Schoenus calostachyus(R.Br.) Roem. & Schult.

WFO wfo-0001263008 Accepted WFO 2026-06 8 photographs CC BY-SA

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.

Schoenus calostachyus, photographed by Greg Tasney
fig. a Greg Tasney, CC BY-SA 4.0 / 2021-12-27 / obs. 173811904
Schoenus calostachyus, photographed by Greg Tasney
fig. b Greg Tasney, CC BY-SA 4.0 / obs. 173811914
Schoenus calostachyus, photographed by Greg Tasney
fig. c Greg Tasney, CC BY-SA 4.0 / obs. 173811933
Schoenus calostachyus, photographed by Greg Tasney
fig. d Greg Tasney, CC BY-SA 4.0 / obs. 89994630
Schoenus calostachyus, photographed by Greg Tasney
fig. e Greg Tasney, CC BY-SA 4.0 / obs. 89974047
Schoenus calostachyus, photographed by Greg Tasney
fig. f Greg Tasney, CC BY-SA 4.0 / obs. 89974149
Schoenus calostachyus, photographed by Greg Tasney
fig. g Greg Tasney, CC BY-SA 4.0 / obs. 89994598
Schoenus calostachyus, photographed by Greg Tasney
fig. h Greg Tasney, CC BY-SA 4.0 / obs. 89974310

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 14 botanical countries

Regions where Schoenus calostachyus is native: China Southeast, Hainan, Nansei-shoto, Borneo, Malaya, New Guinea, Nicobar Is., Sumatera, Thailand, Vietnam, New South Wales, Northern Territory, Queensland, Caroline Is. China SoutheastHainanBorneoMalayaNew GuineaSumateraThailandVietnamNew South WalesNorthern TerritoryQueensland Nansei-shotoNicobar Is.Caroline Is.
Native distribution of Schoenus calostachyus, 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
Borneo BOR ASIA-TROPICAL
Malaya MLY
New Guinea NWG
Nicobar Is. NCB
Sumatera SUM
Thailand THA
Vietnam VIE
China Southeast CHS ASIA-TEMPERATE
Hainan CHH
Nansei-shoto NNS
New South Wales NSW AUSTRALASIA
Northern Territory NTA
Queensland QLD
Caroline Is. CRL PACIFIC

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.

Also published as 5 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.

  • Chaetospora calostachya R.Br.
  • Chaetospora calostachys R.Br.
  • Cyclocampe waigiouensis Steud.
  • Schoenus calostachyus Poir.
  • Schoenus triangularis Volkens

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.