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9 June 2020 Noteworthy Collections: County Additions to the Virginia Flora Vouchered at the Radford University Herbarium
Eric T. Allen, Karen E. Powers, Christine J. Small, Thomas F. Wieboldt
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Abstract

Fifty-seven county records, representing 56 species and 28 vascular plant families, are reported here as new additions to the Virginia flora. All voucher specimen are housed in the Radford University Herbarium (RUHV). Our study examined the entirety of the nearly 10,000-specimen collection at Radford University. Each specimen was manually cross-referenced with current county records; when potentially new county records were discovered, identifications were verified. We also determined whether any new county records were listed as state-, federally-, or globally-imperiled. Among the county records, we also determined the number and distribution of non-native and potentially invasive species. Most specimens were collected from Virginia's Appalachian Mountain region. Of the 56 species, two have conservation ratings of globally and state “vulnerable” (Monotropsis odorata and Aconitum reclinatum). Several others are “globally secure” but of concern in Virginia, including two state-imperiled species (Calopogon tuberosus and Stylophorum diphyllum) and three vulnerable species (Carex shortiana, Pogonia ophioglossoides, and Stachys latidens). We also document the first county records of three invasive species (Ludwigia grandiflora ssp. hexapetala, Poa trivialis, and Securigeria varia). These contributions show how smaller herbarium collections contribute to our understanding of Virginia's natural history and native and non-native flora.

Copyright 2020 Southern Appalachian Botanical Society
Eric T. Allen, Karen E. Powers, Christine J. Small, and Thomas F. Wieboldt "Noteworthy Collections: County Additions to the Virginia Flora Vouchered at the Radford University Herbarium," Castanea 85(1), 14-22, (9 June 2020). https://doi.org/10.2179/0008-7475.85.1.14
Received: 12 June 2019; Accepted: 21 November 2019; Published: 9 June 2020
KEYWORDS
Appalachian Mountains
county records
invasive plants
rare species
Virginia flora
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