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085-BULL-0001
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:12806-{E1BF918A-2F51-4886-8FE7-EEBE87CEB1A0}
» Citing info
Plot ID Fields: 
Author Plot Code ? 085-BULL-0001
Author Observation Code ? 085-BULL-0001
Location Fields: MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy ? 100 m
Confidentiality Status ? 100 km radius (nearest degree)
Latitude ? 39 º
Longitude ? -78 º
State or Province ? Virginia
Named Places
county: Prince William
region|state|province: Virginia
Layout Fields: 
DSG Polygon ? 20 x 20 m
Area ? 400
Permanence ? not permanent
Environment Fields: 
Elevation ? 232 m
Slope Aspect ? (n/a, flat) º
Slope Gradient ? 1 º
Topographic Position ? plain/level/bottom
Landform ? seep/swale/non-alluvial bottom
Hydrologic Regime ? non-tidal - saturated
Soil Moisture Regime ? hygric
Soil Drainage ? poorly drained
Methods Fields: 
Observation Start Date ? 26-May-1998
Observation End Date ? 26-May-1998
Project ? Virginia Heritage
Cover Method ? Carolina Vegetation Survey
Stratum Method ? No Strata
Stem Size Limit ? 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 ? 30 m
Shrub Height ? 6 m
Field Height ? 1 m
Tree Cover ? 70 %
Shrub Cover ? 50 %
Field Cover ? 90 %
Nonvascular Cover ? 30 %
Misc Fields: 
Observation Narrative ? Plot located in forested swamp just north of the most upstream beaver meadow 40 m west of main channel of Catharpin Creek in Jackson Hollow, 0.6 mi ESE of White Rock Spring and 0.8 mi ENE of Signal Mountain summit. Not permanently marked. Rock types present: quartzite boulders. An absolutely beautiful example of forested seepage swamp vegetation, unfortunately highly threatened by the potential expansion of beaver clearings and meadows located just downstream. Toxicodendron vernix is impressively large and abundant here. This community's floristic composition features several more or less montane disjuncts (Glyceria melicaria, Isoetes valida, Veratrum viride, Maianthemum canadense, Anemone quinquefolia, Mitella diphylla) along with species more typical of low elevations in Virginia (Toxicodendron vernix, Woodwardia areolata, Carex seorsa). Water pH and temperature data collected 2005-03-09. Mean groundwater pH (5 samples) = 5.03. Mean groundwater temperature (deg. C, 5 samples) = 6.22.
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 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)
17.5 cm ± 2.5 cm     1 stem(s)
22.5 cm ± 2.5 cm     2 stem(s)
27.5 cm ± 2.5 cm     1 stem(s)
32.5 cm ± 2.5 cm     1 stem(s)
52.5 cm ± 0.5 cm     1 stem(s)
61.5 cm ± 0.5 cm     1 stem(s)
stem stem stem stem stem stem stem stem
2 Symplocarpus foetidus Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   Symplocarpus foetidus **   -all-  
37.5 %
7       -none-
3 Toxicodendron vernix Toxicodendron vernix **   Toxicodendron vernix **   Toxicodendron vernix **   Toxicodendron vernix **   Toxicodendron vernix **   Toxicodendron vernix **   Toxicodendron vernix **   Toxicodendron vernix **   -all-  
17.5 %
6      
DBH ?DBH err ?Ht. ?Ht. Err ?# ?
7.5 cm ± 2.5 cm     3 stem(s)
12.5 cm ± 2.5 cm     3 stem(s)
27.5 cm ± 2.5 cm     1 stem(s)
stem stem stem stem stem stem stem
4 Kalmia latifolia Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   -all-  
17.5 %
6      
DBH ?DBH err ?Ht. ?Ht. Err ?# ?
7.5 cm ± 2.5 cm     3 stem(s)
12.5 cm ± 2.5 cm     1 stem(s)
stem stem stem stem
5 Osmundastrum cinnamomeum var. cinnamomeum Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   -all-  
17.5 %
6       -none-
6 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 ?# ?
