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085-GFNP-0003
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:13639-{1C1EE593-25BD-4BAB-874A-3689705A68F3}
» Citing info
Plot ID Fields: 
Author Plot Code ? 085-GFNP-0003
Author Observation Code ? 085-GFNP-0003
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 ? 10 x 40 m
Area ? 400
Permanence ? not permanent
Environment Fields: 
Elevation ? 47 m
Slope Aspect ? (n/a, flat) º
Slope Gradient ? 1 º
Topographic Position ? plain/level/bottom
Landform ? alluvial flat/alluvial terrace/floodplain
Hydrologic Regime ? non-tidal - saturated
Soil Moisture Regime ? hygric
Soil Drainage ? poorly drained
Methods Fields: 
Observation Start Date ? 14-May-2003
Observation End Date ? 14-May-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 ? 400
Plot Quality Fields: 
Plot Validation Level ? (2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields: 
Tree Height ? 32 m
Shrub Height ? 5 m
Field Height ? 1 m
Tree Cover ? 80 %
Shrub Cover ? 60 %
Field Cover ? 90 %
Nonvascular Cover ? 0.5 %
Misc Fields: 
Observation Narrative ? Plot was positioned in a linear zone along the edge of small stream floodplain where abundant groundwater discharge maintains permanently saturated conditions. Microtopography is characterized by irregular hummock and hollows, the latter with deep mucky soils. The vegetation is a somewhat open forest with relatively small trees, a moderately dense shrub layer, and a very dense ground layer dominated early in the growing season by Symplocarpus foetidus. The late-season aspect is dominated by Saururus cernuus and Impatiens capensis. Mean groundwater pH (4 samples) = 5.78. Mean groundwater temperature (deg. C, 4 samples) = 13.00.
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 Symplocarpus foetidus Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   -all-  
62.5 %
8       -none-
2 Acer rubrum Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   -all-  
62.5 %
8      
DBH ?DBH err ?Ht. ?Ht. Err ?# ?
7.5 cm ± 2.5 cm     1 stem(s)
12.5 cm ± 2.5 cm     3 stem(s)
17.5 cm ± 2.5 cm     3 stem(s)
22.5 cm ± 2.5 cm     1 stem(s)
27.5 cm ± 2.5 cm     2 stem(s)
stem stem stem stem stem stem stem stem stem stem
3 Asimina triloba Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   -all-  
37.5 %
7      
DBH ?DBH err ?Ht. ?Ht. Err ?# ?
3.75 cm ± 1.25 cm     7 stem(s)
stem stem stem stem stem stem stem
4 Platanus occidentalis Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   -all-  
17.5 %
6      
DBH ?DBH err ?Ht. ?Ht. Err ?# ?
37.5 cm ± 2.5 cm     1 stem(s)
stem
5 Lindera benzoin Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   -all-  
17.5 %
6       -none-
6 Fraxinus pennsylvanica Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   -all-  
17.5 %
6      
DBH ?DBH err ?Ht. ?Ht. Err ?# ?
27.5 cm ± 2.5 cm     1 stem(s)
37.5 cm ± 2.5 cm     1 stem(s)
stem stem
7 Liriodendron tulipifera Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   Liriodendron tulipifera **   -all-  
7.5 %
5      
DBH ?DBH err ?Ht. ?Ht. Err ?# ?
7.5 cm ± 2.5 cm     1 stem(s)
37.5 cm ± 2.5 cm     1 stem(s)
stem stem
8 Fagus grandifolia Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   -all-  
7.5 %
5      
DBH ?DBH err ?Ht. ?Ht. Err ?# ?
3.75 cm ± 1.25 cm     1 stem(s)
7.5 cm ± 2.5 cm     2 stem(s)
stem stem stem
9 Carpinus caroliniana Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   -all-  
7.5 %
5      
DBH ?DBH err ?Ht. ?Ht. Err ?# ?
7.5 cm ± 2.5 cm     2 stem(s)
stem stem
10 Ulmus americana Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   -all-  
7.5 %
5      
DBH ?DBH err ?Ht. ?Ht. Err ?# ?
