Hordeum secalinumSchreb.

meadow barley

WFO wfo-0000874994 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Hordeum secalinum, photographed by Robert H. Wardell
fig. a Robert H. Wardell, CC0 1.0 / 2020-09-03 / obs. 93299158
Hordeum secalinum, photographed by Robert H. Wardell
fig. b Robert H. Wardell, CC0 1.0 / obs. 91416042
Hordeum secalinum, photographed by Robert H. Wardell
fig. c Robert H. Wardell, CC0 1.0 / obs. 91405882
Hordeum secalinum, photographed by Robert H. Wardell
fig. d Robert H. Wardell, CC0 1.0 / obs. 87285993
Hordeum secalinum, photographed by Robert H. Wardell
fig. e Robert H. Wardell, CC0 1.0 / obs. 87256123
Hordeum secalinum, photographed by Robert H. Wardell
fig. f Robert H. Wardell, CC0 1.0 / obs. 86724469
Hordeum secalinum, photographed by Daniel Cahen
fig. g Daniel Cahen, CC BY 4.0 / obs. 20620747
Hordeum secalinum, photographed by Piermario Maculan
fig. h Piermario Maculan, CC0 1.0 / obs. 146217200

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 28 botanical countries

Regions where Hordeum secalinum is native: Algeria, Madeira, Morocco, Tunisia, Lebanon-Syria, North Caucasus, Palestine, Belgium, Bulgaria, Corse, Czechia-Slovakia, Denmark, France, Germany, Great Britain, Greece, Ireland, Italy, Krym, Netherlands, NW. Balkan Pen., Poland, Portugal, Romania, Sicilia, Spain, Sweden, Switzerland AlgeriaMoroccoTunisiaLebanon-SyriaNorth CaucasusPalestineBelgiumBulgariaCorseCzechia-SlovakiaDenmarkFranceGermanyGreeceIrelandItalyKrymNetherlandsNW. Balkan Pen.PolandPortugalRomaniaSiciliaSpainSwedenSwitzerland Madeira
Native distribution of Hordeum secalinum, 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. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Belgium BGM EUROPE
Bulgaria BUL
Corse COR
Czechia-Slovakia CZE
Denmark DEN
France FRA
Germany GER
Great Britain GRB
Greece GRC
Ireland IRE
Italy ITA
Krym KRY
Netherlands NET
NW. Balkan Pen. YUG
Poland POL
Portugal POR
Romania ROM
Sicilia SIC
Spain SPA
Sweden SWE
Switzerland SWI
Algeria ALG AFRICA
Madeira MDR
Morocco MOR
Tunisia TUN
Lebanon-Syria LBS ASIA-TEMPERATE
North Caucasus NCS
Palestine PAL

Not drawn on the map: Great Britain. We hold no public-domain boundary for this region, so it is listed rather than guessed at.

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.

Where it actually grows measured, from 223 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -1.5 °C 2.1 °C 3.8 °C
Warmest month, mean daily high 19.6 °C 20.4 °C 24.1 °C
Annual rainfall 608 mm 797 mm 898 mm
Rainfall in the driest quarter 124 mm 148 mm 167 mm

It is found where winters bring light frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 223 research-grade observations of Hordeum secalinum that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 19 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.

  • Critesion secalinum (Schreb.) Á.Löve
  • Frumentum pratense E.H.L.Krause
  • Hordeum maritimum Roth
  • Hordeum maximum Vill.
  • Hordeum murinum subsp. secalinum (Schreb.) Bonnier & Layens
  • Hordeum nodosum var. maroccanum Maire
  • Hordeum nodosum var. secalinum (Schreb.) Maire
  • Hordeum pratense Huds.
  • Hordeum pratense var. maritimum (Roth) Steud.
  • Hordeum pratense var. pubescens Peterm.
  • Hordeum rothii Link
  • Hordeum secalinum var. angustifolium J.T.Jansen & Wacht.
  • Hordeum secalinum var. distichum J.T.Jansen & Wacht.
  • Hordeum secalinum var. maritimum (Roth) W.D.J.Koch
  • Hordeum secalinum var. pubescens N.H.F.Desp.
  • Hordeum secalinum var. uniflorum Lojac.
  • Hordeum sibiricum Link ex Steud.
  • Zeocriton maritimum P.Beauv.
  • Zeocriton secalinum (Schreb.) P.Beauv.

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.