Dixie Goldenrod
Solidago brachyphylla Chapman ex Torrey & A. Gray is native to the southeastern U.S. It has 0–(1–2) rays and leaves that are densely and finely puberulent (Semple & Cook 2006 FNA). The upper stem leaves can be very small. FNA notes the species as possibly occurring also in Mississippi; a number of collections from the state has been seen post FNA. The species is diploid (2n=18). In the polygenomic phylogeny of Solidago (Semple et al. 2023), the specimen of S. brachyphylla was the sister branch to the S. ulmifolia-S. delicatula branch.
Solidago pallescens Mohr may belong in synonymy under S. brachyphylla or the type collection (Baker & Earle s.n. (HT: US digital image!) may be a hybrid. Further work is needed to resolve this problem.
Semple, J.C., H. McMinn-Sauder, M. Stover, A.Lemmon, E. Lemmon, 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 revised 22 May 2025 by J.C. Semple
© 2025 J.C. Semple, including all photographs unless otherwise indicated.
1-4. Solidago brachyphylla. 1. Late season shoot, Semple 10957 WAT, Gadsden Co., Florida. 2. Basal rosette, Curtis 6284 NY, Duval Co., Florida. 3. Upper stem leaves, Cronquist 4699 NY, Upson Co., Georgia. 4. Rayless heads, S 10957.