37.5 cm ± 2.5 cm     1 stem(s)
stem
11 Ilex verticillata Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   -all-  
3.5 %
4       -none-
12 Saururus cernuus Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   Saururus cernuus **   -all-  
1.5 %
3       -none-
13 Viburnum dentatum var. dentatum Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   Viburnum dentatum var. dentatum **   -all-  
1.5 %
3       -none-
14 Valeriana pauciflora Valeriana pauciflora **   Valeriana pauciflora **   Valeriana pauciflora **   Valeriana pauciflora **   Valeriana pauciflora **   Valeriana pauciflora **   Valeriana pauciflora **   Valeriana pauciflora **   -all-  
0.505 %
2       -none-
15 Smilax rotundifolia Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   -all-  
0.505 %
2       -none-
16 Solidago flexicaulis Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   Solidago flexicaulis **   -all-  
0.505 %
2       -none-
17 Cinna arundinacea Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   -all-  
0.505 %
2       -none-
18 Circaea canadensis ssp. canadensis Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   -all-  
0.505 %
2       -none-
19 Poa trivialis Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   Poa trivialis **   -all-  
0.505 %
2       -none-
20 Podophyllum peltatum Podophyllum peltatum **   Podophyllum peltatum **   Podophyllum peltatum **   Podophyllum peltatum **   Podophyllum peltatum **   Podophyllum peltatum **   Podophyllum peltatum **   Podophyllum peltatum **   -all-  
0.505 %
2       -none-
21 Sambucus canadensis Sambucus canadensis **   Sambucus canadensis **   Sambucus canadensis **   Sambucus canadensis **   Sambucus canadensis **   Sambucus canadensis **   Sambucus canadensis **   Sambucus canadensis **   -all-  
0.505 %
2       -none-
22 Boehmeria cylindrica Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   Boehmeria cylindrica **   -all-  
0.505 %
2       -none-
23 Stellaria pubera Stellaria pubera **   Stellaria pubera **   Stellaria pubera **   Stellaria pubera **   Stellaria pubera **   Stellaria pubera **   Stellaria pubera **   Stellaria pubera **   -all-  
0.505 %
2       -none-
24 Persicaria longiseta Persicaria longiseta **   Persicaria longiseta **   Persicaria longiseta **   Persicaria longiseta **   Persicaria longiseta **   Persicaria longiseta **   Persicaria longiseta **   Persicaria longiseta **   -all-  
0.505 %
2       -none-
25 Poa autumnalis Poa autumnalis **   Poa autumnalis **   Poa autumnalis **   Poa autumnalis **   Poa autumnalis **   Poa autumnalis **   Poa autumnalis **   Poa autumnalis **   -all-  
0.505 %
2       -none-
26 Alliaria petiolata Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   -all-  
0.505 %
2       -none-
27 Allium vineale Allium vineale **   Allium vineale **   Allium vineale **   Allium vineale **   Allium vineale **   Allium vineale **   Allium vineale **   Allium vineale **   -all-  
0.505 %
2       -none-
28 Arisaema triphyllum Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   -all-  
0.505 %
2       -none-
29 Geum canadense Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   -all-  
0.505 %
2       -none-
30 Erythronium americanum ssp. americanum Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   -all-  
0.505 %
2       -none-
31 Claytonia virginica Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   -all-  
0.505 %
2       -none-
32 Impatiens capensis Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   -all-  
0.505 %
2       -none-
33 Viburnum prunifolium Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   -all-  
0.505 %
2       -none-
34 Galium concinnum Galium concinnum **   Galium concinnum **   Galium concinnum **   Galium concinnum **   Galium concinnum **   Galium concinnum **   Galium concinnum **   Galium concinnum **   -all-  
0.505 %
2       -none-
35 Lonicera japonica Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   -all-  
0.505 %
2       -none-
36 Sanicula canadensis Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   Sanicula canadensis **   -all-  
0.505 %
2       -none-
37 Toxicodendron radicans Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   -all-  
0.505 %
2       -none-
38 Galium aparine Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   -all-  
0.505 %
2       -none-
39 Parthenocissus quinquefolia Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   -all-  
0.505 %
2       -none-
40 Osmorhiza longistylis Osmorhiza longistylis **   Osmorhiza longistylis **   Osmorhiza longistylis **   Osmorhiza longistylis **   Osmorhiza longistylis **   Osmorhiza longistylis **   Osmorhiza longistylis **   Osmorhiza longistylis **   -all-  
0.505 %
2       -none-
41 Packera aurea Packera aurea **   Packera aurea **   Packera aurea **   Packera aurea **   Packera aurea **   Packera aurea **   Packera aurea **   Packera aurea **   -all-  
0.505 %
2       -none-
42 Carex laxiculmis var. laxiculmis Carex laxiculmis var. laxiculmis **   Carex laxiculmis var. laxiculmis **   Carex laxiculmis var. laxiculmis **   Carex laxiculmis var. laxiculmis **   Carex laxiculmis var. laxiculmis **   Carex laxiculmis var. laxiculmis **   Carex laxiculmis var. laxiculmis **   Carex laxiculmis var. laxiculmis **   -all-  
0.505 %
2       -none-
43 Cardamine concatenata Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   Cardamine concatenata **   -all-  
0.505 %
2       -none-
44 Ranunculus recurvatus var. recurvatus Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   Ranunculus recurvatus var. recurvatus **   -all-  
0.505 %
2       -none-
45 Cardamine pensylvanica Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   Cardamine pensylvanica **   -all-  
0.05 %
1       -none-
46 Oxalis stricta Oxalis stricta **   Oxalis stricta **   Oxalis stricta **   Oxalis stricta **   Oxalis stricta **   Oxalis stricta **   Oxalis stricta **   Oxalis stricta **   -all-  
0.05 %
1       -none-
47 Festuca subverticillata Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   -all-  
0.05 %
1       -none-
48 Cryptotaenia canadensis Cryptotaenia canadensis **   Cryptotaenia canadensis **   Cryptotaenia canadensis **   Cryptotaenia canadensis **   Cryptotaenia canadensis **   Cryptotaenia canadensis **   Cryptotaenia canadensis **   Cryptotaenia canadensis **   -all-  
0.05 %
1       -none-
49 Erigenia bulbosa Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   Erigenia bulbosa **   -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 ?
Riley, Erin Field assistant
Johnson, Catherine Field assistant
Fleming, Gary Author
Community Classification:
More Classification Start Date ? Community AssignmentsContributors
Details 01-Oct-2004
Community Concept ?Class Fit ?Class Confidence ?Community Authority Reference ?Typal ?
Acer rubrum - Fraxinus (pennsylvanica, americana) / Lindera benzoin / Symplocarpus foetidus Swamp Forest 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       6.67999982833862 %   60.7599983215332 % 35.2400016784668 % 4 %   5.40000009536743 10.0200004577637 71.120002746582 % 0-2 cm leaf litter on hummocks only A-horizon in most of plot is a silty muck with mica flakes


Disturbance Data:
Disturbance Type ?Disturbance Intensity ?Disturbance Comment ?
unknown   Herbivory damage on Sambucus canadensis. Park road just downstream does not appear to impede or influence drainage.


User Defined Values
No User Defined Data for this plot