Solidago spellenbergii

Spellenberg's Goldenrod

Solidago spellenbergii Semple was recently described (Semple 2017) from a single collection from Parque Nacional de Cascada Basaseachic, Chihuahua, Mexico: R. Spellenberg & D. Jewell 9266 (holotype: NMC; isotype: MEXU, digital image).  The species differs from S. wrightii in having long, narrow stem leaves, heads with nearly smooth phyllaries, and fruits with very few hairs.  Both species were included in a multivariate analysis of all taxa in Solidago subsect. Thyrsiflorae (Semple et al. 2017).  More collections of S. spellenbergii are needed to determine its range of morphological variation and details of preferred habitat.  The chromosome number is unknown.

Solidago spellenbergii range draft JCS

Semple, J.C. 2017. Solidago spellenbergii (Asteraceae: Astereae), a new species of goldenrod from Mexico. Phytoneuron 2017-75: 1–8.

Semple, J.C., Y. Ma, U. Naik, N. Steenhof, and L. Tong. 2017. A multivariate morphometric analysis of Solidago subsect. Thyrsiflorae (Asteraceae: Astereae). Phytoneuron 2017-77: 1–37.

Last updated 25 October 2017 by J.C. Semple

© 2017 J.C. Semple, including all photographs unless otherwise indicated.