Scirpoides holoschoenus(L.) Soják

Round-headed Club-rushround-headed club-rushroundhead bulrush

WFO wfo-0000533499 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Scirpoides holoschoenus, photographed by castieler
fig. a castieler, CC BY 4.0 / 2022-06-02 / obs. 202710670
Scirpoides holoschoenus, photographed by Quentin Groom
fig. b Quentin Groom, CC0 1.0 / obs. 198344080
Scirpoides holoschoenus, photographed by Quentin Groom
fig. c Quentin Groom, CC0 1.0 / obs. 197832872
Scirpoides holoschoenus, photographed by Yann Geshors
fig. d Yann Geshors, CC BY 4.0 / obs. 195970413
Scirpoides holoschoenus, photographed by Duarte Frade
fig. e Duarte Frade, CC BY 4.0 / obs. 195439016
Scirpoides holoschoenus, photographed by scolym
fig. f scolym, CC BY 4.0 / obs. 196006886
Scirpoides holoschoenus, photographed by Eleftherios Katsillis
fig. g Eleftherios Katsillis, CC BY 4.0 / obs. 190817609
Scirpoides holoschoenus, photographed by Duarte Frade
fig. h Duarte Frade, CC BY 4.0 / obs. 189062177

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 57 botanical countries

Regions where Scirpoides holoschoenus is native: Algeria, Canary Is., Cape Provinces, Chad, Egypt, Libya, Morocco, Tunisia, Western Sahara, Afghanistan, Altay, East Aegean Is., Iran, Iraq, Kazakhstan, Kirgizstan, Lebanon-Syria, North Caucasus, Palestine, Saudi Arabia, Sinai, Tadzhikistan, Transcaucasus, Türkiye, Turkmenistan, Uzbekistan, Yemen, Pakistan, West Himalaya, Albania, Austria, Baleares, Belarus, Bulgaria, Central European Russia, Corse, Czechia-Slovakia, East European Russia, France, Germany, Great Britain, Greece, Hungary, Italy, Kriti, Krym, NW. Balkan Pen., Poland, Portugal, Romania, Sardegna, Sicilia, South European Russia, Spain, Switzerland, Türkiye-in-Europe, Ukraine AlgeriaCape ProvincesChadEgyptLibyaMoroccoTunisiaWestern SaharaAfghanistanAltayEast Aegean Is.IranIraqKazakhstanKirgizstanLebanon-SyriaNorth CaucasusPalestineSaudi ArabiaSinaiTadzhikistanTranscaucasusTürkiyeTurkmenistanUzbekistanYemenPakistanWest HimalayaAlbaniaAustriaBelarusBulgariaCentral European RussiaCorseCzechia-SlovakiaEast European RussiaFranceGermanyGreeceHungaryItalyKritiKrymNW. Balkan Pen.PolandPortugalRomaniaSiciliaSouth European RussiaSpainSwitzerlandTürkiye-in-EuropeUkraine Canary Is.BalearesSardegna
Native distribution of Scirpoides holoschoenus, 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
Albania ALB EUROPE
Austria AUT
Baleares BAL
Belarus BLR
Bulgaria BUL
Central European Russia RUC
Corse COR
Czechia-Slovakia CZE
East European Russia RUE
France FRA
Germany GER
Great Britain GRB
Greece GRC
Hungary HUN
Italy ITA
Kriti KRI
Krym KRY
NW. Balkan Pen. YUG
Poland POL
Portugal POR
Romania ROM
Sardegna SAR
Sicilia SIC
South European Russia RUS
Spain SPA
Switzerland SWI
Türkiye-in-Europe TUE
Ukraine UKR
Afghanistan AFG ASIA-TEMPERATE
Altay ALT
East Aegean Is. EAI
Iran IRN
Iraq IRQ
Kazakhstan KAZ
Kirgizstan KGZ
Lebanon-Syria LBS
North Caucasus NCS
Palestine PAL
Saudi Arabia SAU
Sinai SIN
Tadzhikistan TZK
Transcaucasus TCS
Türkiye TUR
Turkmenistan TKM
Uzbekistan UZB
Yemen YEM
Algeria ALG AFRICA
Canary Is. CNY
Cape Provinces CPP
Chad CHA
Egypt EGY
Libya LBY
Morocco MOR
Tunisia TUN
Western Sahara WSA
Pakistan PAK ASIA-TROPICAL
West Himalaya WHM

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.

Flowering 199 in flower of 387 examined

Peak flowering in Jun. Each bar is the share of Scirpoides holoschoenus 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. 199 of 387 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 92 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.

  • Cyperus holoschoenus (L.) Missbach & E.H.L.Krause
  • Holoschoenus australis (L.) Rchb.
  • Holoschoenus diphyllus Montandon
  • Holoschoenus exserens Rchb.
  • Holoschoenus filiformis Rchb.
  • Holoschoenus globifer (L.f.) A.Dietr.
  • Holoschoenus globifer (L.f.) Rchb.
  • Holoschoenus globiferus (L.f.) A.Dietr.
  • Holoschoenus globuliferus (Boiss.) Grossh.
  • Holoschoenus laxus Opiz
  • Holoschoenus linnaei Rchb.
  • Holoschoenus panormitanus (Parl.) Nyman
  • Holoschoenus romanus (L.) Fritsch
  • Holoschoenus romanus f. filiformis (Rchb.) Soó
  • Holoschoenus romanus f. monocephalus (Waisb.) Soó
  • Holoschoenus romanus subsp. australis (L.) Greuter
  • Holoschoenus romanus subsp. holoschoenus (L.) Greuter
  • Holoschoenus romanus var. australis (Murray) Soó
  • Holoschoenus romanus var. australis (L.) Bech.
  • Holoschoenus thunbergii (Schrad.) A.Dietr.
  • Holoschoenus tuberculatus Rchb.
  • Holoschoenus vulgaris Link
  • Holoschoenus vulgaris subsp. panormitanus (Parl.) Nyman
  • Holoschoenus vulgaris subsp. romanus (L.) Hayek

and 68 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.