12.5 cm ± 2.5 cm     1 stem(s)
17.5 cm ± 2.5 cm     1 stem(s)
stem stem
7 Ilex verticillata Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   -all-  
7.5 %
5       -none-
8 Parathelypteris noveboracensis Parathelypteris noveboracensis **   Parathelypteris noveboracensis **   Parathelypteris noveboracensis **   Parathelypteris noveboracensis **   Parathelypteris noveboracensis **   Parathelypteris noveboracensis **   Parathelypteris noveboracensis **   Parathelypteris noveboracensis **   -all-  
7.5 %
5       -none-
9 Athyrium asplenioides Athyrium asplenioides **   Athyrium asplenioides **   Athyrium asplenioides **   Athyrium asplenioides **   Athyrium asplenioides **   Athyrium asplenioides **   Athyrium asplenioides **   Athyrium asplenioides **   -all-  
7.5 %
5       -none-
10 Veratrum viride Veratrum viride **   Veratrum viride **   Veratrum viride **   Veratrum viride **   Veratrum viride **   Veratrum viride **   Veratrum viride **   Veratrum viride **   -all-  
7.5 %
5       -none-
11 Vaccinium fuscatum Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   -all-  
7.5 %
5       -none-
12 Uvularia sessilifolia Uvularia sessilifolia **   Uvularia sessilifolia **   Uvularia sessilifolia **   Uvularia sessilifolia **   Uvularia sessilifolia **   Uvularia sessilifolia **   Uvularia sessilifolia **   Uvularia sessilifolia **   -all-  
3.5 %
4       -none-
13 Osmunda spectabilis Osmunda spectabilis **   Osmunda spectabilis **   Osmunda spectabilis **   Osmunda spectabilis **   Osmunda spectabilis **   Osmunda spectabilis **   Osmunda spectabilis **   Osmunda spectabilis **   -all-  
3.5 %
4       -none-
14 Chionanthus virginicus Chionanthus virginicus **   Chionanthus virginicus **   Chionanthus virginicus **   Chionanthus virginicus **   Chionanthus virginicus **   Chionanthus virginicus **   Chionanthus virginicus **   Chionanthus virginicus **   -all-  
3.5 %
4       -none-
15 Arisaema triphyllum ssp. triphyllum Arisaema triphyllum ssp. triphyllum **   Arisaema triphyllum ssp. triphyllum **   Arisaema triphyllum ssp. triphyllum **   Arisaema triphyllum ssp. triphyllum **   Arisaema triphyllum ssp. triphyllum **   Arisaema triphyllum ssp. triphyllum **   Arisaema triphyllum ssp. triphyllum **   Arisaema triphyllum ssp. triphyllum **   -all-  
3.5 %
4       -none-
16 Dryopteris cristata Dryopteris cristata **   Dryopteris cristata **   Dryopteris cristata **   Dryopteris cristata **   Dryopteris cristata **   Dryopteris cristata **   Dryopteris cristata **   Dryopteris cristata **   -all-  
3.5 %
4       -none-
17 Persicaria sagittata Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   Persicaria sagittata **   -all-  
3.5 %
4       -none-
18 Rhododendron periclymenoides Rhododendron periclymenoides **   Rhododendron periclymenoides **   Rhododendron periclymenoides **   Rhododendron periclymenoides **   Rhododendron periclymenoides **   Rhododendron periclymenoides **   Rhododendron periclymenoides **   Rhododendron periclymenoides **   -all-  
1.5 %
3      
DBH ?DBH err ?Ht. ?Ht. Err ?# ?
7.5 cm ± 2.5 cm     1 stem(s)
stem
19 Eurybia divaricata Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   Eurybia divaricata **   -all-  
1.5 %
3       -none-
20 Amelanchier arborea Amelanchier arborea **   Amelanchier arborea **   Amelanchier arborea **   Amelanchier arborea **   Amelanchier arborea **   Amelanchier arborea **   Amelanchier arborea **   Amelanchier arborea **   -all-  
1.5 %
3      
DBH ?DBH err ?Ht. ?Ht. Err ?# ?
