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Cyperaceae taxon details

Eleocharis kamtschatica (C.A.Mey.) Kom.

To Moscow University Herbarium (Eleocharis triflora MW0591519 isotype 1)
To Moscow University Herbarium (Eleocharis triflora MW0591519 isotype 1)

1681112  (urn:lsid:marinespecies.org:taxname:1681112)

  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 kamtschatica (Species)
accepted
Species

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terrestrial
Not documented
Description Plants perennial, mat-forming; rhizomes evident, sometimes vertical, long, 0.5–1.5 mm thick, soft, cortex often breaking...  
Description Plants perennial, mat-forming; rhizomes evident, sometimes vertical, long, 0.5–1.5 mm thick, soft, cortex often breaking loose, longer internodes 1–3 cm, scales fugaceous, 4–7 mm, thinly membranous, not fibrous. Culms terete, often with to 10 blunt ridges when dry, 4–60 cm × 0.3–1.8 mm, soft to firm, internally spongy. Leaves: distal leaf sheaths persistent, not splitting, proximally red (to stramineous), distally red or stramineous or green, not callose, membranous, apex usually pale red, broadly obtuse to narrowly acuminate, tooth absent. Spikelets ovoid to lanceoloid, 4–20 × 3–6 mm, apex acute; proximal scale amplexicaulous, entire; subproximal scale with flower; floral scales often spreading in fruit, 5–20, 1–2 per mm of rachilla, entirely blackish brown to red-brown, or midrib regions paler, broadly ovate, 2.5–5 × 2–2.5 mm, apex rounded to subacute, not carinate. Flowers: perianth bristles 0–6(–9), light brown to stramineous, slender to stout, often unequal, much shorter than to equaling achene; stamens 3; anthers yellow-brown to medium brown, 1.3–2.5 mm; styles 2-fid. Achenes not persistent, yellow, stramineous, or medium brown, obovoid (mostly very broadly so), thickly biconvex, angles obscure, 1–1.5(–1.9) × 1–1.6 mm, apex truncate, neck absent or very short, finely reticulate at 20–30X, or rugulose with 20 or more horizontal ridges in a vertical series, or sometimes smooth. Tubercles whitish, outline subrectangular or trapezoidal, sometimes broadly rounded, seldom pyramidal, (0.5–) 0.7–1.5 × (0.5–)0.8–1.4 mm, usually with vertical rows of depressions (cancellate). 2n = 12. [details]

Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (C.A.Mey.) Kom. to Kom., information provided by Alan E. on...  
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (C.A.Mey.) Kom. to Kom., information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List v.1. [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Eleocharis kamtschatica (C.A.Mey.) Kom.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1681112 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] 

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 
   

From editor or global species database
Description Plants perennial, mat-forming; rhizomes evident, sometimes vertical, long, 0.5–1.5 mm thick, soft, cortex often breaking loose, longer internodes 1–3 cm, scales fugaceous, 4–7 mm, thinly membranous, not fibrous. Culms terete, often with to 10 blunt ridges when dry, 4–60 cm × 0.3–1.8 mm, soft to firm, internally spongy. Leaves: distal leaf sheaths persistent, not splitting, proximally red (to stramineous), distally red or stramineous or green, not callose, membranous, apex usually pale red, broadly obtuse to narrowly acuminate, tooth absent. Spikelets ovoid to lanceoloid, 4–20 × 3–6 mm, apex acute; proximal scale amplexicaulous, entire; subproximal scale with flower; floral scales often spreading in fruit, 5–20, 1–2 per mm of rachilla, entirely blackish brown to red-brown, or midrib regions paler, broadly ovate, 2.5–5 × 2–2.5 mm, apex rounded to subacute, not carinate. Flowers: perianth bristles 0–6(–9), light brown to stramineous, slender to stout, often unequal, much shorter than to equaling achene; stamens 3; anthers yellow-brown to medium brown, 1.3–2.5 mm; styles 2-fid. Achenes not persistent, yellow, stramineous, or medium brown, obovoid (mostly very broadly so), thickly biconvex, angles obscure, 1–1.5(–1.9) × 1–1.6 mm, apex truncate, neck absent or very short, finely reticulate at 20–30X, or rugulose with 20 or more horizontal ridges in a vertical series, or sometimes smooth. Tubercles whitish, outline subrectangular or trapezoidal, sometimes broadly rounded, seldom pyramidal, (0.5–) 0.7–1.5 × (0.5–)0.8–1.4 mm, usually with vertical rows of depressions (cancellate). 2n = 12. [details]

Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (C.A.Mey.) Kom. to Kom., information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List v.1. [details]
    Definitions

