085-GFNP-0032
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:13668-{5643488C-758B-41B0-843C-FA24B774CBDD} » Citing info
Plot ID Fields:
Author Plot Code	085-GFNP-0032
Author Observation Code	085-GFNP-0032
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	8 x 12.5 m
Area	100 m²
Permanence	not permanent
Environment Fields:
Elevation	22 m
Slope Aspect	30 º
Slope Gradient	35 º
Topographic Position	lower slope
Landform	bedrock outcrop
Hydrologic Regime	terrestrial (upland)
Soil Moisture Regime	xeric
Soil Drainage	rapidly drained
Methods Fields:
Observation Start Date	16-Sep-2003
Observation End Date	16-Sep-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	100 m²
Plot Quality Fields:
Plot Validation Level	(2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields:
Shrub Height	2 m
Field Height	8 m
Shrub Cover	8 %
Field Cover	9 %
Nonvascular Cover	90 %
Misc Fields:
Observation Narrative	Plot captures a rather sparsely vegetated, periodically flood-scoured rock outcrop along, and about 3-4 meters in elevation above, the Potomac River. Dominant non-vascular plants are Grimmia laevigata and Xanthoparmelia cf. conspersa. Flooding probably occurs at the low end of a 1 to 7-year return interval. Most of the outcrop surfaces are steeply sloping and microtopography is very irregular.

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 Ionactis linariifolia Ionactis linariifolia **   Ionactis linariifolia **   Ionactis linariifolia **   Ionactis linariifolia **   Ionactis linariifolia **   Ionactis linariifolia **   Ionactis linariifolia **   Ionactis linariifolia **   -all-   3.5 % 4       -none- 2 Ulmus americana Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   -all-   1.5 % 3       -none- 3 Fraxinus americana Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 4 Schizachyrium scoparium var. scoparium Schizachyrium scoparium var. scoparium **   Schizachyrium scoparium var. scoparium **   Schizachyrium scoparium var. scoparium **   Schizachyrium scoparium var. scoparium **   Schizachyrium scoparium var. scoparium **   Schizachyrium scoparium var. scoparium **   Schizachyrium scoparium var. scoparium **   Schizachyrium scoparium var. scoparium **   -all-   1.5 % 3       -none- 5 Solidago racemosa Solidago racemosa **   Solidago racemosa **   Solidago racemosa **   Solidago racemosa **   Solidago racemosa **   Solidago racemosa **   Solidago racemosa **   Solidago racemosa **   -all-   1.5 % 3       -none- 6 Hypericum prolificum Hypericum prolificum **   Hypericum prolificum **   Hypericum prolificum **   Hypericum prolificum **   Hypericum prolificum **   Hypericum prolificum **   Hypericum prolificum **   Hypericum prolificum **   -all-   1.5 % 3       -none- 7 Acer rubrum Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   -all-   1.5 % 3       -none- 8 Andropogon gerardii Andropogon gerardii **   Andropogon gerardii **   Andropogon gerardii **   Andropogon gerardii **   Andropogon gerardii **   Andropogon gerardii **   Andropogon gerardii **   Andropogon gerardii **   -all-   1.5 % 3       -none- 9 Phlox subulata Phlox subulata **   Phlox subulata **   Phlox subulata **   Phlox subulata **   Phlox subulata **   Phlox subulata **   Phlox subulata **   Phlox subulata **   -all-   1.5 % 3       -none- 10 Toxicodendron radicans Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   -all-   1.5 % 3       -none- 11 Quercus montana Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   -all-   0.505 % 2       -none- 12 Rhododendron arborescens Rhododendron arborescens **   Rhododendron arborescens **   Rhododendron arborescens **   Rhododendron arborescens **   Rhododendron arborescens **   Rhododendron arborescens **   Rhododendron arborescens **   Rhododendron arborescens **   -all-   0.505 % 2       -none- 13 Desmodium perplexum Desmodium perplexum **   Desmodium perplexum **   Desmodium perplexum **   Desmodium perplexum **   Desmodium perplexum **   Desmodium perplexum **   Desmodium perplexum **   Desmodium perplexum **   -all-   0.505 % 2       -none- 14 Taraxacum officinale Taraxacum officinale **   Taraxacum officinale **   Taraxacum officinale **   Taraxacum officinale **   Taraxacum officinale **   Taraxacum officinale **   Taraxacum officinale **   Taraxacum officinale **   -all-   0.505 % 2       -none- 15 Boehmeria cylindrica Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   -all-   0.505 % 2       -none- 16 Allium cernuum Allium cernuum **   Allium cernuum **   Allium cernuum **   Allium cernuum **   Allium cernuum **   Allium cernuum **   Allium cernuum **   Allium cernuum **   -all-   0.505 % 2       -none- 17 Arabidopsis lyrata ssp. lyrata Arabidopsis lyrata ssp. lyrata **   Arabidopsis lyrata ssp. lyrata **   Arabidopsis lyrata ssp. lyrata **   Arabidopsis lyrata ssp. lyrata **   Arabidopsis lyrata ssp. lyrata **   Arabidopsis lyrata