Solidago flaccidifolia

Mountain or Appalachian Goldenrod

Solidago flaccidifolia Small is the more hairy leaved race of the S. curtisii complex and was treated as S. curtisii var. flaccidifolia (Small) R.E. Cook and Semple in FNA (Semple & Cook 2006 FNA).  Cronquist (1980) recognized the taxon as a separate species. The broadest-leaved forms of the species occur in var. flaccidifolia. They can be confused with S. flexicaulis but lack the flexuous distal stem of the latter (Semple & Cook 2006 FNA).

Solidago flaccidifolia includes diploids 2n=18, tetraploids 2n=36, and hexaploids 2n=54.  The cytogeography was illustrated in Semple and Cook (2008).