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Cyperaceae taxon details

Eleocharis montevidensis Kunth

To New York Botanical Garden Steere Herbarium (Eleocharis_arenicola_NY51008_type_1)
To New York Botanical Garden Steere Herbarium (Eleocharis_arenicola_NY51008_type_1)

1680493  (urn:lsid:marinespecies.org:taxname:1680493)

  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 montevidensis (Species)
accepted
Species

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terrestrial
Not documented
Description Plants perennial, mat-forming; rhizomes evident, long, 0.7–2 mm thick, firm, cortex persistent, longer internodes 1–2...  
Description Plants perennial, mat-forming; rhizomes evident, long, 0.7–2 mm thick, firm, cortex persistent, longer internodes 1–2 cm, scales often fugaceous, 6–8 mm, membranous, not fibrous. Culms terete or cross section elliptic or rectangular, with 5–10 blunt ridges when dry, 25–50 cm × 0.5–1.2 mm, firm to hard, spongy. Leaves: distal leaf sheaths persistent, not splitting, mostly proximally dark red, distally red to brown or green, thinly papery, apex usually red-brown, often callose, subtruncate to obtuse, tooth usually present on some or all culms, to 0.9 mm. Spikelets usually ovoid or ellipsoid to subcylin-dric, rarely lanceoloid, 4–12 × (1.5–)2–3 mm, apex rounded to acute; proximal scale amplexicaulous or clasping over 3/4 of culm, entire; subproximal scale empty or with flower; floral scales appressed in fruit, 30–100, 6–10 per mm of rachilla, orange-brown, midrib regions often greenish, oblong to ovate, 1.5–2.5 × 1–1.5 mm, apex entire, broadly rounded, sometimes acute in distal part of spikelet, usually horizontally wrinkled and recurved, often carinate in distal part of spikelet. Flowers: perianth bristles 5–6(–7), stramineous to medium brown, stout, often unequal, much shorter than to equaling achene, rarely all rudimentary; stamens 3; anthers dark yellow to stramineous, 0.8–1.5 mm; styles 3-fid or some 2-fid. Achenes falling with scales, dark brown, obovoid to obpyriform, compressed trigonous, angles evident to obscure, 0.7–1 × 0.65–0.8 mm, neck absent to sometimes long, finely rugulose at 10–30X, over 20 horizontal ridges in vertical series, and/or minutely cancellate at 20–30X. Tubercles brown to whitish, pyramidal, as high as wide or sometimes greatly depressed, (0.1–)0.25–0.3 × 0.2–0.3 mm. 2n = 20. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Enum. Pl. 2: 144 1837 to Enum. Pl. 2: 144 (1837), information...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Enum. Pl. 2: 144 1837 to Enum. Pl. 2: 144 (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 montevidensis Kunth. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1680493 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

