085-RIVB-0020
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:15397-{83ADDEF5-1627-4342-AF16-FE103D88F1F7} » Citing info
Plot ID Fields:
Author Plot Code	085-RIVB-0020
Author Observation Code	085-RIVB-0020
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	5 x 20 m
Area	100 m²
Permanence	not permanent
Environment Fields:
Elevation	48 m
Slope Aspect	(n/a, flat) º
Slope Gradient	0 º
Topographic Position	plain/level/bottom
Landform	alluvial flat/alluvial terrace/floodplain
Hydrologic Regime	non-tidal - temporarily flooded
Soil Moisture Regime	subhygric
Soil Drainage	somewhat poorly drained
Methods Fields:
Observation Start Date	25-Aug-2004
Observation End Date	25-Aug-2004
Project	Virginia Heritage
Cover Method	Carolina Vegetation Survey
Stratum Method	No Strata
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
Plot Quality Fields:
Plot Validation Level	(2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields:
Field Height	7 m
Field Cover	40 %
Misc Fields:
Observation Narrative	The plot is representative of a large riverside cobble bar complex overwhelmingly dominated by Justicia americana. This cobbley flats forming the bar may have been enlarged or entirely created by construction of a gas pipeline right-of-way across the river. Nevertheless, this stand is a very large and representative example of the water-willow depositional bar community type.

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 Justicia americana Justicia americana **   Justicia americana **   Justicia americana **   Justicia americana **   Justicia americana **   Justicia americana **   Justicia americana **   Justicia americana **   -all-   37.5 % 7       -none- 2 Cyperus esculentus var. leptostachyus Cyperus esculentus var. leptostachyus **   Cyperus esculentus var. leptostachyus **   Cyperus esculentus var. leptostachyus **   Cyperus esculentus var. leptostachyus **   Cyperus esculentus var. leptostachyus **   Cyperus esculentus var. leptostachyus **   Cyperus esculentus var. leptostachyus **   Cyperus esculentus var. leptostachyus **   -all-   3.5 % 4       -none- 3 Schoenoplectus pungens var. pungens Schoenoplectus pungens var. pungens **   Schoenoplectus pungens var. pungens **   Schoenoplectus pungens var. pungens **   Schoenoplectus pungens var. pungens **   Schoenoplectus pungens var. pungens **   Schoenoplectus pungens var. pungens **   Schoenoplectus pungens var. pungens **   Schoenoplectus pungens var. pungens **   -all-   1.5 % 3       -none- 4 Cyperus strigosus Cyperus strigosus **   Cyperus strigosus **   Cyperus strigosus **   Cyperus strigosus **   Cyperus strigosus **   Cyperus strigosus **   Cyperus strigosus **   Cyperus strigosus **   -all-   0.505 % 2       -none- 5 Cyperus squarrosus Cyperus squarrosus **   Cyperus squarrosus **   Cyperus squarrosus **   Cyperus squarrosus **   Cyperus squarrosus **   Cyperus squarrosus **   Cyperus squarrosus **   Cyperus squarrosus **   -all-   0.505 % 2       -none- 6 Lindernia dubia var. dubia Lindernia dubia var. dubia **   Lindernia dubia var. dubia **   Lindernia dubia var. dubia **   Lindernia dubia var. dubia **   Lindernia dubia var. dubia **   Lindernia dubia var. dubia **   Lindernia dubia var. dubia **   Lindernia dubia var. dubia **   -all-   0.505 % 2       -none- 7 Leersia oryzoides Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   -all-   0.505 % 2       -none- 8 Boehmeria cylindrica Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   -all-   0.05 % 1       -none- 9 Phyla lanceolata Phyla lanceolata **   Phyla lanceolata **   Phyla lanceolata **   Phyla lanceolata **   Phyla lanceolata **   Phyla lanceolata **   Phyla lanceolata **   Phyla lanceolata **   -all-   0.05 % 1       -none- 10 Euphorbia humistrata Euphorbia humistrata **   Euphorbia humistrata **   Euphorbia humistrata **   Euphorbia humistrata **   Euphorbia humistrata **   Euphorbia humistrata **   Euphorbia humistrata **   Euphorbia humistrata **   -all-   0.05 % 1       -none- 11 Ludwigia palustris Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   -all-   0.05 % 1       -none-
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Stratum Definitions:
Sorry, no Stratum Definitions found.
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