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Systematics Section / ASPT

Terry, Michael A. [1], Hayden, W. John [1].

Vascular Plants of Powhatan County, Virginia.

Between August 2003 and May 2005, a floristic inventory of Powhatan County, located in the piedmont province of Virginia, was conducted. Bedrock of the region is dominated by metamorphic and igneous rocks of Tertiary age dissected by the James and Appomattox Rivers and their tributaries. Commercial forest (mostly pine) occupies 75% of the land area and natural vegetation in the county includes various hardwood communities. The goal was to produce a thorough vascular plant inventory for this largely rural county currently experiencing exurban development pressure. The annotated checklist is based on new field collections supplemented with records from regional herbarium collections and the Atlas of the Virginia Flora. Field work sampled habitats consistent with at least 12 distinct community groups recognized in Virginia. The checklist contains 1033 taxa, representing 516 genera, and 146 families. Eighteen percent of the species are naturalized introductions. Sixteen newly collected specimens (1.5% of the total) represent rare plants on Virginia's watch lists, and 113 collections (11% of the total) represent new records for Powhatan, including two potential state records.

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1 - University of Richmond, Department of Biology, 28 Westhampton Way, Richmond, Virginia, 23173, USA

vascular plants

Presentation Type: Poster
Session: 33-77
Location: Salon C, D & E - Gov Ballroom/Hilton
Date: Tuesday, August 16th, 2005
Time: 12:30 PM
Abstract ID:114

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