085-SCRU-0002
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:15431-{0AB0AA20-2C6D-4B29-82C8-1946FFD3717B} » Citing info
Plot ID Fields:
Author Plot Code	085-SCRU-0002
Author Observation Code	085-SCRU-0002
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	24 m
Slope Aspect	5 º
Slope Gradient	20 º
Topographic Position	lower slope
Landform	ravine
Hydrologic Regime	terrestrial (upland)
Soil Moisture Regime	mesic
Soil Drainage	well drained
Methods Fields:
Observation Start Date	29-Apr-2003
Observation End Date	29-Apr-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	36 m
Shrub Height	6 m
Field Height	8 m
Tree Cover	95 %
Shrub Cover	65 %
Field Cover	60 %
Nonvascular Cover	25 %
Misc Fields:
Observation Narrative	The plot is located at the base of a very bouldery, colluvium-filled concavity in the bluff along the Potomac River floodplain. Highly calcareous soil and a sheltered, cool aspect have fostered a mature forest of tall, well-formed trees, particularly Liriodendron tulipifera, Fraxinus americana, Fagus grandifolia, and Carya cordiformis. Herb cover is locally lush, but somewhat limited by the abundance of surficial and subsurficial boulders. Update October 2004: a 100 cm DBH Fraxinus americana which was the largest canopy tree in the plot, was blown down by Hurricane Isabel in 2003. Much of the plot area is now covered with impenetrable tangles of wood from this tree.

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 Liriodendron tulipifera Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 56.5 cm ± 0.5 cm     1 stem(s) 74.5 cm ± 0.5 cm     1 stem(s) 2 Lindera benzoin Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     2 stem(s) 3 Fagus grandifolia Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 37.5 cm ± 2.5 cm     1 stem(s) 50.5 cm ± 0.5 cm     1 stem(s) 4 Erigenia bulbosa Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   -all-   37.5 % 7       -none- 5 Fraxinus americana Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 45.5 cm ± 0.5 cm     1 stem(s) 65.5 cm ± 0.5 cm     1 stem(s) 100.5 cm ± 0.5 cm     1 stem(s) 6 Asimina triloba Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   -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) 12.5 cm ± 2.5 cm     1 stem(s) 7 Acer saccharum Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 17.5 cm ± 2.5 cm     1 stem(s) 22.5 cm ± 2.5 cm     1 stem(s) 8 Claytonia virginica Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   -all-   7.5 % 5       -none- 9 Asarum canadense Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   -all-   7.5 % 5       -none- 10 Caulophyllum thalictroides Caulophyllum thalictroides **   Caulophyllum thalictroides **   Caulophyllum thalictroides **   Caulophyllum thalictroides **   Caulophyllum thalictroides **   Caulophyllum thalictroides **   Caulophyllum thalictroides **   Caulophyllum thalictroides **   -all-   7.5 % 5       -none- 11 Carya cordiformis Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   Carya cordiformis **   -all-   7.5 % 5       DBH DBH err Ht. Ht. Err # 69.5 cm ± 0.5 cm     1 stem(s) 12 Homalosorus pycnocarpos Homalosorus pycnocarpos **   Homalosorus pycnocarpos **   Homalosorus pycnocarpos **   Homalosorus pycnocarpos **   Homalosorus pycnocarpos **   Homalosorus pycnocarpos **   Homalosorus pycnocarpos **   Homalosorus pycnocarpos **   -all-   7.5 % 5       -none- 13 Staphylea trifolia Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   -all-   7.5 % 5       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     5 stem(s) 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-   7.5 % 5       DBH DBH err Ht. Ht. Err # 12.5 cm ± 2.5 cm     1 stem(s) 15 Deparia acrostichoides Deparia acrostichoides **   Deparia acrostichoides **   Deparia acrostichoides **   Deparia acrostichoides **   Deparia acrostichoides **   Deparia acrostichoides **   Deparia acrostichoides **   Deparia acrostichoides **   -all-   3.5 % 4       -none- 16 Dicentra canadensis Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   Dicentra canadensis **   -all-   3.5 % 4       -none- 17 Trillium sessile Trillium sessile **   Trillium sessile **   Trillium sessile **   Trillium sessile **   Trillium sessile **   Trillium sessile **   Trillium sessile **   Trillium sessile **   -all-   1.5 % 3       -none- 18 Impatiens pallida Impatiens pallida **   Impatiens pallida **   Impatiens pallida **   Impatiens pallida **   Impatiens pallida **   Impatiens pallida **   Impatiens pallida **   Impatiens pallida **   -all-   1.5 % 3       -none- 19 Cardamine concatenata Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   -all-   1.5 % 3       -none- 20 Polystichum acrostichoides Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   Polystichum acrostichoides **   -all-   1.5 % 3       -none- 21 Veronica hederifolia Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   Veronica hederifolia **   -all-   0.505 % 2       -none- 22 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-   0.505 % 2       -none- 23 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- 24 Cystopteris protrusa Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   Cystopteris protrusa **   -all-   0.505 % 2       -none- 25 Sanicula odorata Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   -all-   0.505 % 2       -none- 26 Laportea canadensis Laportea canadensis **   Laportea canadensis **   Laportea canadensis **   Laportea canadensis **   Laportea canadensis **   Laportea canadensis **   Laportea canadensis **   Laportea canadensis **   -all-   0.505 % 2       -none- 27 Dryopteris marginalis Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   Dryopteris marginalis **   -all-   0.505 % 2       -none- 28 Ulmus rubra Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   -all-   0.505 % 2       -none- 29 Carex careyana Carex careyana **   Carex careyana **   Carex careyana **   Carex careyana **   Carex careyana **   Carex careyana **   Carex careyana **   Carex careyana **   -all-   0.505 % 2       -none- 30 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- 31 Menispermum canadense Menispermum canadense **   Menispermum canadense **   Menispermum canadense **   Menispermum canadense **   Menispermum canadense **   Menispermum canadense **   Menispermum canadense **   Menispermum canadense **   -all-   0.505 % 2       -none- 32 Osmorhiza claytonii Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   -all-   0.505 % 2       -none- 33 Dryopteris intermedia Dryopteris intermedia **   Dryopteris intermedia **   Dryopteris intermedia **   Dryopteris intermedia **   Dryopteris intermedia **   Dryopteris intermedia **   Dryopteris intermedia **   Dryopteris intermedia **   -all-   0.505 % 2       -none- 34 Hydrophyllum canadense Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   -all-   0.505 % 2       -none- 35 Solidago flexicaulis Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   -all-   0.505 % 2       -none- 36 Actaea racemosa Actaea racemosa **   Actaea racemosa **   Actaea racemosa **   Actaea racemosa **   Actaea racemosa **   Actaea racemosa **   Actaea racemosa **   Actaea racemosa **   -all-   0.505 % 2       -none- 37 Galium aparine Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   -all-   0.505 % 2       -none- 38 Alliaria petiolata Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   -all-   0.505 % 2       -none- 39 Arisaema triphyllum Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   -all-   0.505 % 2       -none- 40 Viola pubescens Viola pubescens **   Viola pubescens **   Viola pubescens **   Viola pubescens **   Viola pubescens **   Viola pubescens **   Viola pubescens **   Viola pubescens **   -all-   0.505 % 2       -none- 41 Ulmus americana Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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