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To Biodiversity Heritage Library (1 publication) (from synonym Eleocharis komarovii Zinserl.)
To Biodiversity Heritage Library (1 publication) (from synonym Eleocharis sachalinensis (Meinsh.) Kom.)
To Biodiversity Heritage Library (10 publications) (from synonym Scirpus kamtschaticus C.A.Mey.)
To Biodiversity Heritage Library (14 publications) 
To Biodiversity Heritage Library (17 publications) (from synonym Scirpus mitratus Franch. & Sav.)
To Biodiversity Heritage Library (18 publications) (from synonym Eleocharis mitrata Makino)
To Biodiversity Heritage Library (2 publications) (from synonym Eleocharis savatieri C.B.Clarke ex H.Lév.)
To Biodiversity Heritage Library (3 publications) (from synonym Eleocharis triflora Kom.)
To Biodiversity Heritage Library (4 publications) (from synonym Scirpus sachalinensis Meinsh.)
To Biodiversity Heritage Library (5 publications) (from synonym Scirpus pileatus (A.Gray) Franch. & Sav.)
To Biodiversity Heritage Library (7 publications) (from synonym Eleocharis pileata A.Gray)
To European Nucleotide Archive, ENA (Eleocharis kamtschatica) 
To GenBank (8 nucleotides; 5 proteins) 
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Eleocharis glehnii Kom.)
To International Plant Names Index (IPNI) (from synonym Eleocharis pileata A.Gray)
To International Plant Names Index (IPNI) (from synonym Eleocharis komarovii Zinserl.)
To International Plant Names Index (IPNI) (from synonym Eleocharis mitrata Makino)
To International Plant Names Index (IPNI) (from synonym Eleocharis sachalinensis (Meinsh.) Kom.)
To International Plant Names Index (IPNI) (from synonym Eleocharis savatieri C.B.Clarke ex H.Lév.)
To International Plant Names Index (IPNI) (from synonym Eleocharis triflora Kom.)
To International Plant Names Index (IPNI) (from synonym Scirpus camtschaticus Kunth)
To International Plant Names Index (IPNI) (from synonym Scirpus pileatus (A.Gray) Franch. & Sav.)
To International Plant Names Index (IPNI) (from synonym Scirpus sachalinensis Meinsh.)
To International Plant Names Index (IPNI) (from synonym Scirpus kamtschaticus C.A.Mey.)
To International Plant Names Index (IPNI) (from synonym Scirpus mitratus Franch. & Sav.)
To International Plant Names Index (IPNI) (from synonym Eleocharis kamtschatica var. komarovii (Zinserl.) Vorosch.)
To International Plant Names Index (IPNI) (from synonym Eleocharis kamtschatica var. reducta Ohwi)
To International Plant Names Index (IPNI) (from synonym Eleocharis kamtschatica var. komarovii (Zinserl.) A.E.Kozhevn.)
To Moscow University Herbarium (Eleocharis triflora MW0591519 isotype 1) (from synonym Eleocharis triflora Kom.)
To Plants of the World Online (from synonym Scirpus camtschaticus Kunth)
To Plants of the World Online (from synonym Scirpus kamtschaticus C.A.Mey.)
To Plants of the World Online (from synonym Scirpus mitratus Franch. & Sav.)
To Plants of the World Online (from synonym Eleocharis triflora Kom.)
To Plants of the World Online (from synonym Eleocharis sachalinensis (Meinsh.) Kom.)
To Plants of the World Online (from synonym Eleocharis savatieri C.B.Clarke ex H.Lév.)
To Plants of the World Online (from synonym Eleocharis mitrata Makino)
To Plants of the World Online (from synonym Eleocharis pileata A.Gray)
To Plants of the World Online (from synonym Eleocharis komarovii Zinserl.)
To Plants of the World Online (from synonym Eleocharis glehnii Kom.)
To Plants of the World Online 
To Plants of the World Online (from synonym Eleocharis kamtschatica f. reducta (Ohwi) Ohwi)
To Plants of the World Online (from synonym Eleocharis kamtschatica var. reducta Ohwi)
To Plants of the World Online (from synonym Eleocharis kamtschatica var. komarovii (Zinserl.) Vorosch.)
To Plants of the World Online (from synonym Scirpus pileatus (A.Gray) Franch. & Sav.)
To Plants of the World Online (from synonym Scirpus sachalinensis Meinsh.)
To The Plant List (from synonym Eleocharis kamtschatica f. kamtschatica (C.A.Mey.) Kom.)
To The Plant List (from synonym Eleocharis kamtschatica var. komarovii (Zinserl.) A.E.Kozhevn.)
To US Herbarium (Eleocharis pileata US2612660 type 1) (from synonym Eleocharis pileata A.Gray)
From editor or global species database
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