Solidago gattingeri

Solidago gattingeri Chapman ex A. Gray is native to cedar barrens, limestone ledges and glades in central Tennessee and southern Missouri and adjacent Arkansas.  It is adapted to seasonally dry habitats and can have shiny stems and leaves and phyllaries.  The species has 5–8 ray florets and 3-9 disc florets (Semple & Cook 2006 FNA).  In a multivariate study, Lopez Laphitz et al. (2011) found the S. gattingeri, S. juncea, and S. pinetorum differed from the western three species of subsect. Junceae (S. confinis, S. guiradonis and S. spectabilis), but could be sometimes similar to each other on technical traits. Sample sizes were small and an expanded analysis would be useful. The species is diploid (2n=18) in central Tennesee. Semple (2023) mapped the limited data on the cytogeography of S. gattingeri.

Solidago gattingeri was included in S. subsect. Junceae by Semple and Cook (2006). Semple and Beck (2021) placed it as basal in S. subsect. Radulae following the results of a polygenomic DNA study of Solidago and related genera (Semple et al. 2023).

Lopez Laphitz, R., Yunfei Ma and J.C. Semple. 2011. A multivariate study of Solidago subsect. Junceae and a new species in South America (Asteraceae: Astereae). Novon 21: 219-225.

Semple, J.C. and J.B. Beck. 2021. A revised infrageneric classification of Solidago (Asteraceae: Astereae). Phytoneuron 2021-10. 1-6.

Semple, J.C. 2023. The cytogeography of Solidago subsect. Radulae(Asteraceae: Astereae). Phytoneuron 2023-20: 1–12.

Semple, J.C., McMinn-Sauder, H., Stover, M., Lemmon, A., Lemmon E., and J. B. Beck. 2023 in press. Goldenrod herbariomics: Hybrid-sequence capture reveals the phylogeny of diploid Solidago. Amer. J. Bot. 110: e16164. https://doi.org/10.1002/ajb2.16164

Last revised 16 April 2025 by J.C. Semple

© 2025 J.C. Semple, including all photographs unless otherwise indicated