085-SCRU-0009
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:15438-{1A5E0091-F39D-44E7-9511-43619ABDA31A} » Citing info
Plot ID Fields:
Author Plot Code	085-SCRU-0009
Author Observation Code	085-SCRU-0009
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	42 m
Slope Aspect	358 º
Slope Gradient	34 º
Topographic Position	middle slope
Landform	ravine
Hydrologic Regime	terrestrial (upland)
Soil Moisture Regime	submesic
Soil Drainage	well drained
Methods Fields:
Observation Start Date	10-Jun-2003
Observation End Date	10-Jun-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	5 m
Tree Cover	95 %
Shrub Cover	15 %
Field Cover	80 %
Nonvascular Cover	8 %
Misc Fields:
Observation Narrative	This very steep, concave slope may have shallow soils over bedrock, at least in the downslope portion. The forest vegetation is characteristic of a specific elevation zone on the north-facing bluff bordering the Potomac River. Large-diameter Quercus montana dominate the overstory, with considerable admixture of large Liriodendron tulipifera, Fagus grandifolia and, outside the plot, Quercus rubra. Much smaller Acer saccharum dominate the understory. This plot may be part of an old-age stand; at least it appears to have remained undisturbed for a long period of time. The herbaceous flora is very distinctive and characterized by dense colonies of Eurybia divaricata, Polystichum acrostichoides, Dryopteris marginalis, and several Carex spp.

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 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     7 stem(s) 7.5 cm ± 2.5 cm     6 stem(s) 12.5 cm ± 2.5 cm     2 stem(s) 17.5 cm ± 2.5 cm     1 stem(s) 27.5 cm ± 2.5 cm     1 stem(s) 2 Eurybia divaricata Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   -all-   62.5 % 8       -none- 3 Quercus montana Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 27.5 cm ± 2.5 cm     1 stem(s) 80.5 cm ± 0.5 cm     1 stem(s) 90.5 cm ± 0.5 cm     1 stem(s) 4 Ostrya virginiana Ostrya virginiana **   Ostrya virginiana **   Ostrya virginiana **   Ostrya virginiana **   Ostrya virginiana **   Ostrya virginiana **   Ostrya virginiana **   Ostrya virginiana **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     5 stem(s) 12.5 cm ± 2.5 cm     5 stem(s) 5 Fagus grandifolia Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     4 stem(s) 50.5 cm ± 0.5 cm     1 stem(s) 6 Liriodendron tulipifera Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 71.5 cm ± 0.5 cm     1 stem(s) 7 Polystichum acrostichoides Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   -all-   17.5 % 6       -none- 8 Dryopteris marginalis Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   -all-   17.5 % 6       -none- 9 Asimina triloba Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   -all-   7.5 % 5       -none- 10 Erythronium americanum ssp. americanum Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   -all-   3.5 % 4       -none- 11 Acer rubrum Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 12.5 cm ± 2.5 cm     1 stem(s) 12 Carya cordiformis Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 22.5 cm ± 2.5 cm     1 stem(s) 13 Fraxinus americana Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 12.5 cm ± 2.5 cm     1 stem(s) 22.5 cm ± 2.5 cm     1 stem(s) 14 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-   3.5 % 4       DBH DBH err Ht. Ht. Err # 12.5 cm ± 2.5 cm     1 stem(s) 15 Solidago flexicaulis Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   -all-   1.5 % 3       -none- 16 Brachyelytrum erectum Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   -all-   1.5 % 3       -none- 17 Carex platyphylla Carex platyphylla **   Carex platyphylla **   Carex platyphylla **   Carex platyphylla **   Carex platyphylla **   Carex platyphylla **   Carex platyphylla **   Carex platyphylla **   -all-   1.5 % 3       -none- 18 Stellaria pubera Stellaria pubera **   Stellaria pubera **   Stellaria pubera **   Stellaria pubera **   Stellaria pubera **   Stellaria pubera **   Stellaria pubera **   Stellaria pubera **   -all-   1.5 % 3       -none- 19 Betula lenta var. lenta Betula lenta var. lenta **   Betula lenta var. lenta **   Betula lenta var. lenta **   Betula lenta var. lenta **   Betula lenta var. lenta **   Betula lenta var. lenta **   Betula lenta var. lenta **   Betula lenta var. lenta **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 20 Hamamelis virginiana var. virginiana Hamamelis virginiana var. virginiana **   Hamamelis virginiana var. virginiana **   Hamamelis virginiana var. virginiana **   Hamamelis virginiana var. virginiana **   Hamamelis virginiana var. virginiana **   Hamamelis virginiana var. virginiana **   Hamamelis virginiana var. virginiana **   Hamamelis virginiana var. virginiana **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 7.5 cm ± 2.5 cm     1 stem(s) 21 Dicentra canadensis Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   -all-   1.5 % 3       -none- 22 Viburnum acerifolium Viburnum acerifolium **   Viburnum acerifolium **   Viburnum acerifolium **   Viburnum acerifolium **   Viburnum acerifolium **   Viburnum acerifolium **   Viburnum acerifolium **   Viburnum acerifolium **   -all-   1.5 % 3       -none- 23 Parthenocissus quinquefolia Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   -all-   1.5 % 3       -none- 24 Hydrangea arborescens Hydrangea arborescens **   Hydrangea arborescens **   Hydrangea arborescens **   Hydrangea arborescens **   Hydrangea arborescens **   Hydrangea arborescens **   Hydrangea arborescens **   Hydrangea arborescens **   -all-   1.5 % 3       -none- 25 Claytonia virginica Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   -all-   1.5 % 3       -none- 26 Solidago caesia var. caesia Solidago caesia var. caesia **   Solidago caesia var. caesia **   Solidago caesia var. caesia **   Solidago caesia var. caesia **   Solidago caesia var. caesia **   Solidago caesia var. caesia **   Solidago caesia var. caesia **   Solidago caesia var. caesia **   -all-   1.5 % 3       -none- 27 Polypodium virginianum Polypodium virginianum **   Polypodium virginianum **   Polypodium virginianum **   Polypodium virginianum **   Polypodium virginianum **   Polypodium virginianum **   Polypodium virginianum **   Polypodium virginianum **   -all-   0.505 % 2       -none- 28 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-   0.505 % 2       -none- 29 Festuca subverticillata Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   -all-   0.505 % 2       -none- 30 Persicaria virginiana Persicaria virginiana **   Persicaria virginiana **   Persicaria virginiana **   Persicaria virginiana **   Persicaria virginiana **   Persicaria virginiana **   Persicaria virginiana **   Persicaria virginiana **   -all-   0.505 % 2       -none- 31 Elymus hystrix Elymus hystrix **   Elymus hystrix **   Elymus hystrix **   Elymus hystrix **   Elymus hystrix **   Elymus hystrix **   Elymus hystrix **   Elymus hystrix **   -all-   0.505 % 2       -none- 32 Boechera laevigata Boechera laevigata **   Boechera laevigata **   Boechera laevigata **   Boechera laevigata **   Boechera laevigata **   Boechera laevigata **   Boechera laevigata **   Boechera laevigata **   -all-   0.505 % 2       -none- 33 Nyssa sylvatica Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   -all-   0.505 % 2       -none- 34 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-   0.505 % 2       -none- 35 Poa cuspidata Poa cuspidata **   Poa cuspidata **   Poa cuspidata **   Poa cuspidata **   Poa cuspidata **   Poa cuspidata **   Poa cuspidata **   Poa cuspidata **   -all-   0.505 % 2       -none- 36 Stellaria media Stellaria media **   Stellaria media **   Stellaria media **   Stellaria media **   Stellaria media **   Stellaria media **   Stellaria media **   Stellaria media **   -all-   0.505 % 2       -none- 37 Carex communis Carex communis **   Carex communis **   Carex communis **   Carex communis **   Carex communis **   Carex communis **   Carex communis **   Carex communis **   -all-   0.505 % 2       -none- 38 Arisaema triphyllum Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   -all-   0.505 % 2       -none- 39 Micranthes virginiensis Micranthes virginiensis **   Micranthes virginiensis **   Micranthes virginiensis **   Micranthes virginiensis **   Micranthes virginiensis **   Micranthes virginiensis **   Micranthes virginiensis **   Micranthes virginiensis **   -all-   0.505 % 2       -none- 40 Lactuca canadensis Lactuca canadensis **   Lactuca canadensis **   Lactuca canadensis **   Lactuca canadensis **   Lactuca canadensis **   Lactuca canadensis **   Lactuca canadensis **   Lactuca canadensis **   -all-   0.505 % 2       -none- 41 Carex laxiflora Carex laxiflora **   Carex laxiflora **   Carex laxiflora **   Carex laxiflora **   Carex laxiflora **   Carex laxiflora **   Carex laxiflora **   Carex laxiflora **   -all-   0.505 % 2       -none- 42 Dioscorea quaternata Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   -all-   0.505 % 2       -none- 43 Collinsonia canadensis Collinsonia canadensis **   Collinsonia canadensis **   Collinsonia canadensis **   Collinsonia canadensis **   Collinsonia canadensis **   Collinsonia canadensis **   Collinsonia canadensis **   Collinsonia canadensis **   -all-   0.505 % 2       -none- 44 Allium tricoccum Allium tricoccum **   Allium tricoccum **   Allium tricoccum **   Allium tricoccum **   Allium tricoccum **   Allium tricoccum **   Allium tricoccum **   Allium tricoccum **   -all-   0.505 % 2       -none- 45 Osmorhiza claytonii Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   -all-   0.505 % 2       -none- 46 Carex virescens Carex virescens **   Carex virescens **   Carex virescens **   Carex virescens **   Carex virescens **   Carex virescens **   Carex virescens **   Carex virescens **   -all-   0.505 % 2       -none- 47 Rubus flagellaris Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   -all-   0.05 % 1       -none- 48 Galium aparine Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   -all-   0.05 % 1       -none- 49 Polygonatum biflorum var. biflorum Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   -all-   0.05 % 1       -none- 50 Prunus subhirtella Prunus subhirtella **   Prunus subhirtella **   Prunus subhirtella **   Prunus subhirtella **   Prunus subhirtella **   Prunus subhirtella **   Prunus subhirtella **   Prunus subhirtella **   -all-   0.05 % 1       -none- 51 Cardamine concatenata Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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