Solidago caesiaL.

bluestem goldenrod

WFO wfo-0000040422 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Solidago caesia, photographed by Ryan Sorrells
fig. a Ryan Sorrells, CC BY 4.0 / 2022-04-26 / obs. 191173590
Solidago caesia, photographed by Michael J. Papay
fig. b Michael J. Papay, CC BY 4.0 / obs. 169027475
Solidago caesia, photographed by Henry "Nick" Robertson
fig. c Henry "Nick" Robertson, CC BY-SA 4.0 / obs. 170667770
Solidago caesia, photographed by Michael J. Papay
fig. d Michael J. Papay, CC BY 4.0 / obs. 166994274
Solidago caesia, photographed by Michael J. Papay
fig. e Michael J. Papay, CC BY 4.0 / obs. 164199417
Solidago caesia, photographed by Tom Field
fig. f Tom Field, CC BY 4.0 / obs. 168998487
Solidago caesia, photographed by Lynn Harper
fig. g Lynn Harper, CC0 1.0 / obs. 163653166
Solidago caesia, photographed by Navin Sasikumar
fig. h Navin Sasikumar, CC BY 4.0 / obs. 164100833

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Flowering n = 2,984 observations

Peak flowering in Sep, from 2,984 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Also published as 8 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Aster caesius Kuntze
  • Solidago caesia f. axillaris (Banks ex Pursh) House
  • Solidago caesia f. axillaris (Pursh) House
  • Solidago caesia f. caesia
  • Solidago caesia var. axillaris (Pursh) A.Gray
  • Solidago caesia var. paniculata A.Gray
  • Solidago gracilis Hort.Par. ex Poir.
  • Solidago lateriflora Raf. ex DC.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.

We publish what we can source and we say so when we cannot. This page has no care advice, no toxicity claim and no native range, because we do not yet have those from a source we can cite.