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 Plants perennial, mat-forming; rhizomes evident, long, 0.7–2 mm thick, firm, cortex persistent, longer internodes 1–2 cm, scales often fugaceous, 6–8 mm, membranous, not fibrous. Culms terete or cross section elliptic or rectangular, with 5–10 blunt ridges when dry, 25–50 cm × 0.5–1.2 mm, firm to hard, spongy. Leaves: distal leaf sheaths persistent, not splitting, mostly proximally dark red, distally red to brown or green, thinly papery, apex usually red-brown, often callose, subtruncate to obtuse, tooth usually present on some or all culms, to 0.9 mm. Spikelets usually ovoid or ellipsoid to subcylin-dric, rarely lanceoloid, 4–12 × (1.5–)2–3 mm, apex rounded to acute; proximal scale amplexicaulous or clasping over 3/4 of culm, entire; subproximal scale empty or with flower; floral scales appressed in fruit, 30–100, 6–10 per mm of rachilla, orange-brown, midrib regions often greenish, oblong to ovate, 1.5–2.5 × 1–1.5 mm, apex entire, broadly rounded, sometimes acute in distal part of spikelet, usually horizontally wrinkled and recurved, often carinate in distal part of spikelet. Flowers: perianth bristles 5–6(–7), stramineous to medium brown, stout, often unequal, much shorter than to equaling achene, rarely all rudimentary; stamens 3; anthers dark yellow to stramineous, 0.8–1.5 mm; styles 3-fid or some 2-fid. Achenes falling with scales, dark brown, obovoid to obpyriform, compressed trigonous, angles evident to obscure, 0.7–1 × 0.65–0.8 mm, neck absent to sometimes long, finely rugulose at 10–30X, over 20 horizontal ridges in vertical series, and/or minutely cancellate at 20–30X. Tubercles brown to whitish, pyramidal, as high as wide or sometimes greatly depressed, (0.1–)0.25–0.3 × 0.2–0.3 mm. 2n = 20. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Enum. Pl. 2: 144 1837 to Enum. Pl. 2: 144 (1837), information provided by Alan E. on email Jun. 07 2021 More details could be found in The [details]
To Biodiversity Heritage Library (1 publication) (from synonym Scirpus arenicolus (Torr. ex Engelm. & A.Gray) Kuntze)
To Biodiversity Heritage Library (3 publications) (from synonym Eleocharis palmeri Svenson)
To Biodiversity Heritage Library (42 publications) 
To Biodiversity Heritage Library (6 publications) (from synonym Scirpus montevidensis (Kunth) Kuntze)
To Biodiversity Heritage Library (62 publications) (from synonym Eleocharis arenicola Torr. ex Engelm. & A.Gray)
To Biodiversity Heritage Library (7 publications) (from synonym Limnochloa montevidensis (Kunth) Nees)
To European Nucleotide Archive, ENA (Eleocharis montevidensis) 
To GenBank (9 nucleotides; 4 proteins) 
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Eleocharis arenicola Torr. ex Engelm. & A.Gray)
To International Plant Names Index (IPNI) (from synonym Eleocharis palmeri Svenson)
To International Plant Names Index (IPNI) (from synonym Limnochloa montevidensis (Kunth) Nees)
To International Plant Names Index (IPNI) (from synonym Trichophyllum arenicola (Torr. ex Engelm. & A.Gray) House)
To International Plant Names Index (IPNI) (from synonym Scirpus arenicola (Torr. ex Engelm. & A.Gray) Kuntze)
To International Plant Names Index (IPNI) (from synonym Eleocharis montana subsp. montevidensis (Kunth) Osten)
To International Plant Names Index (IPNI) (from synonym Scirpus montevidensis (Kunth) Kuntze)
To International Plant Names Index (IPNI) (from synonym Eleocharis montevidensis f. angustior S.González & McVaugh)
To New York Botanical Garden Steere Herbarium (Eleocharis_arenicola_NY51008_type_1) (from synonym Eleocharis arenicola Torr. ex Engelm. & A.Gray)
To Plants of the World Online (from synonym Eleocharis palmeri Svenson)
To Plants of the World Online (from synonym Limnochloa montevidensis (Kunth) Nees)
To Plants of the World Online 
To Plants of the World Online (from synonym Eleocharis arenicola Torr. ex Engelm. & A.Gray)
To Plants of the World Online (from synonym Eleocharis montevidensis f. angustior S.González & McVaugh)
To Plants of the World Online (from synonym Eleocharis montana subsp. montevidensis (Kunth) Osten)
To Plants of the World Online (from synonym Scirpus arenicola (Torr. ex Engelm. & A.Gray) Kuntze)
To Plants of the World Online (from synonym Scirpus montevidensis (Kunth) Kuntze)
To Plants of the World Online (from synonym Trichophyllum arenicola (Torr. ex Engelm. & A.Gray) House)
To the Natural History Museum, London (Eleocharis arenicola Torr. ex Engelm. & A.Gray BM001042137 type 1) (from synonym Eleocharis arenicola Torr. ex Engelm. & A.Gray)
To The Plant List (from synonym Scirpus arenicolus (Torr. ex Engelm. & A.Gray) Kuntze)
To The Plant List (from synonym Eleocharis montevidensis var. montevidensis Kunth)
From editor or global species database
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