Bromus hordeaceusL.

common soft brome

WFO wfo-0000855692 Accepted WFO 2026-06 7 photographs CC0 / CC BY

Plate 1 figs. a–g

Bromus hordeaceus, photographed by Liubov Ilminska
fig. a Liubov Ilminska, CC0 1.0 / 2022-06-01 / obs. 202759097
Bromus hordeaceus, photographed by Pavel Kacl
fig. b Pavel Kacl, CC BY 4.0 / obs. 203127896
Bromus hordeaceus, photographed by Yann Kemper
fig. c Yann Kemper, CC0 1.0 / obs. 202760149
Bromus hordeaceus, photographed by Alexis Tinker-Tsavalas
fig. d Alexis Tinker-Tsavalas, CC BY 4.0 / obs. 202960962
Bromus hordeaceus, photographed by Pavel Kacl
fig. e Pavel Kacl, CC BY 4.0 / obs. 203633108
Bromus hordeaceus, photographed by Piotr Panek
fig. f Piotr Panek, CC BY 4.0 / obs. 204133381
Bromus hordeaceus, photographed by Alexis Tinker-Tsavalas
fig. g Alexis Tinker-Tsavalas, CC BY 4.0 / obs. 203238913

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 = 417 observations

Peak flowering in May, from 417 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 137 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.

  • Avena mollis (L.) Salisb.
  • Bromus affinis (Dumort.) B.D.Jacks.
  • Bromus arenarius Thom.-Desm.
  • Bromus atticus Steud. ex Nyman
  • Bromus baumgartenii Steud.
  • Bromus braunii Sennen & Mauricio
  • Bromus compactus Steud.
  • Bromus confertus (G.Mey.) Boreau
  • Bromus confertus var. alpinus K.Koch
  • Bromus confertus var. nanus K.Koch
  • Bromus coytaei Curtis
  • Bromus demissus Porta
  • Bromus glabratus Lindgr.
  • Bromus glomeratus Tausch
  • Bromus hordeaceus f. villosus Pamp.
  • Bromus hordeaceus subsp. bicuspis Hohla & H.Scholz
  • Bromus hordeaceus subsp. jansenii (A.Camus) Lambinon
  • Bromus hordeaceus subsp. mediterraneus (H.Scholz & F.M.Vázquez) H.Scholz
  • Bromus hordeaceus subsp. molliformis (J.Lloyd ex Billot) Maire & Weiller
  • Bromus hordeaceus subsp. mollis (L.) Maire
  • Bromus hordeaceus subsp. parvispiculatus (H.Scholz) Barina
  • Bromus hordeaceus subvar. divergens Hack.
  • Bromus hordeaceus var. conglomeratus (Pers.) Druce
  • Bromus hordeaceus var. contractus (Lange) Asch. & Graebn.

and 113 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.