Phleum hirsutumHonck.

WFO wfo-0000890043 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 3 observations

This species has been photographed under an open licence only 3 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Phleum hirsutum, photographed by Christian Berg
fig. a Christian Berg, CC BY 4.0 / 2020-08-05 / obs. 92410723
Phleum hirsutum, photographed by Patrick Schwager
fig. b Patrick Schwager, CC BY 4.0 / obs. 61481874
Phleum hirsutum, photographed by Christian Berg
fig. c Christian Berg, CC BY 4.0 / obs. 80092079
Phleum hirsutum, photographed by Christian Berg
fig. d Christian Berg, CC BY 4.0 / obs. 92410944
Phleum hirsutum, photographed by Christian Berg
fig. e Christian Berg, CC BY 4.0 / obs. 80092524
Phleum hirsutum, photographed by Christian Berg
fig. f Christian Berg, CC BY 4.0 / obs. 92410991
Phleum hirsutum, photographed by Christian Berg
fig. g Christian Berg, CC BY 4.0 / obs. 80092559
Phleum hirsutum, photographed by Christian Berg
fig. h Christian Berg, CC BY 4.0 / obs. 92411030

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 16 botanical countries

Regions where Phleum hirsutum is native: North Caucasus, Transcaucasus, Albania, Austria, Bulgaria, Czechia-Slovakia, France, Germany, Greece, Italy, NW. Balkan Pen., Poland, Romania, Sicilia, Switzerland, Ukraine North CaucasusTranscaucasusAlbaniaAustriaBulgariaCzechia-SlovakiaFranceGermanyGreeceItalyNW. Balkan Pen.PolandRomaniaSiciliaSwitzerlandUkraine
Native distribution of Phleum hirsutum, 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
Albania ALB EUROPE
Austria AUT
Bulgaria BUL
Czechia-Slovakia CZE
France FRA
Germany GER
Greece GRC
Italy ITA
NW. Balkan Pen. YUG
Poland POL
Romania ROM
Sicilia SIC
Switzerland SWI
Ukraine UKR
North Caucasus NCS ASIA-TEMPERATE
Transcaucasus TCS

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 31 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -16.3 °C -9.4 °C 1.7 °C
Warmest month, mean daily high 13.6 °C 17.8 °C 26.7 °C
Annual rainfall 801 mm 1,672 mm 2,519 mm
Rainfall in the driest quarter 158 mm 296 mm 476 mm

It is found where winters are severely cold. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 31 research-grade observations of Phleum hirsutum 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 24 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.

  • Chilochloa cuspidata P.Beauv.
  • Chilochloa hirsuta (Honck.) Gray
  • Chilochloa michelii (All.) P.Beauv.
  • Phalaris alpina Haenke
  • Phalaris alpina Turra
  • Phalaris ciliaris Spreng.
  • Phalaris ciliata Lag.
  • Phalaris cuspidata (Willd.) Steud.
  • Phalaris michelii (All.) Savi
  • Phalaris mucronata Desf.
  • Phleum ambiguum Ten.
  • Phleum cuspidatum Willd.
  • Phleum hirsutum subsp. ambiguum (Ten.) Cif. & Giacom.
  • Phleum hirsutum subsp. ambiguum (Ten.) Tzvelev
  • Phleum hirsutum subsp. dactylinum A.-G.Helm
  • Phleum michelii All.
  • Phleum michelii subsp. ambiguum (Ten.) Arcang.
  • Phleum michelii subsp. subincrassatum Griseb.
  • Phleum michelii var. subincrassatum Griseb.
  • Phleum phalarideum Vill.
  • Phleum subincrassatum (Griseb.) Chrtek
  • Phleum trigynum Schrad. ex Mert. & W.D.J.Koch
  • Phleum tzvelevii Dubovik
  • Plantinia cuspidata (Willd.) Bubani

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. 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.