Solidago canadensis var. hargeri

Harger's Canada Goldenrod

Solidago canadensis var. hargeri Fernald is distinguished by its lower to mid stems being moderately hairy (Semple & Cook 2006 FNA). The variety could be confused with S. altissima.  Semple et al. (2015) noted the difficulties in distinguishing var. hargeri and diploid S. altissima var. gilvocanescens. Semple and Chmielewski (2022) reviewed previously published chromosome counts and published a map of the cytogeography for the species.

Solidago canadensis var. hargeri is naturalized in western Europe.

Solidago canadensis var. harger, Poindexter 05-2014 (WAT), North Carolina
Solidago canadensis var. hargeri, lower stem, Poindexter 05-2014 (WAT), North Carolina
Solidago canadensis var. hargeri, naturalized European form, London UK
Solidago canadensis var. harger, Poindexter 05-2014 (WAT), North Carolina
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Solidago canadensis var. hargeri, lower stem, Poindexter 05-2014 (WAT), North Carolina
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Solidago canadensis var. hargeri, naturalized European form, London UK
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Semple, J.C., H. Rahman, H., S. Bvosky, M.K. Sorour, K. Kornobis, R. Lopez Laphitz, and L. Tong. 2015.  A multivariate morphometric study of the Solidago altissima complex and S. canadensis(Asteraceae: Astereae).  Phytoneuron 2015-10. 1–31.

Semple, J.C. and J.G. Chmielewski. 2022. Cytogeography of Solidagoser. Canadenses: S. brendae, S. canadensis, S. elongata, S. fallax, S. lepida, S. rupestris, S. shortii, and S. turneri (Asteraceae: Astereae). Phytoneuron 2022-57. 1-17.

Last updated 21 December 2022 by J.C. Semple

© 2022 J.C. Semple, including all photographs unless otherwise indicated