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Solidago patula Muhl. is distinguished by having finely scabrous leaves and striate-ridged stems.  As treated here it includes only ssp. patula in Flora North America (); ssp. strictula is treated now as S. salicina following Semple et al. (2012).  The two species were placed in ³§.Ìý²õ³Ü²ú²õ±ð³¦³Ù.ÌýPatulae Semple & J.B. Beck in S.Ìý²õ±ð³¦³Ù.ÌýArgutae by Semple and Beck (2021) based on results of the polygenomic DNA study (Semple et al. 2023) .  The two species were included in a multivariate analysis of S. sect. ´¡°ù²µ³Ü³Ù²¹±ðÌýby Semple et al. (2021).  This species is diploid (2n=18) throughout its range. Semple and Morton (2024) presented a map of the cytogeography of S. patula.

Semple, J.C. , L. Tong, and P. Pastolero.  2012.  Neotypification of Solidago salicina (Asteraceae: Astereae) and a multivariate comparison with S. patula.  Phytoneuron 2012-56: 1–6.

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

Semple, J.C., K. Nizamani, K. Kornobis, G. Samra, L. Tong and T. Stavroullakis.  2021.  A multivariate study of SolidagoÌý²õ±ð³¦³Ù.ÌýArgutae(Asteraceae: Astereae).  Phytoneuron 2021-20: 1–56.

Semple, J.C. and G.H. Morton. 2024.  Cytogeography of SolidagoÌý²õ±ð³¦³Ù.ÌýArgutae (Asteraceae: Astereae). Phytoneuron 2024-13: 1–13.

Last revised 13 April 2025 by J.C. Semple

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