ssp. lyrata **   Arabidopsis lyrata ssp. lyrata **   Arabidopsis lyrata ssp. lyrata **   -all-   0.505 % 2       -none- 18 Veronicastrum virginicum Veronicastrum virginicum **   Veronicastrum virginicum **   Veronicastrum virginicum **   Veronicastrum virginicum **   Veronicastrum virginicum **   Veronicastrum virginicum **   Veronicastrum virginicum **   Veronicastrum virginicum **   -all-   0.505 % 2       -none- 19 Amelanchier spicata Amelanchier spicata **   Amelanchier spicata **   Amelanchier spicata **   Amelanchier spicata **   Amelanchier spicata **   Amelanchier spicata **   Amelanchier spicata **   Amelanchier spicata **   -all-   0.505 % 2       -none- 20 Vaccinium pallidum Vaccinium pallidum **   Vaccinium pallidum **   Vaccinium pallidum **   Vaccinium pallidum **   Vaccinium pallidum **   Vaccinium pallidum **   Vaccinium pallidum **   Vaccinium pallidum **   -all-   0.505 % 2       -none- 21 Microstegium vimineum Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   Microstegium vimineum **   -all-   0.505 % 2       -none- 22 Micranthes virginiensis Micranthes virginiensis **   Micranthes virginiensis **   Micranthes virginiensis **   Micranthes virginiensis **   Micranthes virginiensis **   Micranthes virginiensis **   Micranthes virginiensis **   Micranthes virginiensis **   -all-   0.505 % 2       -none- 23 Panicum dichotomiflorum var. dichotomiflorum Panicum dichotomiflorum var. dichotomiflorum **   Panicum dichotomiflorum var. dichotomiflorum **   Panicum dichotomiflorum var. dichotomiflorum **   Panicum dichotomiflorum var. dichotomiflorum **   Panicum dichotomiflorum var. dichotomiflorum **   Panicum dichotomiflorum var. dichotomiflorum **   Panicum dichotomiflorum var. dichotomiflorum **   Panicum dichotomiflorum var. dichotomiflorum **   -all-   0.505 % 2       -none- 24 Aquilegia canadensis Aquilegia canadensis **   Aquilegia canadensis **   Aquilegia canadensis **   Aquilegia canadensis **   Aquilegia canadensis **   Aquilegia canadensis **   Aquilegia canadensis **   Aquilegia canadensis **   -all-   0.505 % 2       -none- 25 Polypodium virginianum Polypodium virginianum **   Polypodium virginianum **   Polypodium virginianum **   Polypodium virginianum **   Polypodium virginianum **   Polypodium virginianum **   Polypodium virginianum **   Polypodium virginianum **   -all-   0.505 % 2       -none- 26 Asplenium platyneuron Asplenium platyneuron **   Asplenium platyneuron **   Asplenium platyneuron **   Asplenium platyneuron **   Asplenium platyneuron **   Asplenium platyneuron **   Asplenium platyneuron **   Asplenium platyneuron **   -all-   0.505 % 2       -none- 27 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-   0.505 % 2       -none- 28 Dichanthelium acuminatum var. acuminatum Dichanthelium acuminatum var. acuminatum **   Dichanthelium acuminatum var. acuminatum **   Dichanthelium acuminatum var. acuminatum **   Dichanthelium acuminatum var. acuminatum **   Dichanthelium acuminatum var. acuminatum **   Dichanthelium acuminatum var. acuminatum **   Dichanthelium acuminatum var. acuminatum **   Dichanthelium acuminatum var. acuminatum **   -all-   0.505 % 2       -none- 29 Eupatorium serotinum Eupatorium serotinum **   Eupatorium serotinum **   Eupatorium serotinum **   Eupatorium serotinum **   Eupatorium serotinum **   Eupatorium serotinum **   Eupatorium serotinum **   Eupatorium serotinum **   -all-   0.05 % 1       -none- 30 Eclipta prostrata Eclipta prostrata **   Eclipta prostrata **   Eclipta prostrata **   Eclipta prostrata **   Eclipta prostrata **   Eclipta prostrata **   Eclipta prostrata **   Eclipta prostrata **   -all-   0.05 % 1       -none- 31 Artemisia annua Artemisia annua **   Artemisia annua **   Artemisia annua **   Artemisia annua **   Artemisia annua **   Artemisia annua **   Artemisia annua **   Artemisia annua **   -all-   0.05 % 1       -none- 32 Juncus tenuis Juncus tenuis **   Juncus tenuis **   Juncus tenuis **   Juncus tenuis **   Juncus tenuis **   Juncus tenuis **   Juncus tenuis **   Juncus tenuis **   -all-   0.05 % 1       -none- 33 Ailanthus altissima Ailanthus altissima **   Ailanthus altissima **   Ailanthus altissima **   Ailanthus altissima **   Ailanthus altissima **   Ailanthus altissima **   Ailanthus altissima **   Ailanthus altissima **   -all-   0.05 % 1       -none- 34 Viola sororia Viola sororia **   Viola sororia **   Viola sororia **   Viola sororia **   Viola sororia **   Viola sororia **   Viola sororia **   Viola sororia **   -all-   0.05 % 1       -none- 35 Echinochloa muricata Echinochloa muricata **   Echinochloa muricata **   Echinochloa muricata **   Echinochloa muricata **   Echinochloa muricata **   Echinochloa muricata **   Echinochloa muricata **   Echinochloa muricata **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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