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Cyperaceae taxon details

Cyperus trigynus Spreng.

1680929 (urn:lsid:marinespecies.org:taxname:1680929)

  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. Cypereae (Tribe)
  13. Cyperinae (Subtribe)
  14. Cyperus (Genus)
  15. Cyperus trigynus (Species)
accepted
Species
Cyperus L.
terrestrial
Not documented
Description Rhizomatous perennial 30–130 cm tall; creeping rhizome. Culm 25–125 cm × (0.9–)1.3–3.5 mm, rounded, smooth. Leaves...  
Description Rhizomatous perennial 30–130 cm tall; creeping rhizome. Culm 25–125 cm × (0.9–)1.3–3.5 mm, rounded, smooth. Leaves reduced to purple leaf sheaths. Involucral bracts rather short, lowermost bract 1–5 cm long, erect, boat-shaped. Inflorescence a ± pseudolateral contracted to lax anthela with several capitate partial inflorescences in first order; primary branches 4–15, lowermost branches (1.5–)3–12 cm long. Spikelets 4.5–9 × (1.7–)2.2–4 mm, with 6–20 glumes; rachilla persistent. Glumes 2.9–4.5 mm long, distichous, deciduous, slightly mucronate, mucro up to 0.5 mm long, reddish stramineous to reddish light brown. Stamens 3, filaments white, strongly elongating after flowering; anthers 1.3–2.5 mm long. Style deeply trifid; style base slightly thickened, persistent. Achenes 0.8–1.1 × (0.3–)0.4–0.5 mm, elliptical to narrow ovate, trigonous, with a short thick beak, brown, surface smooth. [details]

Distribution Cyperus trigynus occurs in Argentina, southern Brazil, and Uruguay.  
Distribution Cyperus trigynus occurs in Argentina, southern Brazil, and Uruguay. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Syst. Veg. 1: 216 1824 to Syst. Veg. 1: 216 (1824), information...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Syst. Veg. 1: 216 1824 to Syst. Veg. 1: 216 (1824), information provided by Alan E. on email Jun. 07 2021 More details could be found in T [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Cyperus trigynus Spreng.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1680929 on 2026-07-23
Date
action
by
2023-09-06 07:35:01Z
created
Larridon, Isabel
2024-12-10 11:47:54Z
unchecked
db_admin

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


Nomenclature

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

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

From editor or global species database
Description Rhizomatous perennial 30–130 cm tall; creeping rhizome. Culm 25–125 cm × (0.9–)1.3–3.5 mm, rounded, smooth. Leaves reduced to purple leaf sheaths. Involucral bracts rather short, lowermost bract 1–5 cm long, erect, boat-shaped. Inflorescence a ± pseudolateral contracted to lax anthela with several capitate partial inflorescences in first order; primary branches 4–15, lowermost branches (1.5–)3–12 cm long. Spikelets 4.5–9 × (1.7–)2.2–4 mm, with 6–20 glumes; rachilla persistent. Glumes 2.9–4.5 mm long, distichous, deciduous, slightly mucronate, mucro up to 0.5 mm long, reddish stramineous to reddish light brown. Stamens 3, filaments white, strongly elongating after flowering; anthers 1.3–2.5 mm long. Style deeply trifid; style base slightly thickened, persistent. Achenes 0.8–1.1 × (0.3–)0.4–0.5 mm, elliptical to narrow ovate, trigonous, with a short thick beak, brown, surface smooth. [details]

Distribution Cyperus trigynus occurs in Argentina, southern Brazil, and Uruguay. [details]

Ecology A halophytic plant, which is characteristic of the vegetation of coastal dunes. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Syst. Veg. 1: 216 1824 to Syst. Veg. 1: 216 (1824), information provided by Alan E. on email Jun. 07 2021 More details could be found in T [details]
    Definitions

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To Biodiversity Heritage Library (1 publication) (from synonym Trichophorum montevidense (Link) G.Don)
To Biodiversity Heritage Library (10 publications) (from synonym Androtrichum trigynum (Spreng.) H.Pfeiff.)
To Biodiversity Heritage Library (13 publications) 
To Biodiversity Heritage Library (14 publications) (from synonym Abildgaardia polycephala Brongn.)
To Biodiversity Heritage Library (2 publications) (from synonym Comostemum globuliferum (J.Presl & C.Presl) Nees)
To Biodiversity Heritage Library (2 publications) (from synonym Cyperus preslii A.Dietr.)
To Biodiversity Heritage Library (24 publications) (from synonym Comostemum montevidense (Link) Nees)
To Biodiversity Heritage Library (25 publications) (from synonym Eriophorum montevidense Link)
To Biodiversity Heritage Library (26 publications) (from synonym Androtrichum polycephalum (Brongn.) Kunth)
To Biodiversity Heritage Library (6 publications) (from synonym Androtrichum montevidense (Link) Schrad.)
To Biodiversity Heritage Library (6 publications) (from synonym Scirpus montevidensis (Link) C.B.Clarke)
To European Nucleotide Archive, ENA (Cyperus trigynus) 
To GenBank (1 nucleotides; 1 proteins) 
To GenBank (1 nucleotides; 1 proteins) (from synonym Androtrichum trigynum (Spreng.) H.Pfeiff.)
To International Plant Names Index (IPNI) (from synonym Androtrichum polycephalum (Brongn.) Kunth)
To International Plant Names Index (IPNI) (from synonym Eriophorum montevidense Link)
To International Plant Names Index (IPNI) (from synonym Scirpus montevidensis (Link) C.B.Clarke)
To International Plant Names Index (IPNI) (from synonym Comostemum montevidense (Link) Nees)
To International Plant Names Index (IPNI) (from synonym Androtrichum trigynum (Spreng.) H.Pfeiff.)
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Androtrichum montevidense (Link) Schrad.)
To International Plant Names Index (IPNI) (from synonym Comostemum globuliferum (J.Presl & C.Presl) Nees)
To International Plant Names Index (IPNI) (from synonym Abildgaardia polycephala Brongn.)
To International Plant Names Index (IPNI) (from synonym Trichophorum montevidense (Link) G.Don)
To International Plant Names Index (IPNI) (from synonym Cyperus preslii A.Dietr.)
To Plants of the World Online (from synonym Cyperus globulifer J.Presl & C.Presl)
To Plants of the World Online (from synonym Cyperus preslii A.Dietr.)
To Plants of the World Online (from synonym Androtrichum montevidense (Link) Schrad.)
To Plants of the World Online (from synonym Comostemum globuliferum (J.Presl & C.Presl) Nees)
To Plants of the World Online 
To Plants of the World Online (from synonym Trichophorum montevidense (Link) G.Don)
To Plants of the World Online (from synonym Abildgaardia polycephala Brongn.)
To Plants of the World Online (from synonym Androtrichum polycephalum (Brongn.) Kunth)
To Plants of the World Online (from synonym Androtrichum trigynum (Spreng.) H.Pfeiff.)
To Plants of the World Online (from synonym Comostemum montevidense (Link) Nees)
To Plants of the World Online (from synonym Scirpus montevidensis (Link) C.B.Clarke)
To Plants of the World Online (from synonym Eriophorum montevidense Link)
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