085-JAMR-0002
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:14308-{42C4A2C5-5B39-43FB-BEA6-2AA0F9B0C23B} » Citing info
Plot ID Fields:
Author Plot Code	085-JAMR-0002
Author Observation Code	085-JAMR-0002
Location Fields:	MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy	250 m
Confidentiality Status	100 km radius (nearest degree)
Latitude	37 º
Longitude	-77 º
State or Province	Virginia
Named Places	county: Henrico region|state|province: Virginia
Layout Fields:
DSG Polygon	10 x 10 m
Area	100 m²
Permanence	not permanent
Environment Fields:
Elevation	1 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
Soil Taxon	HYDRAQUENTS
Methods Fields:
Observation Start Date	05-Oct-2000
Observation End Date	05-Oct-2000
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	3 m
Field Cover	95 %
Misc Fields:
Observation Narrative	Surprisingly diverse and distinctly homogeneous marsh between tidal channel and stunted tidal hardwood swamp forest containing Acer rubrum, Nyssa biflora and Alnus serrulata. Biomass of annuals -- chiefly Impatiens capensis and Bidens spp. -- is especially impressive and obscures cover of already senescent graminoid culms, particularly Typha angustifolia and Acorus calamus, the latter of which may be more abundant than it appears. Early senescence of Polygonum sagittatum and P. arifolium confound the estimation of cover. A slight but pronounced elevation gradient runs from the channel inland, and the higher surface may explain the profusion of Bidens coronata, P. sagittatum, and Impatiens around corner 4. Given elevated position above the channel, this site may not flood entirely with every tidal cycle. Low, more open spot (2-3 sq. m) near corner 2 supports Pontederia cordata, Echinochloa walteri, and most of the Amaranthus cannabinus and Polygonum punctatum. Very thick rhizome mat suggests that Typha angustifolia and other rhizomatous perennial graminoids are not recent invaders of this stand.

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 Impatiens capensis Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   -all-   37.5 % 7       -none- 2 Bidens laevis Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   Bidens laevis **   -all-   17.5 % 6       -none- 3 Typha angustifolia Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   Typha angustifolia **   -all-   17.5 % 6       -none- 4 Peltandra virginica Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   Peltandra virginica **   -all-   7.5 % 5       -none- 5 Persicaria sagittata Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   -all-   7.5 % 5       -none- 6 Persicaria arifolia Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   Persicaria arifolia **   -all-   3.5 % 4       -none- 7 Bidens trichosperma Bidens trichosperma **   Bidens trichosperma **   Bidens trichosperma **   Bidens trichosperma **   Bidens trichosperma **   Bidens trichosperma **   Bidens trichosperma **   Bidens trichosperma **   -all-   3.5 % 4       -none- 8 Boehmeria cylindrica Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   -all-   3.5 % 4       -none- 9 Zizaniopsis miliacea Zizaniopsis miliacea **   Zizaniopsis miliacea **   Zizaniopsis miliacea **   Zizaniopsis miliacea **   Zizaniopsis miliacea **   Zizaniopsis miliacea **   Zizaniopsis miliacea **   Zizaniopsis miliacea **   -all-   3.5 % 4       -none- 10 Zizania aquatica var. aquatica Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   Zizania aquatica var. aquatica **   -all-   1.5 % 3       -none- 11 Acorus calamus Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   Acorus calamus **   -all-   1.5 % 3       -none- 12 Kosteletzkya pentacarpos Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   Kosteletzkya pentacarpos **   -all-   1.5 % 3       -none- 13 Asclepias incarnata var. pulchra Asclepias incarnata var. pulchra **   Asclepias incarnata var. pulchra **   Asclepias incarnata var. pulchra **   Asclepias incarnata var. pulchra **   Asclepias incarnata var. pulchra **   Asclepias incarnata var. pulchra **   Asclepias incarnata var. pulchra **   Asclepias incarnata var. pulchra **   -all-   1.5 % 3       -none- 14 Eleocharis palustris Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   Eleocharis palustris **   -all-   1.5 % 3       -none- 15 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-   0.505 % 2       -none- 16 Sagittaria latifolia Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   Sagittaria latifolia **   -all-   0.505 % 2       -none- 17 Bolboschoenus novae-angliae Bolboschoenus novae-angliae **   Bolboschoenus novae-angliae **   Bolboschoenus novae-angliae **   Bolboschoenus novae-angliae **   Bolboschoenus novae-angliae **   Bolboschoenus novae-angliae **   Bolboschoenus novae-angliae **   Bolboschoenus novae-angliae **   -all-   0.505 % 2       -none- 18 Symphyotrichum novi-belgii Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   Symphyotrichum novi-belgii **   -all-   0.505 % 2       -none- 19 Leersia oryzoides Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   Leersia oryzoides **   -all-   0.505 % 2       -none- 20 Murdannia keisak Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   Murdannia keisak **   -all-   0.505 % 2       -none- 21 Cornus amomum Cornus amomum **   Cornus amomum **   Cornus amomum **   Cornus amomum **   Cornus amomum **   Cornus amomum **   Cornus amomum **   Cornus amomum **   -all-   0.505 % 2       -none- 22 Echinochloa walteri Echinochloa walteri **   Echinochloa walteri **   Echinochloa walteri **   Echinochloa walteri **   Echinochloa walteri **   Echinochloa walteri **   Echinochloa walteri **   Echinochloa walteri **   -all-   0.505 % 2       -none- 23 Persicaria punctata Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   Persicaria punctata **   -all-   0.505 % 2       -none- 24 Cicuta maculata var. maculata Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   Cicuta maculata var. maculata **   -all-   0.505 % 2       -none- 25 Amaranthus cannabinus Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   Amaranthus cannabinus **   -all-   0.505 % 2       -none- 26 Hibiscus moscheutos Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   Hibiscus moscheutos **   -all-   0.505 % 2       -none- 27 Cuscuta gronovii Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   Cuscuta gronovii **   -all-   0.05 % 1       -none- 28 Sparganium americanum Sparganium americanum **   Sparganium americanum **   Sparganium americanum **   Sparganium americanum **   Sparganium americanum **   Sparganium americanum **   Sparganium americanum **   Sparganium americanum **   -all-   0.05 % 1       -none-
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Stratum Definitions:
Sorry, no Stratum Definitions found.
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