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
32
m
Shrub Height
6
m
Field Height
8
m
Tree Cover
90
%
Shrub Cover
55
%
Field Cover
45
%
Nonvascular Cover
5
%
Misc Fields:
Observation Narrative
The plot is located on the upper part of a very bouldery slope flanking Cub Run in the northern Piedmont Culpeper (Triassic) Basin of Fairfax County. Underlying bedrock is diabase, weathered boulders of which several meters across are strewn over the slope. Vegetation is a dry, mixed forest of oaks, hickories, and white ash with very high species richness (105 taxa / 400 sq. m.).