Department of Biology
ESC 350
200 University Ave. W
Waterloo, Ontario, Canada N2L 3G1
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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. Solidago gillmanii has sharply serrate, apically acute lower stem leaves that are usually > 10 mm wide, unless the shoot is short; cypselae are sparsely strigose proximally and sparsely to moderately dense strigose distally. The species was treated as Solidago simplex var. gillmanii (A. Gray) Ringius by Semple & Cook (2006 FNA) and included in ssp. randii. Semple & Peirson (2013) supported treating the taxon at the species level. It is tetraploid throughout its range (Peirson et al. 2012).
Semple et al. (2019) presented a multivariate analysis of all 13 species of S. subsect. Humiles. Solidago gillmanii was compared to all other species and to the 6 species native to the mid western and eastern US and adjacent Canada and specimens usually were assigned a posterior to S. gillmanii in these analyses.
Solidago gillmanii, robust plant, Semple 11841 (WAT), Schoolcraft Co., Michigan
Solidago gillmanii, rosette leaves, Semple 11843 WAT, Schoolcraft Co., Michigan
Solidago gillmanii, stem, leaves, Semple et al. (2019 Fig 6)
Solidago gillmanii, heads, Ringius 1852 WAT, Wisconsin
Solidago gillmanii, heads and fruit, Semple et al. (2019 Fig 6)
Solidago gillmanii range based on Semple et al. 2019
Semple, J.C. , and J.A. Peirson. 2013. A revised nomenclature for the Solidago simplex complex (Asteraceae: Astereae). Phytoneuron 2013-41. 1-5.
Semple, J.C., K. Kornobis, A. Mazzorato, G.S. Ringius, and J.A. Peirson. 2019. A multivariate morphometric analysis of Solidago subsect. Humiles (Asteraceae: Astereae). Phytoneuron 2019-25: 1–61.
Last update 26 April 2019 by J.C. Semple
© 2019 J.C. Semple, including all photographs unless otherwise indicated