Basic Hardpan Oak-Hickory Forest

This is the most floristically diverse vegetation type of all Piedmont, Fall Zone, and Coastal Plain types. This community is distinguished from other oak-hickory forests by its patch-dominance of forest grasses and its strong association with sub-level topography and soils with an impermeable hardpan or shallow bedrock. It is found west of Washington DC in the Triassic Basin region.

Table of Contents:


Dominant and Common Species

Sparse Species

Restricted Species

Downloadable Files

This document contains the images found above and additional information that makes it a stand-alone resource. It is intended to be used to help guide restoration efforts in this community.

Basic Oak-Hickory Hardpan 6216 NOVA Description.pdf

This Excel document contains extensive data related to the community. In addition to the Dominant, Common, Sparse, and Restricted Species listed in the charts above, it also contains information about the Rare Species. This file will address many needs for the most detailed user of the data. In the data, one can:

  • Compare species abundance in Northern Virginia to the State-wide level.

  • Sort or filter by species, common name, form, abundance category, constancy, and multiple other metrics and measures

  • Compare "Mean Cover" score to "Mean Cover when Present Score" across species.

Basic Oak Hickory Hardpan 6216 NOVA Data.xlsx