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1 July 2014 Packera serpenticola (Asteraceae; Senecioneae), a New Species from North Carolina, U. S. A.
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Abstract

Packera serpenticola (Asteraceae; Senecioneae), an interesting arachnoid pubescent species restricted to dunite derived soils (olivine and serpentine) in Clay County, North Carolina, is described as new. The plants most closely resemble Packera aurea, a common species of the Appalachian region, but are diminutive in all parts, conspicuously arachnoid pubescent, especially when young, and dull gray in appearance. In addition to phenotypic differences, our molecular analysis with limited samples show that the two species have marked divergence at one nuclear gene (waxy) and one chloroplast intergenic spacer (psbA-trnH). Packera aurea is also absent on dunite.

© Copyright 2014 by the American Society of Plant Taxonomists DOI 10.1600/ 036364414X682274 Date of publication 06/17/2014
David E. Boufford, John T. Kartesz, Suhua Shi, and Renchao Zhou "Packera serpenticola (Asteraceae; Senecioneae), a New Species from North Carolina, U. S. A.," Systematic Botany 39(3), 1027-1030, (1 July 2014). https://doi.org/10.1600/036364414X682274
Published: 1 July 2014
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