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Cyperaceae taxon details

Schoenoplectus americanus (Pers.) Volkart

To Field Museum Herbarium (Scirpus olneyi A. Gray F62592 isotype 1)
To Field Museum Herbarium (Scirpus olneyi A. Gray F62592 isotype 1)

577501  (urn:lsid:marinespecies.org:taxname:577501)

  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. Schoenoplectieae (Tribe)
  12. Schoenoplectus (Genus)
  13. Schoenoplectus americanus (Species)
accepted
Species

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brackish, terrestrial
(of Scirpus americanus Pers.) Persoon, C. H. (1805). Synopsis plantarum,seu Enchiridium botanicum, complectens enumerationem systematicam specierum hucusque cognitarum. 1: 1-546. Parisiis Lutetiorum, Tubinga., available online at https://doi.org/10.5962/bhl.title.638
page(s): 68 [details] OpenAccess publication
Description  Rhizomes 2–5 mm diam. Culms sharply trigonous, sides deeply concave throughout to rarely nearly flat, 0.4–2.5 m ×...  
Description  Rhizomes 2–5 mm diam. Culms sharply trigonous, sides deeply concave throughout to rarely nearly flat, 0.4–2.5 m × 3–10 mm. Leaves ca. 3, basal, less than 1/2 culm length; sheath fronts not pinnate-fibrillose; blades 1–3, V-shaped near base, otherwise laterally flattened-trigonous in cross section; distal blade 0.2–1.5 times as long as sheath, 25–200 × 2–8 mm. Inflorescences capitate or very rarely with 1 branch to 5 mm; proximal bract usually erect, resembling leaf blade, 1–6 cm. Spikelets 2–20, 5–15 × 3–5 mm; scales bright orange- to red- or purple-brown to straw-colored, often partly translucent, usually clearly lineolate-spotted, broadly ovate, 2.7–4 × 2–3 mm, smooth or awn sparsely spinulose, margins deciduously ciliolate, flanks of proximal scale often with several ribs, apex rounded to acute, notch 0.1–0.4 mm deep, awn not contorted, 0.2–0.6 mm. Flowers: perianth members (2–)5–6(–7), yellow-brown, bristlelike, slender to stout, often unequal to equaling 1/2 achene body, retrorsely spinulose; anthers 1.5–3 mm; styles 2-fid or 2-fid and 3-fid. Achenes brown when ripe, thickly plano-convex or unequally biconvex or compressed obtusely trigonous, obovoid, 1.8–2.8 × 1.3–2 mm; beak 0.1–0.3 mm. 2n = 78. [details]

Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (Pers.) Volkart to Volkart, information provided by Alan E....  
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (Pers.) Volkart to Volkart, information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List v [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Schoenoplectus americanus (Pers.) Volkart. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=577501 on 2025-04-20
Date
action
by
2011-07-25 13:58:46Z
created
db_admin
2023-09-05 09:21:54Z
changed
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

original description (of Scirpus americanus Pers.) Persoon, C. H. (1805). Synopsis plantarum,seu Enchiridium botanicum, complectens enumerationem systematicam specierum hucusque cognitarum. 1: 1-546. Parisiis Lutetiorum, Tubinga., available online at https://doi.org/10.5962/bhl.title.638
page(s): 68 [details] OpenAccess publication

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

new combination reference Schinz, H. & Keller, R. (1905). Flora der Schweiz : zum Gebrauche auf Exkursionen, in Schulen und beim Selbstunterricht. 1., available online at https://www.biodiversitylibrary.org/page/10476979#page/1/mode/1up
page(s): 75 [details] 

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

From editor or global species database
Description  Rhizomes 2–5 mm diam. Culms sharply trigonous, sides deeply concave throughout to rarely nearly flat, 0.4–2.5 m × 3–10 mm. Leaves ca. 3, basal, less than 1/2 culm length; sheath fronts not pinnate-fibrillose; blades 1–3, V-shaped near base, otherwise laterally flattened-trigonous in cross section; distal blade 0.2–1.5 times as long as sheath, 25–200 × 2–8 mm. Inflorescences capitate or very rarely with 1 branch to 5 mm; proximal bract usually erect, resembling leaf blade, 1–6 cm. Spikelets 2–20, 5–15 × 3–5 mm; scales bright orange- to red- or purple-brown to straw-colored, often partly translucent, usually clearly lineolate-spotted, broadly ovate, 2.7–4 × 2–3 mm, smooth or awn sparsely spinulose, margins deciduously ciliolate, flanks of proximal scale often with several ribs, apex rounded to acute, notch 0.1–0.4 mm deep, awn not contorted, 0.2–0.6 mm. Flowers: perianth members (2–)5–6(–7), yellow-brown, bristlelike, slender to stout, often unequal to equaling 1/2 achene body, retrorsely spinulose; anthers 1.5–3 mm; styles 2-fid or 2-fid and 3-fid. Achenes brown when ripe, thickly plano-convex or unequally biconvex or compressed obtusely trigonous, obovoid, 1.8–2.8 × 1.3–2 mm; beak 0.1–0.3 mm. 2n = 78. [details]

