Solidago lepida var. lepida

Western Canada Goldenrod

Solidago lepida DC. ±¹²¹°ù.Ìýlepida is the most widely distributed of the varietes of S. lepida occurring over much of the range of the species. The infloresence is usually club-shaped and leafy with ascending branches. Eastern plants are hexaploid with large heads; these are likely relatively recent migrants from further west.  In the west, ±¹²¹°ù.Ìýlepida can be difficult to distinguish from plants of ±¹²¹°ù.Ìý²õ²¹±ô±ð²ú°ù´Ç²õ²¹Ìýwith shorter inflorescence branches that are less spreading.  Diploids with few small glands from the Yukon, southeastern British Columbia, Idaho, western Montana and Wyoming can be very similar to plants of S. elongata; including these in S. elongata would greatly expand the range of that species.  The range of var. lepida was mapped by Semple and Chmielewski (2022).  The var. lepida includes diploids (2n=18), tetraploids (2n=36), and hexaploids (2n=54).

Semple, J.C. and J.G. Chmielewski. 2022. Cytogeography of Solidago²õ±ð°ù.ÌýCanadenses (Asteraceae: Astereae):  S. brendae,ÌýS. canadensis,ÌýS. elongata,ÌýS. fallax,ÌýS. lepida,ÌýS. rupestris,ÌýS. shortii, and S. turneri. Phytoneuron 2022-57. 1-17.


Last revised 19 May 2025 by J.C. Semple

© 2025 J.C. Semple, including all photographs unless otherwise indicated

1-6. Solidago lepida var. lepida. 1. Mid size shoots, Glacier NP, Montana. 2. Mid stem leaves, Semple & B. Semple 11367, Custer Co., Idaho. 3-4. Mid stem leaf and inflorescences, Semple & B. Semple 10620, Alaska Hwy, British Columbia. 5. Glands on phyllaries and bracts subtending involucre, Québec, 6. Stalked glands on phyllary margin, Morton & Venn NA17568, New Brunswick, likely introduced.