Northern Rough-leaf Goldenrod
Solidago rugosa var. rugosa is the most northernly distributed variety in the species. Inflorescences vary from secund dense pyramidal to few-branched and S. ulmifolia-like (Semple & Cook 2006 FNA). The "villosa" morph has short lower branches not extending beyond the subtending leaves.
1-4. Solidago rugosa var. rugosa. 1. Habit, Semple & B. Semple 11447, Gaspésie, Québec. 2. Rhizome, Ontario. 3. Mid stem leaf, Waterloo Co., Ontario. 4. Inflorescence of "villosa" form, Semple & Brammall 2365, Manitoulin Dist., Ontario.
Last revised 13 April 2025 by J.C. Semple
© 2025 J.C. Semple, including all photographs unless otherwise indicated