Gillman’s or Dune Goldenrod
Solidago gillmanii (A. Gray) Steele is native to sand dunes and sometimes sandy beaches on Lake Michigan and northern Lake Huron in Ontario, Michigan, Indiana and Wisconsin. It is tetraploid throughout its range (Peirson et al. 2012). The species was treated as Solidago simplex var. gillmanii (A. Gray) Ringius by Semple & Cook (2006 FNA). Semple & Peirson (2013) supported treating the taxon at the species level.