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Cyperaceae taxon details

Fimbristylis tetragona R.Br.

To Genève Herbarium (Fimbristylis abjiciens G00191610 type 1)
To Genève Herbarium (Fimbristylis abjiciens G00191610 type 1)

1679772 (urn:lsid:marinespecies.org:taxname:1679772)

  1. Biota
  2. Plantae (Kingdom)
  3. Viridiplantae (Subkingdom)
  4. Streptophyta (Infrakingdom)
  5. Tracheophyta (Phylum (Division))
  6. Spermatophytina (Subphylum (Subdivision))
  7. Magnoliopsida (Class)
  8. Lilianae (Superorder)
  9. Poales (Order)
  10. Cyperaceae (Family)
  11. Cyperoideae (Subfamily)
  12. Abildgaardieae (Tribe)
  13. Fimbristylis (Genus)
  14. Fimbristylis tetragona (Species)
accepted
Species
marine, brackish, fresh, terrestrial
recent only
Brown, R. (1810). Prodromus florae Novae Hollandiae et Insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805 per oras utriusque insulae collegit et descripsit Robertus Brown; insertis passim aliis speciebus auctori hucusque cognitis, seu evulgatis, seu ineditis, praesertim Banksianis, in primo itinere navarchi Cook detectis. Vol. 1 pp. [i]-viii, 145-590 p., [1] h. ["Addenda"]. Londini [London]: typis Richardi Taylori et Scoii. Veneunt apud J. Johnson et Socios, in Caementerio Sancti Pauli., available online at https://www.biodiversitylibrary.org/page/6157371
page(s): 226 [details] 
Lectotype  BM 000990941, geounit Northern Territory  
Lectotype BM 000990941, geounit Northern Territory [details]
Description Annuals or short-lived perennials. Rhizomes poorly developed. Culms densely tufted, (8-)18-50(-60) cm tall, 4-angled,...  
Description Annuals or short-lived perennials. Rhizomes poorly developed. Culms densely tufted, (8-)18-50(-60) cm tall, 4-angled, smooth, with few leaf sheaths at base. Leaves bladeless; sheath margin brown membranous, mouth obliquely truncate. Involucral bracts absent. Inflorescences reduced to a single terminal spikelet, ovoid to ellipsoid, 5-10 × 3-6 mm, many flowered, apex obtuse to rounded. Glumes densely spirally imbricate, pale brownish yellow, oblong, 3.5-5 mm, membranous, many veined, middle 3 veins thicker but abaxially not forming a keel, base sometimes narrower, apex not mucronate. Stamens 3; anthers linear, 1.2-1.5 mm. Style long and compressed, sparsely ciliate, basally gradually broader and nearly as wide as nutlet; stigmas 2 or 3. Nutlet pale brown, with a ca. 0.7 mm stipe, narrowly oblong, ca. 2.5 mm, biconvex, shiny and with obvious hexagonal reticulation. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Prodr. Fl. Nov. Holl. 226 1810 to Prodr. Fl. Nov. Holland. : 226...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Prodr. Fl. Nov. Holl. 226 1810 to Prodr. Fl. Nov. Holland. : 226 (1810), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Fimbristylis tetragona R.Br.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1679772 on 2026-09-24
Date
action
by
2023-09-06 07:35:01Z
created
Larridon, Isabel
2024-12-10 11:47:54Z
unchecked
db_admin
2025-04-18 05:24:38Z
changed
Wilson, Karen L.

Creative Commons License The webpage text is licensed under a Creative Commons Attribution 4.0 License


Nomenclature

original description Brown, R. (1810). Prodromus florae Novae Hollandiae et Insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805 per oras utriusque insulae collegit et descripsit Robertus Brown; insertis passim aliis speciebus auctori hucusque cognitis, seu evulgatis, seu ineditis, praesertim Banksianis, in primo itinere navarchi Cook detectis. Vol. 1 pp. [i]-viii, 145-590 p., [1] h. ["Addenda"]. Londini [London]: typis Richardi Taylori et Scoii. Veneunt apud J. Johnson et Socios, in Caementerio Sancti Pauli., available online at https://www.biodiversitylibrary.org/page/6157371
page(s): 226 [details] 

basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details] 

Other

additional source Li, B. Z.; Zhang, S. R. (2024). An updated species checklist and taxonomic synopsis of Cyperaceae in China. <em>Biodiversity Science.</em> 32(7): 24106., available online at https://doi.org/10.17520/biods.2024106 [details] Available for editors  PDF available [request]

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Lectotype BM 000990941, geounit Northern Territory [details]
From editor or global species database
Description Annuals or short-lived perennials. Rhizomes poorly developed. Culms densely tufted, (8-)18-50(-60) cm tall, 4-angled, smooth, with few leaf sheaths at base. Leaves bladeless; sheath margin brown membranous, mouth obliquely truncate. Involucral bracts absent. Inflorescences reduced to a single terminal spikelet, ovoid to ellipsoid, 5-10 × 3-6 mm, many flowered, apex obtuse to rounded. Glumes densely spirally imbricate, pale brownish yellow, oblong, 3.5-5 mm, membranous, many veined, middle 3 veins thicker but abaxially not forming a keel, base sometimes narrower, apex not mucronate. Stamens 3; anthers linear, 1.2-1.5 mm. Style long and compressed, sparsely ciliate, basally gradually broader and nearly as wide as nutlet; stigmas 2 or 3. Nutlet pale brown, with a ca. 0.7 mm stipe, narrowly oblong, ca. 2.5 mm, biconvex, shiny and with obvious hexagonal reticulation. [details]

