Gillman’s or Dune Goldenrod
³§´Ç±ô¾±»å²¹²µ´ÇÌýgillmanii (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 simplexÌý±¹²¹°ù.Ìýgillmanii(A. Gray) Ringius by  and included in ssp. randii. Semple & Peirson (2013) supported treating the taxon at the species level. The species tetraploid (2n=36) throughout its range (Peirson et al. 2012).
Semple et al. (2019) presented a multivariate analysis of all 13 species of S.Ìý²õ³Ü²ú²õ±ð³¦³Ù.ÌýHumiles. 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.
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 Solidago²õ³Ü²ú²õ±ð³¦³Ù.ÌýHumiles (Asteraceae: Astereae). Phytoneuron 2019-25: 1–61.
Last update 8 April 2025 by J.C. Semple    Â
© 2025 J.C. Semple, including all photographs unless otherwise indicated
1-x. Solidago gillmanii. 1-2. Dunes habitat and large plant, Semple 11841, Schoolcraft Co., Michigan. 3. Rosette leaves, Semple 11843, Schoolcraft Co., Michigan. 4. Stem and leaves, Semple et al. 2019 Fig 6 A-E. 5. Small inflorescence, Semple 11840, Schoolcraft Co., Michigan. Fig. 6. Heads, Ringius 1852 WAT, Door Co., Wisconsin.