Is Palmer's elm leaf goldenrod real? The Angiosperms353 kit provides within-species signal in Solidago ulmifolia s.l.
J. B. Beck, M. L. Markley, M. G. Zielke, J. R. Thomas, H. J. Hale, L. D. Williams, M. G. Johnson
The paper evaluates the taxonomic status of Solidago ulmifolia var. palmeri using morphological and phylogenomic analyses, finding no support for its distinct status and suggesting its name be discarded.
bioRxiv · Jan 7, 2021 · PreprintEvolutionary Biology