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

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LanguageName 
English three squarechair-maker's rushchairmaker's bulrushbulrush  [details]
To Barcode of Life (11 barcodes) 
To Biodiversity Heritage Library (1 publication) (from synonym Schoenoplectus chilensis (Nees & Meyen) Soják)
To Biodiversity Heritage Library (144 publications) (from synonym Scirpus olneyi A.Gray)
To Biodiversity Heritage Library (2 publications) (from synonym Scirpus novae-zealandiae Colenso)
To Biodiversity Heritage Library (24 publications) (from synonym Scirpus chilensis Nees & Meyen)
To Biodiversity Heritage Library (4 publications) (from synonym Schoenoplectus olneyi (A.Gray) Palla)
To Biodiversity Heritage Library (4 publications) (from synonym Heleophylax americanus (Pers.) Schinz & Thell.)
To Biodiversity Heritage Library (493 publications) (from synonym Scirpus triqueter Torr.)
To Biodiversity Heritage Library (543 publications) (from synonym Scirpus americanus Pers.)
To Biodiversity Heritage Library (66 publications) 
To European Nucleotide Archive, ENA (Schoenoplectus americanus) 
To Field Museum Herbarium (Scirpus olneyi A. Gray F62592 isotype 1) (from synonym Scirpus olneyi A.Gray)
To GenBank (35 nucleotides; 12 proteins) 
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Scirpus americanus Pers.)
To International Plant Names Index (IPNI) (from synonym Heleophylax americanus (Pers.) Schinz & Thell.)
To International Plant Names Index (IPNI) (from synonym Schoenoplectus chilensis (Nees & Meyen) Soják)
To International Plant Names Index (IPNI) (from synonym Schoenoplectus olneyi (A.Gray) Palla)
To International Plant Names Index (IPNI) (from synonym Scirpus chilensis Nees & Meyen)
To International Plant Names Index (IPNI) (from synonym Scirpus novae-zealandiae Colenso)
To International Plant Names Index (IPNI) (from synonym Scirpus olneyi A.Gray)
To International Plant Names Index (IPNI) (from synonym Scirpus triqueter Torr.)
To International Plant Names Index (IPNI) (from synonym Schoenoplectus americanus subsp. triangularis (Pers.) Soó)
To International Plant Names Index (IPNI) (from synonym Scirpus triqueter var. triangularis Pers.)
To International Plant Names Index (IPNI) (from synonym Scirpus americanus var. triangularis (Pers.) Beetle)
To International Plant Names Index (IPNI) (from synonym Scirpus chilensis var. longisetis (Kük.) Beetle)
To International Plant Names Index (IPNI) (from synonym Scirpus olneyi var. longisetis Kük.)
To IUCN Red List (Least Concern) 
To NMNH Extant Collection (PIC_SCAM6_1V) 
To Plants of the World Online (from synonym Scirpus americanus Pers.)
To Plants of the World Online 
To Plants of the World Online (from synonym Heleophylax americanus (Pers.) Schinz & Thell.)
To Plants of the World Online (from synonym Schoenoplectus chilensis (Nees & Meyen) Soják)
To Plants of the World Online (from synonym Schoenoplectus olneyi (A.Gray) Palla)
To Plants of the World Online (from synonym Scirpus novae-zealandiae Colenso)
To Plants of the World Online (from synonym Scirpus chilensis Nees & Meyen)
To Plants of the World Online (from synonym Scirpus triqueter Torr.)
To Plants of the World Online (from synonym Scirpus olneyi A.Gray)
To Plants of the World Online (from synonym Scirpus triqueter var. triangularis Pers.)
To Plants of the World Online (from synonym Scirpus olneyi var. longisetis Kük.)
To Plants of the World Online (from synonym Scirpus chilensis var. longisetis (Kük.) Beetle)
To Plants of the World Online (from synonym Scirpus americanus var. triangularis (Pers.) Beetle)
To Plants of the World Online (from synonym Schoenoplectus americanus subsp. triangularis (Pers.) Soó)
To Royal Botanic Garden Edinburgh Herbarium (Scirpus olneyi E00373572 isotype 1) (from synonym Scirpus olneyi A.Gray)
To Royal Botanic Gardens, Kew (Scirpus olneyi K000632417 isotype 1) (from synonym Scirpus olneyi A.Gray)
To Royal Botanic Gardens, Kew (Scirpus olneyi K001057165 type 1) (from synonym Scirpus olneyi A.Gray)
To Royal Botanic Gardens, Kew (Scirpus olneyi K001057166 isotype 1) (from synonym Scirpus olneyi A.Gray)
To The Plant List (from synonym Scirpus americanus subsp. polyphyllus (Boeck.) T.Koyama)
To The Plant List (from synonym Scirpus americanus var. americanus Pers.)
To ITIS
From editor or global species database
To Field Museum Herbarium (Scirpus olneyi A. Gray F62592 isotype 1)
To Field Museum Herbarium (Scirpus olneyi A. Gray F62592 isotype 1)
Hosted externally, from synonym
To Royal Botanic Garden Edinburgh Herbarium (Scirpus olneyi E00373572 isotype 1)
To Royal Botanic Garden Edinburgh Herbarium (Scirpus olneyi E00373572 isotype 1)
Hosted externally, from synonym
To Royal Botanic Gardens, Kew (Scirpus olneyi K000632417 isotype 1)
To Royal Botanic Gardens, Kew (Scirpus olneyi K000632417 isotype 1)
Hosted externally, from synonym
To Royal Botanic Gardens, Kew (Scirpus olneyi K001057165 type 1)
To Royal Botanic Gardens, Kew (Scirpus olneyi K001057165 type 1)
Hosted externally, from synonym
To Royal Botanic Gardens, Kew (Scirpus olneyi K001057166 isotype 1)
To Royal Botanic Gardens, Kew (Scirpus olneyi K001057166 isotype 1)
Hosted externally, from synonym
Unreviewed
To NMNH Extant Collection (PIC_SCAM6_1V)
To NMNH Extant Collection (PIC_SCAM6_1V)
Hosted externally
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