085-RAPR-0004
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:15375-{9AC8A150-6783-41AD-9051-911872A548CB} » Citing info
Plot ID Fields:
Author Plot Code	085-RAPR-0004
Author Observation Code	085-RAPR-0004
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: Westmoreland region|state|province: Virginia
Layout Fields:
DSG Polygon	10 x 10 m
Area	100 m²
Permanence	not permanent
Environment Fields:
Elevation	3 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	oligohaline
Methods Fields:
Observation Start Date	11-Sep-2001
Observation End Date	11-Sep-2001
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	90 %
Misc Fields:
Observation Narrative	This marsh contains an unusual mixture of species characteristic of oligohaline conditions (Typha angustifolia, Kosteletzkya virginica), taxa generally considered intolerant of much salinity (Impatiens capensis, Polygonum sagittatum), and species seldom encountered in tidal marshes (Onoclea sensibilis, Helenium autumnale). Diversity is unusually high for an oligohaline marsh, but linear patch of Schoenoplectus americanus and scattered culms of Spartina cynosuroides suggest conditions at least transitional to oligohaline. Plot located ca. 20 m from relatively small (300-400 sq. m) patch of Phragmites, which has been completely killed by aerial spraying. Scattered culms of Phragmites in the plot do not appear to be invasive and may represent the native haplotype. Water depth ca. 1-2 cm in local low points at 10:30 AM.

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 Typha angustifolia Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   -all-   37.5 % 7       -none- 2 Hibiscus moscheutos Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   -all-   17.5 % 6       -none- 3 Persicaria punctata Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   -all-   17.5 % 6       -none- 4 Onoclea sensibilis var. sensibilis Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   Onoclea sensibilis var. sensibilis **   -all-   7.5 % 5       -none- 5 Persicaria arifolia Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   -all-   7.5 % 5       -none- 6 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- 7 Leersia oryzoides Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   -all-   3.5 % 4       -none- 8 Peltandra virginica Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   -all-   3.5 % 4       -none- 9 Murdannia keisak Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   -all-   1.5 % 3       -none- 10 Impatiens capensis Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   -all-   0.505 % 2       -none- 11 Scirpus cyperinus Scirpus cyperinus **   Scirpus cyperinus **   Scirpus cyperinus **   Scirpus cyperinus **   Scirpus cyperinus **   Scirpus cyperinus **   Scirpus cyperinus **   Scirpus cyperinus **   -all-   0.505 % 2       -none- 12 Mikania scandens Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   Mikania scandens **   -all-   0.505 % 2       -none- 13 Phragmites australis Phragmites australis **   Phragmites australis **   Phragmites australis **   Phragmites australis **   Phragmites australis **   Phragmites australis **   Phragmites australis **   Phragmites australis **   -all-   0.505 % 2       -none- 14 Kosteletzkya pentacarpos Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   -all-   0.505 % 2       -none- 15 Galium tinctorium Galium tinctorium **   Galium tinctorium **   Galium tinctorium **   Galium tinctorium **   Galium tinctorium **   Galium tinctorium **   Galium tinctorium **   Galium tinctorium **   -all-   0.05 % 1       -none- 16 Spartina cynosuroides Spartina cynosuroides **   Spartina cynosuroides **   Spartina cynosuroides **   Spartina cynosuroides **   Spartina cynosuroides **   Spartina cynosuroides **   Spartina cynosuroides **   Spartina cynosuroides **   -all-   0.05 % 1       -none- 17 Lobelia cardinalis Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   Lobelia cardinalis **   -all-   0.05 % 1       -none- 18 Cuscuta gronovii Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   -all-   0.05 % 1       -none- 19 Persicaria sagittata Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   -all-   0.05 % 1       -none- 20 Eleocharis fallax Eleocharis fallax **   Eleocharis fallax **   Eleocharis fallax **   Eleocharis fallax **   Eleocharis fallax **   Eleocharis fallax **   Eleocharis fallax **   Eleocharis fallax **   -all-   0.05 % 1       -none- 21 Decodon verticillatus Decodon verticillatus **   Decodon verticillatus **   Decodon verticillatus **   Decodon verticillatus **   Decodon verticillatus **   Decodon verticillatus **   Decodon verticillatus **   Decodon verticillatus **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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