Spartium junceumL.

Spanish Broom

WFO wfo-0000213405 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Spartium junceum, photographed by Amthinkia
fig. a Amthinkia, CC0 1.0 / 2022-06-08 / obs. 204767741
Spartium junceum, photographed by Pete Bradshaw
fig. b Pete Bradshaw, CC BY 4.0 / obs. 204824329
Spartium junceum, photographed by Pete Bradshaw
fig. c Pete Bradshaw, CC BY 4.0 / obs. 204209078
Spartium junceum, photographed by Pete Bradshaw
fig. d Pete Bradshaw, CC BY 4.0 / obs. 204206436
Spartium junceum, photographed by Josep Gesti
fig. e Josep Gesti, CC BY-SA 4.0 / obs. 199133874
Spartium junceum, photographed by Dan Horowitz
fig. f Dan Horowitz, CC0 1.0 / obs. 203750472
Spartium junceum, photographed by pavlaki1968
fig. g pavlaki1968, CC BY 4.0 / obs. 201590530
Spartium junceum, photographed by Marc Riera
fig. h Marc Riera, CC BY 4.0 / obs. 199161669

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 = 2,315 observations

Peak flowering in May, from 2,315 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 20 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.

  • Cytisus junceus (L.) Vuk.
  • Genista acutifolia Spach
  • Genista americana Spach
  • Genista hispanica Garsault
  • Genista juncea (L.) Scop.
  • Genista odorata Moench
  • Genista odoratissima Spach
  • Spartianthus americanus Steud.
  • Spartianthus junceus Link
  • Spartium acutifolium Lindl.
  • Spartium americanum Meyen
  • Spartium japonicum Miq.
  • Spartium junceum f. ochroleucum (Sprenger) Rehder
  • Spartium junceum f. plenum (Weston) Rehder
  • Spartium junceum unranked ochroleucum Sprenger
  • Spartium junceum var. flore-pleno Carrière
  • Spartium junceum var. plenum Weston
  • Spartium ochroleucum Sprenger
  • Spartium odoratissimum D.Don ex Steud.
  • Spartium odoratum Dulac

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.