Isocoma menziesii(Hook. & Arn.) G.L.Nesom

Coastal Goldenbush

WFO wfo-0000116480 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Isocoma menziesii, photographed by Jim Riley
fig. a Jim Riley, CC0 1.0 / 2022-06-05 / obs. 203729002
Isocoma menziesii, photographed by Dan Horowitz
fig. b Dan Horowitz, CC0 1.0 / obs. 205582970
Isocoma menziesii, photographed by Millie Basden
fig. c Millie Basden, CC BY 4.0 / obs. 192673533
Isocoma menziesii, photographed by Jim Riley
fig. d Jim Riley, CC0 1.0 / obs. 198454462
Isocoma menziesii, photographed by Jacob Malcom
fig. e Jacob Malcom, CC BY-SA 4.0 / obs. 194210891
Isocoma menziesii, photographed by Trevor Van Loon
fig. f Trevor Van Loon, CC BY 4.0 / obs. 185112108
Isocoma menziesii, photographed by James C. Davis
fig. g James C. Davis, CC BY-SA 4.0 / obs. 184187100
Isocoma menziesii, photographed by James C. Davis
fig. h James C. Davis, CC BY-SA 4.0 / obs. 183631173

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 = 1,083 observations

Peak flowering in Sep, from 1,083 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 31 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.

  • Bigelowia furfuracea Greene
  • Bigelowia menziesii (Hook. & Arn.) A.Gray
  • Bigelowia menziesii var. menziesii
  • Bigelowia tridentata Greene
  • Bigelowia veneta var. decumbens Brandegee ex Jeps.
  • Bigelowia veneta var. sedoides Greene
  • Gutierrezia furferacea Greene
  • Haplopappus fasciculatus Vasey & Rose
  • Haplopappus menziesii (Hook. & Arn.) Torr. & A.Gray
  • Haplopappus tridentatus S.F.Blake
  • Haplopappus venetus subsp. furfuraceus H.M.Hall
  • Haplopappus venetus subsp. oxyphyllus (Greene) H.M.Hall
  • Haplopappus venetus subsp. vernonioides (Nutt.) H.M.Hall
  • Haplopappus venetus var. oxyphyllus Munz
  • Haplopappus venetus var. sedoides Munz
  • Isocoma decumbens Greene
  • Isocoma latifolia Greene
  • Isocoma leucanthemifolia Greene
  • Isocoma microdonta Greene
  • Isocoma oxyphylla Greene
  • Isocoma sedoides (Greene) Greene
  • Isocoma tridentata (Greene) Greene
  • Isocoma veneta var. decumbens (Brandegee) Jeps.
  • Isocoma veneta var. furfuracea (Greene) R.M.Beauch.

and 7 more.

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.