Lectotype Lectotypified by KL Wilson in Simpson (2019: 145); further type details in Mabberley and Moore (2022: 222) [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Prodr. Fl. Nov. Holl. 226 1810 to Prodr. Fl. Nov. Holland. : 226 (1810), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
    Definitions

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To Biodiversity Heritage Library (1 publication) (from synonym Fimbristylis arnottii Thwaites)
To Biodiversity Heritage Library (11 publications) (from synonym Mischospora efoliata Boeckeler)
To Biodiversity Heritage Library (12 publications) (from synonym Fimbristylis cylindrocarpa Kunth)
To Biodiversity Heritage Library (2 publications) (from synonym Fimbristylis oxyrhachis Miq.)
To Biodiversity Heritage Library (2 publications) (from synonym Iria tetragona (R.Br.) Kuntze)
To Biodiversity Heritage Library (3 publications) (from synonym Fimbristylis xyrioides Arn. ex Thwaites)
To Biodiversity Heritage Library (41 publications) (from synonym Scirpus tetragonus (R.Br.) Poir.)
To Biodiversity Heritage Library (5 publications) (from synonym Trichelostylis xyroides Arn. ex Hook.f.)
To Biodiversity Heritage Library (51 publications) 
To Biodiversity Heritage Library (9 publications) (from synonym Fimbristylis abjiciens Steud.)
To European Nucleotide Archive, ENA (Fimbristylis tetragona) 
To Genève Herbarium (Fimbristylis abjiciens G00191610 type 1) (from synonym Fimbristylis abjiciens Steud.)
To Genève Herbarium (Fimbristylis abjiciens G00191611 type 1) (from synonym Fimbristylis abjiciens Steud.)
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Fimbristylis xyrioides Arn. ex Thwaites)
To International Plant Names Index (IPNI) (from synonym Iria tetragona (R.Br.) Kuntze)
To International Plant Names Index (IPNI) (from synonym Fimbristylis cylindrocarpa Kunth)
To International Plant Names Index (IPNI) (from synonym Fimbristylis oxyrhachis Miq.)
To International Plant Names Index (IPNI) (from synonym Fimbristylis abjiciens Steud.)
To International Plant Names Index (IPNI) (from synonym Fimbristylis arnottii Thwaites)
To International Plant Names Index (IPNI) (from synonym Scirpus tetragonus (R.Br.) Poir.)
To International Plant Names Index (IPNI) (from synonym Mischospora efoliata Boeckeler)
To International Plant Names Index (IPNI) (from synonym Trichelostylis xyroides Arn. ex Hook.f.)
To IUCN Red List (Least Concern) 
To Plants of the World Online 
To Plants of the World Online (from synonym Fimbristylis arnottii Thwaites)
To Plants of the World Online (from synonym Fimbristylis cylindrocarpa Kunth)
To Plants of the World Online (from synonym Fimbristylis abjiciens Steud.)
To Plants of the World Online (from synonym Fimbristylis oxyrhachis Miq.)
To Plants of the World Online (from synonym Mischospora efoliata Boeckeler)
To Plants of the World Online (from synonym Iria tetragona (R.Br.) Kuntze)
To Plants of the World Online (from synonym Fimbristylis xyrioides Arn. ex Thwaites)
To Plants of the World Online (from synonym Trichelostylis xyroides Arn. ex Hook.f.)
To Plants of the World Online (from synonym Scirpus tetragonus (R.Br.) Poir.)
To Royal Botanic Garden Edinburgh Herbarium (Fimbristylis arnottii E00386768 syntype 1) (from synonym Fimbristylis arnottii Thwaites)
To Royal Botanic Garden Edinburgh Herbarium (Fimbristylis arnottii E00386769 syntype 1) (from synonym Fimbristylis arnottii Thwaites)
To Royal Botanic Garden Edinburgh Herbarium (Fimbristylis arnottii E00386770 syntype 1) (from synonym Fimbristylis arnottii Thwaites)
To Royal Botanic Garden Edinburgh Herbarium (Fimbristylis arnottii E00386771 syntype 1) (from synonym Fimbristylis arnottii Thwaites)
To Royal Botanic Garden Edinburgh Herbarium (Fimbristylis arnottii E00386772 syntype 1) (from synonym Fimbristylis arnottii Thwaites)
To Royal Botanic Garden Edinburgh Herbarium (Fimbristylis arnottii E00386774 syntype 1) (from synonym Fimbristylis arnottii Thwaites)
To Royal Botanic Garden Edinburgh Herbarium (Fimbristylis tetragona E00373587 isotype 1) 
To the Natural History Museum, London (Fimbristylis tetragona R.Br. BM000990941 type 1) 
To the Natural History Museum, London (Fimbristylis tetragona R.Br. BM000990942 type 1) 
From editor or global species database
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