085-GRAY-0001
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:14080-{F3632FCC-41D4-4688-9D25-6F9C070C816E} » Citing info
Plot ID Fields:
Author Plot Code	085-GRAY-0001
Author Observation Code	085-GRAY-0001
Location Fields:	MAP: Google | Yahoo | TopoZone | MapQuest
Confidentiality Status	100 km radius (nearest degree)
Latitude	37 º
Longitude	-81 º
State or Province	Virginia
Named Places	county: Grayson region|state|province: Virginia
Layout Fields:
DSG Polygon	10 x 10 m
Area	100 m²
Permanence	not permanent
Environment Fields:
Elevation	1012 m
Slope Aspect	173 º
Slope Gradient	31 º
Topographic Position	middle slope
Hydrologic Regime	terrestrial (upland)
Soil Moisture Regime	xeric
Soil Drainage	rapidly drained
Methods Fields:
Observation Start Date	30-Jun-1999
Observation End Date	30-Jun-1999
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 Cover	30 %
Nonvascular Cover	40 %
Misc Fields:
Observation Narrative	The plot documents pioneer herbaceous vegetation that has gained a foothold on deeper, more continuous moss mats at the upper edge of a massive (10-acre), sloping granitic exposure. Exfoliation features are visible in several places on the outcrop, which get its name from long linear streaks of Grimmia laevigata and other dark mosses that grow along the courses of ephemeral seepage flows on the rock face. The distinctive floristic composition here is characterized by Talinum teretifolium and Minuartia glabra, both common on lower elevation granitic outcrops; Saxifraga michauxii, a species typical of various high elevation outcrops; and Dodecatheon meadia ssp. meadia, a forb most commonly associated with basic or calcareous habitats. Plot located on upper edge of large granite exposure (Striped Rock) on south slope of Point Lookout Mountain, 1.0 mi north of junction of US 21 and Rt. 654.

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 Minuartia glabra Minuartia glabra **   Minuartia glabra **   Minuartia glabra **   Minuartia glabra **   Minuartia glabra **   Minuartia glabra **   Minuartia glabra **   Minuartia glabra **   -all-   17.5 % 6       -none- 2 Hydatica petiolaris Hydatica petiolaris **   Hydatica petiolaris **   Hydatica petiolaris **   Hydatica petiolaris **   Hydatica petiolaris **   Hydatica petiolaris **   Hydatica petiolaris **   Hydatica petiolaris **   -all-   3.5 % 4       -none- 3 Primula meadia Primula meadia **   Primula meadia **   Primula meadia **   Primula meadia **   Primula meadia **   Primula meadia **   Primula meadia **   Primula meadia **   -all-   3.5 % 4       -none- 4 Barbarea vulgaris Barbarea vulgaris **   Barbarea vulgaris **   Barbarea vulgaris **   Barbarea vulgaris **   Barbarea vulgaris **   Barbarea vulgaris **   Barbarea vulgaris **   Barbarea vulgaris **   -all-   3.5 % 4       -none- 5 Phemeranthus teretifolius Phemeranthus teretifolius **   Phemeranthus teretifolius **   Phemeranthus teretifolius **   Phemeranthus teretifolius **   Phemeranthus teretifolius **   Phemeranthus teretifolius **   Phemeranthus teretifolius **   Phemeranthus teretifolius **   -all-   3.5 % 4       -none- 6 Vulpia octoflora Vulpia octoflora **   Vulpia octoflora **   Vulpia octoflora **   Vulpia octoflora **   Vulpia octoflora **   Vulpia octoflora **   Vulpia octoflora **   Vulpia octoflora **   -all-   1.5 % 3       -none- 7 Ambrosia artemisiifolia Ambrosia artemisiifolia **   Ambrosia artemisiifolia **   Ambrosia artemisiifolia **   Ambrosia artemisiifolia **   Ambrosia artemisiifolia **   Ambrosia artemisiifolia **   Ambrosia artemisiifolia **   Ambrosia artemisiifolia **   -all-   1.5 % 3       -none- 8 Tradescantia ohiensis Tradescantia ohiensis **   Tradescantia ohiensis **   Tradescantia ohiensis **   Tradescantia ohiensis **   Tradescantia ohiensis **   Tradescantia ohiensis **   Tradescantia ohiensis **   Tradescantia ohiensis **   -all-   1.5 % 3       -none- 9 Phacelia dubia var. dubia Phacelia dubia var. dubia **   Phacelia dubia var. dubia **   Phacelia dubia var. dubia **   Phacelia dubia var. dubia **   Phacelia dubia var. dubia **   Phacelia dubia var. dubia **   Phacelia dubia var. dubia **   Phacelia dubia var. dubia **   -all-   1.5 % 3       -none- 10 Juncus secundus Juncus secundus **   Juncus secundus **   Juncus secundus **   Juncus secundus **   Juncus secundus **   Juncus secundus **   Juncus secundus **   Juncus secundus **   -all-   0.505 % 2       -none- 11 Danthonia compressa Danthonia compressa **   Danthonia compressa **   Danthonia compressa **   Danthonia compressa **   Danthonia compressa **   Danthonia compressa **   Danthonia compressa **   Danthonia compressa **   -all-   0.505 % 2       -none- 12 Allium cernuum Allium cernuum **   Allium cernuum **   Allium cernuum **   Allium cernuum **   Allium cernuum **   Allium cernuum **   Allium cernuum **   Allium cernuum **   -all-   0.505 % 2       -none- 13 Trifolium campestre Trifolium campestre **   Trifolium campestre **   Trifolium campestre **   Trifolium campestre **   Trifolium campestre **   Trifolium campestre **   Trifolium campestre **   Trifolium campestre **   -all-   0.505 % 2       -none- 14 Myosotis verna Myosotis verna **   Myosotis verna **   Myosotis verna **   Myosotis verna **   Myosotis verna **   Myosotis verna **   Myosotis verna **   Myosotis verna **   -all-   0.505 % 2       -none- 15 Bromus commutatus Bromus commutatus **   Bromus commutatus **   Bromus commutatus **   Bromus commutatus **   Bromus commutatus **   Bromus commutatus **   Bromus commutatus **   Bromus commutatus **   -all-   0.505 % 2       -none- 16 Agrostis perennans Agrostis perennans **   Agrostis perennans **   Agrostis perennans **   Agrostis perennans **   Agrostis perennans **   Agrostis perennans **   Agrostis perennans **   Agrostis perennans **   -all-   0.505 % 2       -none- 17 Bidens frondosa Bidens frondosa **   Bidens frondosa **   Bidens frondosa **   Bidens frondosa **   Bidens frondosa **   Bidens frondosa **   Bidens frondosa **   Bidens frondosa **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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