Harris's or Shale-barren Goldenrod
Solidago harrisii Steele is a shale-barren ecotype native to the central Appalachian Mts. It is distinguished by having leaves that are relatively firm, basal usually ± proximally truncate and by having usually sparsely hairy fruits. The species was treated as a variety of S. arguta in Semple & Cook (2006 FNA), but recent unpublished multivariate analyses support species status. The species is tetraploid 2n=36.