Department of Biology
ESC 350
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High-plains Goldenrod
Solidago altiplanities Taylor & Taylor is native to mixed gypsum and shale soils, rocky slopes, escarpments, and ridges in the high plains of Panhandle Texas and adjacent Oklahoma. It is similar to S. juliae but less pubescent and similar to S. altissima var. gilvocanescens but with narrower leaves (Semple & Cook 2006 FNA). Statistical support for recognizing the S. altiplanities was presented by Semple et al. (2015) in a multivariate analysis of the S. altissima complex. One diploid count 2n=18 has been reported for the species. Semple (2023) mapped the cytogeography of S. altiplanities.
Solidago altiplanities was included in S. subsect. Triplinerviae in Semple & Cook 2006 FNA, but was found to be more closely related to S. radula and S. velutina in S. subsect. Radulae (Semple and Beck 2021; Semple et al. 2023 in press).
Solidago altiplanities, Semple & Heard 8234, Cottle Co., Texas
Solidago altiplanities, stem and leaf details, Correll 13031 BRIT, Randall Co., Texas
Solidago altiplanities, heads, Semple & Heard 8234, Cottle Co., Texas
Semple, J.C., H. Rahman, H., S. Sbovski, 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. 2023. The cytogeography of Solidago subsect. Radulae (Asteraceae: Astereae). Phytoneuron 2023-20: 1–12.
Revised 10 July 2023 by J.C. Semple
© 2023 J.C. Semple, including all photographs unless otherwise indicated