17.5 cm ± 2.5 cm     1 stem(s)
stem
21 Nabalus altissimus Nabalus altissimus **   Nabalus altissimus **   Nabalus altissimus **   Nabalus altissimus **   Nabalus altissimus **   Nabalus altissimus **   Nabalus altissimus **   Nabalus altissimus **   -all-  
1.5 %
3       -none-
22 Carex gynandra Carex gynandra **   Carex gynandra **   Carex gynandra **   Carex gynandra **   Carex gynandra **   Carex gynandra **   Carex gynandra **   Carex gynandra **   -all-  
1.5 %
3       -none-
23 Glyceria melicaria Glyceria melicaria **   Glyceria melicaria **   Glyceria melicaria **   Glyceria melicaria **   Glyceria melicaria **   Glyceria melicaria **   Glyceria melicaria **   Glyceria melicaria **   -all-  
1.5 %
3       -none-
24 Maianthemum canadense Maianthemum canadense **   Maianthemum canadense **   Maianthemum canadense **   Maianthemum canadense **   Maianthemum canadense **   Maianthemum canadense **   Maianthemum canadense **   Maianthemum canadense **   -all-  
1.5 %
3       -none-
25 Viola cucullata Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   -all-  
1.5 %
3       -none-
26 Vitis labrusca Vitis labrusca **   Vitis labrusca **   Vitis labrusca **   Vitis labrusca **   Vitis labrusca **   Vitis labrusca **   Vitis labrusca **   Vitis labrusca **   -all-  
0.505 %
2       -none-
27 Sagittaria latifolia var. pubescens Sagittaria latifolia var. pubescens **   Sagittaria latifolia var. pubescens **   Sagittaria latifolia var. pubescens **   Sagittaria latifolia var. pubescens **   Sagittaria latifolia var. pubescens **   Sagittaria latifolia var. pubescens **   Sagittaria latifolia var. pubescens **   Sagittaria latifolia var. pubescens **   -all-  
0.505 %
2       -none-
28 Thalictrum pubescens Thalictrum pubescens **   Thalictrum pubescens **   Thalictrum pubescens **   Thalictrum pubescens **   Thalictrum pubescens **   Thalictrum pubescens **   Thalictrum pubescens **   Thalictrum pubescens **   -all-  
0.505 %
2       -none-
29 Smilax glauca Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   -all-  
0.505 %
2       -none-
30 Carex leptalea ssp. leptalea Carex leptalea ssp. leptalea **   Carex leptalea ssp. leptalea **   Carex leptalea ssp. leptalea **   Carex leptalea ssp. leptalea **   Carex leptalea ssp. leptalea **   Carex leptalea ssp. leptalea **   Carex leptalea ssp. leptalea **   Carex leptalea ssp. leptalea **   -all-  
0.505 %
2       -none-
31 Dioscorea quaternata Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   -all-  
0.505 %
2       -none-
32 Rubus sp. Rubus sp. **   Rubus sp. **   Rubus sp. **   Rubus sp. **   Rubus sp. **   Rubus sp. **   Rubus sp. **   Rubus sp. **   -all-  
0.505 %
2       -none-
33 Alnus serrulata Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   -all-  
0.505 %
2       -none-
34 Carya glabra Carya glabra **   Carya glabra **   Carya glabra **   Carya glabra **   Carya glabra **   Carya glabra **   Carya glabra **   Carya glabra **   -all-  
0.505 %
2       -none-
35 Brachyelytrum erectum Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   -all-  
0.505 %
2       -none-
36 Oxypolis rigidior Oxypolis rigidior **   Oxypolis rigidior **   Oxypolis rigidior **   Oxypolis rigidior **   Oxypolis rigidior **   Oxypolis rigidior **   Oxypolis rigidior **   Oxypolis rigidior **   -all-  
0.505 %
2       -none-
37 Anemone quinquefolia var. quinquefolia Anemone quinquefolia var. quinquefolia **   Anemone quinquefolia var. quinquefolia **   Anemone quinquefolia var. quinquefolia **   Anemone quinquefolia var. quinquefolia **   Anemone quinquefolia var. quinquefolia **   Anemone quinquefolia var. quinquefolia **   Anemone quinquefolia var. quinquefolia **   Anemone quinquefolia var. quinquefolia **   -all-  
