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085-PAMR-0009P
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:15051-{AFEEF099-39E2-44E9-A37A-F43295706B2B}
» Citing info
Plot ID Fields: 
Author Plot Code ? 085-PAMR-0009P
Author Observation Code ? 085-PAMR-0009P
Location Fields: MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy ? 25 m
Confidentiality Status ? 100 km radius (nearest degree)
Latitude ? 38 º
Longitude ? -77 º
State or Province ? Virginia
Named Places
county: King William
region|state|province: Virginia
Layout Fields: 
DSG Polygon ? 4 x 25 m
Area ? 100
Permanence ? not permanent
Environment Fields: 
Elevation ? 0 m
Slope Aspect ? (n/a, flat) º
Topographic Position ? plain/level/bottom
Landform ? tidal flat
Hydrologic Regime ? tidal - regularly flooded
Soil Moisture Regime ? hydric
Soil Drainage ? very poorly drained
Water Salinity ? freshwater
Methods Fields: 
Observation Start Date ? 09-Sep-1998
Observation End Date ? 09-Sep-1998
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 ? 1 m
Field Cover ? 85 %
Misc Fields: 
Observation Narrative ? An unusual, diverse, and heterogeneous community occurs along a narrow sand and gravel bar between the Pamunkey River and railroad tracks on the Pamunkey Indian Reservation. A linear plot layout was necessary to conform to the shape of the bar, but it was impossible to orient the plot so as both to exclude overhanging tree cover and to restrict sampling to vegetated bar surface. Like many such narrow bars on this freshwater section of the Pamunkey, chiefly where the shoreline grades abruptly to much steeper, non-alluvial upland slopes, Justicia americana is the dominant species, but the vegetation here appears considerably more diverse and heterogeneous than that of somewhat smaller bars observed from a distance elsewhere. This site supports several rare species, including Eriocaulon parkeri and Bacopa innominata. The plot was sampled as the tide was rising, and some taxa along the outer edge may have been missed. Plot permanently marked with PVC stakes.
Taxa occurring on this plot-observation
Change plant label:
Change Strata Shown:
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-  
62.5 %
8       -none-
2 Acorus calamus Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   -all-  
3.5 %
4       -none-
3 Cuscuta gronovii Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   -all-  
3.5 %
4       -none-
4 Pontederia cordata var. cordata Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   Pontederia cordata var. cordata **   -all-  
3.5 %
4       -none-
5 Eleocharis palustris Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   -all-  
1.5 %
3       -none-
6 Juncus acuminatus Juncus acuminatus **   Juncus acuminatus **   Juncus acuminatus **   Juncus acuminatus **   Juncus acuminatus **   Juncus acuminatus **   Juncus acuminatus **   Juncus acuminatus **   -all-  
1.5 %
3       -none-
7 Sagittaria subulata Sagittaria subulata **   Sagittaria subulata **   Sagittaria subulata **   Sagittaria subulata **   Sagittaria subulata **   Sagittaria subulata **   Sagittaria subulata **   Sagittaria subulata **   -all-  
1.5 %
3       -none-
8 Persicaria punctata Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   -all-  
1.5 %
3       -none-
9 Impatiens capensis Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   -all-  
0.505 %
2       -none-
10 Juncus scirpoides Juncus scirpoides **   Juncus scirpoides **   Juncus scirpoides **   Juncus scirpoides **   Juncus scirpoides **   Juncus scirpoides **   Juncus scirpoides **   Juncus scirpoides **   -all-  
0.505 %
2       -none-
11 Eriocaulon parkeri Eriocaulon parkeri **   Eriocaulon parkeri **   Eriocaulon parkeri **   Eriocaulon parkeri **   Eriocaulon parkeri **   Eriocaulon parkeri **   Eriocaulon parkeri **   Eriocaulon parkeri **   -all-  
0.505 %
2       -none-
12 Ludwigia palustris Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   Ludwigia palustris **   -all-  
0.505 %
2       -none-
13 forb sp. forb sp. **   forb sp. **   forb sp. **   forb sp. **   forb sp. **   forb sp. **   forb sp. **   forb sp. **   -all-  
0.505 %
2       -none-
14 Sacciolepis striata Sacciolepis striata **   Sacciolepis striata **   Sacciolepis striata **   Sacciolepis striata **   Sacciolepis striata **   Sacciolepis striata **   Sacciolepis striata **   Sacciolepis striata **   -all-  
0.505 %
2       -none-
15 Helenium autumnale Helenium autumnale **   Helenium autumnale **   Helenium autumnale **   Helenium autumnale **   Helenium autumnale **   Helenium autumnale **   Helenium autumnale **   Helenium autumnale **   -all-  
0.505 %
2       -none-
16 Juncus sp. Juncus sp. **   Juncus sp. **   Juncus sp. **   Juncus sp. **   Juncus sp. **   Juncus sp. **   Juncus sp. **   Juncus sp. **   -all-  
0.505 %
2       -none-
17 Murdannia keisak Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   -all-  
0.505 %
2       -none-
18 Cinna arundinacea Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   -all-  
0.505 %
2       -none-
19 Persicaria sagittata Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   -all-  
0.505 %
2       -none-
20 Amaranthus cannabinus Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   -all-  
0.05 %
1       -none-
21 Lobelia cardinalis Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   -all-  
0.05 %
1       -none-
22 Bacopa innominata Bacopa innominata **   Bacopa innominata **   Bacopa innominata **   Bacopa innominata **   Bacopa innominata **   Bacopa innominata **   Bacopa innominata **   Bacopa innominata **   -all-  
0.05 %
1       -none-
This table is SORTABLE. Click the headers to sort ascending and descending.

Stratum Definitions:
Sorry, no Stratum Definitions found.
This table is SORTABLE. Click the headers to sort ascending and descending.
Observation Contributors:
Party ?Role ?
Alstine, Nancy Field assistant
Coulling, Philip Author
Community Classification:
More Classification Start Date ? Community AssignmentsContributors
Details 01-Oct-2002
Community Concept ?Class Fit ?Class Confidence ?Community Authority Reference ?Typal ?
Justicia americana Riverbed Vegetation 4 High   no
No Class Contributors.
Details 19-Apr-2010
Community Concept ?Class Fit ?Class Confidence ?Community Authority Reference ?Typal ?
Justicia americana - Peltandra virginica Herbaceous Vegetation 5 High   no
No Class Contributors.


Soil Observations:
Soil Horizon ?Soil Depth Top ?Soil Depth Bottom ?Soil Color ?Soil Organic ?Soil Texture ?Soil Sand ?Soil Silt ?Soil Clay ?Soil Coarse ?Soil PH ?Exchange Capacity ?Base Saturation ?Soil Description ?
unknown       0.259999990463257 %           4.40000009536743 10.0699996948242 35 % 0 - 5 - undecomposed organic matter, with abundant coarse sediment 5 - 30 - gleyed, blue-gray, sandy clay interspersed with lenses of nearly pure clay 30 - coarser, siltier clay, with admixture of gray and less reduced (?) orange-brown mottles


Disturbance Data:
Disturbance Type ?Disturbance Intensity ?Disturbance Comment ?
unknown   gravel and other coarse sediment from adjacent railroad bed


User Defined Values
No User Defined Data for this plot