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Solidago jejunifolia Steele is native to sandy soils in pine barrens in northern Michigan, Wisconsin and much of Minnesota. It was recently reported to occur in Manitoba (Semple et al. 2012).Ìý The species was treated as a synonym of S. speciosa var. speciosa ²ú²âÌý. Field work and a multivariate study of the S. speciosa complex by the Astereae Lab post FNA indicated that the species should be recognized (Semple et al. 2017).Ìý It produces rosettes of leaves with very long narrow petioles at the time of flowering. The species is most abundant in northern Michigan, western Wisconsin and Minnesota, but disjunct populations occur in Iowa, northwestern Missouri and southeastern Nebraska (Semple 2017).Ìý The species is diploid (2n=18).ÌýSemple and Cook (2022) published a cytogeography maps for S. jejunifolia and related species.

In the polygenomic phylogeny of Solidago, Solidago jejunifolia came out in a clade with S. pallida, S. plumosa, and S. kralii.Ìý

Semple, J.C., L. Tong, B.A. Ford, and C.E. Punter.Ìý 2012.Ìý Solidago jejunifolia new to Manitoba and Canada.Ìý Phytoneuron 2012-112: 1–5.

Semple, J.C., L. Tong, and Y.A. Chong.Ìý 2017.Ìý Multivariate studies of Solidago subsect.ÌýSquarrosae. I. The Solidago speciosa complex (Asteraceae: Astereae).Ìý Phytoneuron 2017-18: 1–23.

Semple, J.C. 2017.Ìý Solidago jejunifolia (Asteraceae:Astereae) in Iowa, Missouri, and Nebraska.Ìý Phytoneuron 2017-19. 1-5

Semple, J.C. and R.E. Cook. 2022. The cytogeography of Solidago sect.ÌýErectae, sect.ÌýVillosicarpae, sect.ÌýSquarrosae, and sect.ÌýBrintonia (Asteraceae: Astereae).Ìý Taxonomy 2: 261–278.

Semple, J.C., McMinn-Sauder, H., Stover, M., Lemmon, A., Lemmon E., and J. B. Beck. 2023. Goldenrod herbariomics: Hybrid-sequence capture reveals the phylogeny of diploid Solidago. Amer. J. Bot. 110(7): e16164.https://doi.org/10.1002/ajb2.16164

Last update 7 April 2025 by J.C. Semple     

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