Psorodendron spinosum(A.Gray) Rydb.

Smoketree

WFO wfo-0000180956 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Psorodendron spinosum, photographed by Diana
fig. a Diana, CC BY 4.0 / 2022-05-17 / obs. 198505315
Psorodendron spinosum, photographed by Trevor Van Loon
fig. b Trevor Van Loon, CC BY 4.0 / obs. 183080252
Psorodendron spinosum, photographed by paulexcoff
fig. c paulexcoff, CC BY-SA 4.0 / obs. 189367715
Psorodendron spinosum, photographed by Bobby McCabe
fig. d Bobby McCabe, CC BY 4.0 / obs. 191243838
Psorodendron spinosum, photographed by Amy
fig. e Amy, CC BY 4.0 / obs. 182931182
Psorodendron spinosum, photographed by Craig Martin
fig. f Craig Martin, CC0 1.0 / obs. 181426159
Psorodendron spinosum, photographed by Craig Martin
fig. g Craig Martin, CC0 1.0 / obs. 181571474
Psorodendron spinosum, photographed by Craig Martin
fig. h Craig Martin, CC0 1.0 / obs. 181340820

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.

Confused withby our own model

These are not lookalikes we guessed at. Each one is a species our identification model genuinely mistook for this plant, and how many times. The error rate is published.

Flowering n = 496 observations

Peak flowering in Jun, from 496 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 4 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.

  • Asagraea spinosa (A.Gray) Baill.
  • Dalea spinosa A.Gray
  • Parosela spinosa (A.Gray) A.Heller
  • Psorothamnus spinosus (A.Gray) Barneby

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.