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Cyperaceae taxon details

Eleocharis elliptica Kunth

1681077  (urn:lsid:marinespecies.org:taxname:1681077)

  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. Eleocharideae (Tribe)
  12. Eleocharis (Genus)
  13. Eleocharis elliptica (Species)
accepted
Species

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terrestrial
Not documented
Description Plants perennial, mat-forming; rhizomes evident, fairly long to long, 0.5–2.5 mm thick, hard, cortex persistent, longer...  
Description Plants perennial, mat-forming; rhizomes evident, fairly long to long, 0.5–2.5 mm thick, hard, cortex persistent, longer internodes 2–10 mm, scales persistent, sometimes decaying to coarse fibers, 5–10 mm, membranous to papery. Culms subterete to sometimes compressed, to (2–)3 times as wide as thick, often with (4–)5–10 ridges or angles, 5–90 cm × 0.3–0.8 mm, firm to soft, spongy. Leaves: distal leaf sheaths persistent, not splitting, proximally dark red, distally green to stramineous or red, thinly papery to membranous, apex usually red-brown, obtuse to subacute, often callose, tooth to 0.5 mm usually present on some culms. Spikelets ovoid, 3–8 × 2–3(–4) mm, apex obtuse (to acute); proximal scales amplexicaulous, apex entire; subproximal scale with a flower; floral scales spreading in fruit, 10–30, 5–7 per mm of rachilla, medium to very dark brown, midrib region often paler, ovate, 1.7–3 × 1–1.5 mm, apex rounded to obtuse (or acute), entire or shallowly notched (emarginate) or sometimes cut to 0.5(–0.7) mm deep, apical colorless hyaline part at least as wide as long, 0.2–0.7 mm, carinate in distal part of spikelet. Flowers: perianth bristles absent or rarely 1–3, pale brown, to 1/2 of achene length, sparsely retrorsely spinulose; stamens 3; anthers orange-brown, 0.8–1.7 mm; styles 3-fid or some 2-fid. Achenes persistent after scales fall, usually lemon yellow or dark yellow, orange, or medium brown, rarely greenish, obpyriform, nearly equilaterally to compressed-trigonous, often some biconvex, angles evident to prominent, 0.7–1.2 × 0.6–0.9 mm, neck short or absent, finely to coarsely rugulose at 10X, 12–20 horizontal ridges in vertical series, usually finely cancellate at 10–20X. Tubercles brown to whitish, greatly depressed, apiculate, sometimes pyramidal, 0.1–0.25 × 0.25–0.45 mm. 2n = 38. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Enum. Pl. 2: 146 1837 to Enum. Pl. 2: 146 (1837), information...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Enum. Pl. 2: 146 1837 to Enum. Pl. 2: 146 (1837), information provided by Alan E. on email Jun. 07 2021 More details could be found in The [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Eleocharis elliptica Kunth. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1681077 on 2025-09-12
Date
action
by
2023-09-06 07:35:01Z
created
Larridon, Isabel
2024-12-10 11:47:54Z
unchecked
db_admin

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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 Plants perennial, mat-forming; rhizomes evident, fairly long to long, 0.5–2.5 mm thick, hard, cortex persistent, longer internodes 2–10 mm, scales persistent, sometimes decaying to coarse fibers, 5–10 mm, membranous to papery. Culms subterete to sometimes compressed, to (2–)3 times as wide as thick, often with (4–)5–10 ridges or angles, 5–90 cm × 0.3–0.8 mm, firm to soft, spongy. Leaves: distal leaf sheaths persistent, not splitting, proximally dark red, distally green to stramineous or red, thinly papery to membranous, apex usually red-brown, obtuse to subacute, often callose, tooth to 0.5 mm usually present on some culms. Spikelets ovoid, 3–8 × 2–3(–4) mm, apex obtuse (to acute); proximal scales amplexicaulous, apex entire; subproximal scale with a flower; floral scales spreading in fruit, 10–30, 5–7 per mm of rachilla, medium to very dark brown, midrib region often paler, ovate, 1.7–3 × 1–1.5 mm, apex rounded to obtuse (or acute), entire or shallowly notched (emarginate) or sometimes cut to 0.5(–0.7) mm deep, apical colorless hyaline part at least as wide as long, 0.2–0.7 mm, carinate in distal part of spikelet. Flowers: perianth bristles absent or rarely 1–3, pale brown, to 1/2 of achene length, sparsely retrorsely spinulose; stamens 3; anthers orange-brown, 0.8–1.7 mm; styles 3-fid or some 2-fid. Achenes persistent after scales fall, usually lemon yellow or dark yellow, orange, or medium brown, rarely greenish, obpyriform, nearly equilaterally to compressed-trigonous, often some biconvex, angles evident to prominent, 0.7–1.2 × 0.6–0.9 mm, neck short or absent, finely to coarsely rugulose at 10X, 12–20 horizontal ridges in vertical series, usually finely cancellate at 10–20X. Tubercles brown to whitish, greatly depressed, apiculate, sometimes pyramidal, 0.1–0.25 × 0.25–0.45 mm. 2n = 38. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Enum. Pl. 2: 146 1837 to Enum. Pl. 2: 146 (1837), information provided by Alan E. on email Jun. 07 2021 More details could be found in The [details]
    Definitions

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To Biodiversity Heritage Library (1 publication) (from synonym Eleocharis tenuis var. atrata (Svenson) B.Boivin)
To Biodiversity Heritage Library (50 publications) 
To European Nucleotide Archive, ENA (Eleocharis elliptica) 
To GenBank (8 nucleotides; 6 proteins) 
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Eleocharis capitata var. borealis Svenson)
To International Plant Names Index (IPNI) (from synonym Eleocharis compressa var. borealis (Svenson) Drapalik & Mohlenbr.)
To International Plant Names Index (IPNI) (from synonym Eleocharis compressa var. atrata Svenson)
To International Plant Names Index (IPNI) (from synonym Eleocharis elliptica var. atrata (Svenson) S.G.Sm.)
To International Plant Names Index (IPNI) (from synonym Eleocharis tenuis var. borealis (Svenson) Gleason)
To International Plant Names Index (IPNI) (from synonym Eleocharis tenuis var. atrata (Svenson) B.Boivin)
To International Plant Names Index (IPNI) (from synonym Eleocharis elliptica f. atrata (Svenson) Drapalik & Mohlenbr.)
To IUCN Red List (Least Concern) 
To Plants of the World Online (from synonym Eleocharis capitata var. borealis Svenson)
To Plants of the World Online (from synonym Eleocharis compressa var. atrata Svenson)
To Plants of the World Online 
To Plants of the World Online (from synonym Eleocharis compressa var. borealis (Svenson) Drapalik & Mohlenbr.)
To Plants of the World Online (from synonym Eleocharis elliptica var. atrata (Svenson) S.G.Sm.)
To Plants of the World Online (from synonym Eleocharis tenuis var. atrata (Svenson) B.Boivin)
To Plants of the World Online (from synonym Eleocharis tenuis var. borealis (Svenson) Gleason)
To Plants of the World Online (from synonym Eleocharis elliptica f. atrata (Svenson) Drapalik & Mohlenbr.)
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