia americana var. americana **   Tilia americana var. americana **   Tilia americana var. americana **   Tilia americana var. americana **   Tilia americana var. americana **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 12.5 cm ± 2.5 cm     1 stem(s) 27.5 cm ± 2.5 cm     1 stem(s) 32.5 cm ± 2.5 cm     1 stem(s) 4 Celtis occidentalis Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   Celtis occidentalis **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 12.5 cm ± 2.5 cm     2 stem(s) 22.5 cm ± 2.5 cm     1 stem(s) 5 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 # 57.5 cm ± 0.5 cm     1 stem(s) 6 Fagus grandifolia Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   -all-   7.5 % 5       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 7 Alliaria petiolata Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   -all-   7.5 % 5       -none- 8 Asimina triloba Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   -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) 9 Ulmus rubra Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   -all-   7.5 % 5       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 17.5 cm ± 2.5 cm     1 stem(s) 10 Asarum canadense Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   -all-   3.5 % 4       -none- 11 Parthenocissus quinquefolia Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   -all-   1.5 % 3       -none- 12 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 # 7.5 cm ± 2.5 cm     1 stem(s) 13 Veronica hederifolia Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   -all-   1.5 % 3       -none- 14 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-   1.5 % 3       -none- 15 Lindera benzoin Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   -all-   1.5 % 3       -none- 16 Cystopteris protrusa Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   -all-   0.505 % 2       -none- 17 Festuca subverticillata Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   -all-   0.505 % 2       -none- 18 Euonymus alatus Euonymus alatus **   Euonymus alatus **   Euonymus alatus **   Euonymus alatus **   Euonymus alatus **   Euonymus alatus **   Euonymus alatus **   Euonymus alatus **   -all-   0.505 % 2       -none- 19 Sanicula odorata Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   -all-   0.505 % 2       -none- 20 Dryopteris marginalis Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   -all-   0.505 % 2       -none- 21 Toxicodendron radicans Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   -all-   0.505 % 2       -none- 22 Polygonatum biflorum var. commutatum Polygonatum biflorum var. commutatum **   Polygonatum biflorum var. commutatum **   Polygonatum biflorum var. commutatum **   Polygonatum biflorum var. commutatum **   Polygonatum biflorum var. commutatum **   Polygonatum biflorum var. commutatum **   Polygonatum biflorum var. commutatum **   Polygonatum biflorum var. commutatum **   -all-   0.505 % 2       -none- 23 Arisaema triphyllum Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   -all-   0.505 % 2       -none- 24 Polystichum acrostichoides Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   -all-   0.505 % 2       -none- 25 Quercus montana Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   -all-   0.505 % 2       -none- 26 Carex albursina Carex albursina **   Carex albursina **   Carex albursina **   Carex albursina **   Carex albursina **   Carex albursina **   Carex albursina **   Carex albursina **   -all-   0.505 % 2       -none- 27 Galium aparine Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   -all-   0.505 % 2       -none- 28 Potentilla indica Potentilla indica **   Potentilla indica **   Potentilla indica **   Potentilla indica **   Potentilla indica **   Potentilla indica **   Potentilla indica **   Potentilla indica **   -all-   0.505 % 2       -none- 29 Osmorhiza longistylis Osmorhiza longistylis **   Osmorhiza longistylis **   Osmorhiza longistylis **   Osmorhiza longistylis **   Osmorhiza longistylis **   Osmorhiza longistylis **   Osmorhiza longistylis **   Osmorhiza longistylis **   -all-   0.505 % 2       -none- 30 Eurybia divaricata Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   -all-   0.505 % 2       -none- 31 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- 32 Carya cordiformis Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   -all-   0.505 % 2       -none- 33 Carex jamesii Carex jamesii **   Carex jamesii **   Carex jamesii **   Carex jamesii **   Carex jamesii **   Carex jamesii **   Carex jamesii **   Carex jamesii **   -all-   0.505 % 2       -none- 34 Aralia nudicaulis Aralia nudicaulis **   Aralia nudicaulis **   Aralia nudicaulis **   Aralia nudicaulis **   Aralia nudicaulis **   Aralia nudicaulis **   Aralia nudicaulis **   Aralia nudicaulis **   -all-   0.505 % 2       -none- 35 Humulus japonicus Humulus japonicus **   Humulus japonicus **   Humulus japonicus **   Humulus japonicus **   Humulus japonicus **   Humulus japonicus **   Humulus japonicus **   Humulus japonicus **   -all-   0.505 % 2       -none- 36 Geum canadense Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   -all-   0.505 % 2       -none- 37 Solidago flexicaulis Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   -all-   0.505 % 2       -none- 38 Ageratina altissima var. altissima Ageratina altissima var. altissima **   Ageratina altissima var. altissima **   Ageratina altissima var. altissima **   Ageratina altissima var. altissima **   Ageratina altissima var. altissima **   Ageratina altissima var. altissima **   Ageratina altissima var. altissima **   Ageratina altissima var. altissima **   -all-   0.505 % 2       -none- 39 Viola pensylvanica Viola pensylvanica **   Viola pensylvanica **   Viola pensylvanica **   Viola pensylvanica **   Viola pensylvanica **   Viola pensylvanica **   Viola pensylvanica **   Viola pensylvanica **   -all-   0.505 % 2       -none-
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Stratum Definitions:
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