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
m²
Plot Quality Fields:
Plot Validation Level
(2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields:
Tree Height
31
m
Shrub Height
4
m
Field Height
1
m
Tree Cover
40
%
Shrub Cover
65
%
Field Cover
45
%
Nonvascular Cover
65
%
Misc Fields:
Observation Narrative
Plot located on a blocky talus slope flanking the mouth of a ravine just above the Potomac River floodplain. The substrate is unstable and the canopy very open because of two recent downfalls (of Acer saccharum and Carya cordiformis). A clone of shrubby Toxicodendron radicans dominates one section of the plot, while Impatiens pallida is abundant in the herb layer throughout.