Bromus inermisLeyss.

smooth brome

WFO wfo-0000855743 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Bromus inermis, photographed by Eugene Popov
fig. a Eugene Popov, CC BY 4.0 / 2022-06-12 / obs. 205730581
Bromus inermis, photographed by Michelle Norcéide
fig. b Michelle Norcéide, CC BY 4.0 / obs. 205390900
Bromus inermis, photographed by Jean Sorensen
fig. c Jean Sorensen, CC BY 4.0 / obs. 204260465
Bromus inermis, photographed by Vasily Moryashkin
fig. d Vasily Moryashkin, CC BY 4.0 / obs. 204422945
Bromus inermis, photographed by Grzegorz Grzejszczak
fig. e Grzegorz Grzejszczak, CC BY-SA 4.0 / obs. 205795255
Bromus inermis, photographed by Marina Potapova
fig. f Marina Potapova, CC0 1.0 / obs. 201216923
Bromus inermis, photographed by Pavel Kacl
fig. g Pavel Kacl, CC BY 4.0 / obs. 201015215
Bromus inermis, photographed by Yurii Basov
fig. h Yurii Basov, CC BY 4.0 / obs. 200706514

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.

Native range 51 botanical countries

Regions where Bromus inermis is native: Afghanistan, Altay, Buryatiya, China North-Central, China South-Central, China Southeast, Chita, Inner Mongolia, Iran, Irkutsk, Kazakhstan, Kirgizstan, Krasnoyarsk, Manchuria, Mongolia, Qinghai, Tadzhikistan, Tibet, Transcaucasus, Türkiye, Turkmenistan, Tuva, Uzbekistan, West Siberia, Xinjiang, Yakutiya, Pakistan, West Himalaya, Austria, Baltic States, Belarus, Bulgaria, Central European Russia, Czechia-Slovakia, East European Russia, France, Germany, Greece, Hungary, Italy, Krym, Netherlands, North European Russia, Northwest European Russia, NW. Balkan Pen., Poland, Romania, South European Russia, Spain, Türkiye-in-Europe, Ukraine AfghanistanAltayBuryatiyaChina North-CentralChina South-CentralChina SoutheastChitaInner MongoliaIranIrkutskKazakhstanKirgizstanKrasnoyarskManchuriaMongoliaQinghaiTadzhikistanTibetTranscaucasusTürkiyeTurkmenistanTuvaUzbekistanWest SiberiaXinjiangYakutiyaPakistanWest HimalayaAustriaBaltic StatesBelarusBulgariaCentral European RussiaCzechia-SlovakiaEast European RussiaFranceGermanyGreeceHungaryItalyKrymNetherlandsNorth European RussiaNorthwest European RussiaNW. Balkan Pen.PolandRomaniaSouth European RussiaSpainTürkiye-in-EuropeUkraine
Native distribution of Bromus inermis, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
Afghanistan AFG ASIA-TEMPERATE
Altay ALT
Buryatiya BRY
China North-Central CHN
China South-Central CHC
China Southeast CHS
Chita CTA
Inner Mongolia CHI
Iran IRN
Irkutsk IRK
Kazakhstan KAZ
Kirgizstan KGZ
Krasnoyarsk KRA
Manchuria CHM
Mongolia MON
Qinghai CHQ
Tadzhikistan TZK
Tibet CHT
Transcaucasus TCS
Türkiye TUR
Turkmenistan TKM
Tuva TVA
Uzbekistan UZB
West Siberia WSB
Xinjiang CHX
Yakutiya YAK
Austria AUT EUROPE
Baltic States BLT
Belarus BLR
Bulgaria BUL
Central European Russia RUC
Czechia-Slovakia CZE
East European Russia RUE
France FRA
Germany GER
Greece GRC
Hungary HUN
Italy ITA
Krym KRY
Netherlands NET
North European Russia RUN
Northwest European Russia RUW
NW. Balkan Pen. YUG
Poland POL
Romania ROM
South European Russia RUS
Spain SPA
Türkiye-in-Europe TUE
Ukraine UKR
Pakistan PAK ASIA-TROPICAL
West Himalaya WHM

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 410 in flower of 1,068 examined

Peak flowering in Jun. Each bar is the share of Bromus inermis observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 410 of 1,068 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 77 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.

  • Bromopsis australis (Zherebina) Tzvelev & Prob.
  • Bromopsis inermis (Leyss.) Holub
  • Bromopsis inermis subsp. aristata (Schur) Tzvelev
  • Bromopsis inermis subsp. australis (Zherebina) Soskov & Sinjakov
  • Bromopsis inermis subsp. reimannii (Asch. & Graebn.) Dostál
  • Bromopsis inermis var. aristata (Schur) Tzvelev
  • Bromopsis inermis var. hirta (Drobow) Tzvelev
  • Bromopsis inermis var. malzevii (Drobow) Tzvelev
  • Bromopsis inermis var. pellita (Beck) Tzvelev
  • Bromopsis probatovae Tzvelev
  • Bromus erectus Turcz. ex Griseb.
  • Bromus erectus var. laxus (Hornem.) Döll
  • Bromus erectus var. laxus (Hornem.) Heynh.
  • Bromus glabrescens Honda
  • Bromus inermis f. aristatus Drobow
  • Bromus inermis f. bulbiferus J.W.Moore
  • Bromus inermis f. glabratus Drobow
  • Bromus inermis f. inermis
  • Bromus inermis f. laxus (Hornem.) Junge
  • Bromus inermis f. muticus Drobow
  • Bromus inermis f. pellitus (Beck) Todor
  • Bromus inermis f. proliferus Louis-Marie
  • Bromus inermis f. pubescens Litv. ex Ganewin
  • Bromus inermis f. villosus (Mert. & W.D.J.Koch) Fernald

and 53 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.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

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