0.505 %
2       -none-
38 Chelone glabra Chelone glabra **   Chelone glabra **   Chelone glabra **   Chelone glabra **   Chelone glabra **   Chelone glabra **   Chelone glabra **   Chelone glabra **   -all-  
0.505 %
2       -none-
39 Platanthera clavellata Platanthera clavellata **   Platanthera clavellata **   Platanthera clavellata **   Platanthera clavellata **   Platanthera clavellata **   Platanthera clavellata **   Platanthera clavellata **   Platanthera clavellata **   -all-  
0.505 %
2       -none-
40 Juncus effusus Juncus effusus **   Juncus effusus **   Juncus effusus **   Juncus effusus **   Juncus effusus **   Juncus effusus **   Juncus effusus **   Juncus effusus **   -all-  
0.505 %
2       -none-
41 Smilax rotundifolia Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   -all-  
0.505 %
2       -none-
42 Isoetes valida Isoetes valida **   Isoetes valida **   Isoetes valida **   Isoetes valida **   Isoetes valida **   Isoetes valida **   Isoetes valida **   Isoetes valida **   -all-  
0.505 %
2       -none-
43 Carex intumescens var. intumescens Carex intumescens var. intumescens **   Carex intumescens var. intumescens **   Carex intumescens var. intumescens **   Carex intumescens var. intumescens **   Carex intumescens var. intumescens **   Carex intumescens var. intumescens **   Carex intumescens var. intumescens **   Carex intumescens var. intumescens **   -all-  
0.505 %
2       -none-
44 Fagus grandifolia Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   -all-  
0.505 %
2       -none-
45 Medeola virginiana Medeola virginiana **   Medeola virginiana **   Medeola virginiana **   Medeola virginiana **   Medeola virginiana **   Medeola virginiana **   Medeola virginiana **   Medeola virginiana **   -all-  
0.05 %
1       -none-
46 Viburnum dentatum var. lucidum Viburnum dentatum var. lucidum **   Viburnum dentatum var. lucidum **   Viburnum dentatum var. lucidum **   Viburnum dentatum var. lucidum **   Viburnum dentatum var. lucidum **   Viburnum dentatum var. lucidum **   Viburnum dentatum var. lucidum **   Viburnum dentatum var. lucidum **   -all-  
0.05 %
1       -none-
47 Quercus alba Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   -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 ?
McCoy, Kathleen Field assistant
Fleming, Gary Author
Bass, Ken Field assistant
Kieffer, Michael Field assistant
Riley, Erin Field assistant
Fleming, Gary Author
Hobson, Chris Field assistant
Grayson, Leslie Field assistant
Fleming, Gary Author
Community Classification:
More Classification Start Date ? Community AssignmentsContributors
Details 28-Feb-2001
Community Concept ?Class Fit ?Class Confidence ?Community Authority Reference ?Typal ?
Acer rubrum - Nyssa sylvatica / Ilex verticillata - Vaccinium fuscatum / Osmunda cinnamomea Seep 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       11.7200002670288 %   2.92000007629395 % 27.0799999237061 % 70 %   4.80000019073486 13.1499996185303 13.1599998474121 % Soil Nutrient Status: low. Soil profile and depth of surface organic matter variable. Dark, sandy loam is prevalent in the A-horizon; organic-rich muck locally in hollows.


Disturbance Data:
Disturbance Type ?Disturbance Intensity ?Disturbance Comment ?
unknown   Logged in distant past. Beaver activity and invasive exotics, especially Microstegium vimineum, just downstream, pose serious threats.
unknown   Beaver


User Defined Values
No User Defined Data for this plot