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Cyperaceae taxon details

Rhynchospora knieskernii J.Carey

To Field Museum Herbarium (Rhynchospora knieskernii Carey F667538 syntype 1)
To Field Museum Herbarium (Rhynchospora knieskernii Carey F667538 syntype 1)

1679642  (urn:lsid:marinespecies.org:taxname:1679642)

  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. Rhynchosporeae (Tribe)
  12. Rhynchospora (Genus)
  13. Rhynchospora knieskernii (Species)
accepted
Species
terrestrial
Carey, J. (1847). Description of three new Carices, and a new Species of Rhynchospora. <em>The American journal of science and arts.</em> ser. 2(4): 22-24., available online at https://www.biodiversitylibrary.org/page/27966264
page(s): 25 [details] 
Description Plants perennial, cespitose, to 50 cm; rhizomes absent. Culms erect to arching, leafy, linear to filiform, nearly...  
Description Plants perennial, cespitose, to 50 cm; rhizomes absent. Culms erect to arching, leafy, linear to filiform, nearly triangular. Leaves ascending, overtopped by culm; blades flat, linear to filiform, to 1.8 mm wide, apex distally involute, trigonous, setaceous. Inflorescences terminal and axillary, spikelet clusters 2–4, widely spaced, the lowest near plant base; clusters compact, broadly turbinate to hemispheric, to 1.5 cm wide; leafy bracts curved, setaceous, slightly to greatly overtopping subtended compounds. Spikelets dark brown, lance-ellipsoid, 2–3 mm; fertile scales 2 mm, apex acute, midrib short-excurrent or not. Flowers: perianth bristles 6, ± as long as fruit body, retrorsely barbellate. Fruits mostly 2 per spikelet, 1.5–1.9 mm; body brown with yellowish center, ellipsoid, lenticular distal to short stipe, 1–1.3 × 0.6–0.8 mm; tubercle triangular, 0.3–0.6 mm, distinctly shorter than fruit body. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Amer. J. Sci. Arts II, 4: 25 1847 to Amer. J. Sci. Arts , ser. 2, 4:...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Amer. J. Sci. Arts II, 4: 25 1847 to Amer. J. Sci. Arts , ser. 2, 4: 25 (1847), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Rhynchospora knieskernii J.Carey. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1679642 on 2025-09-11
Date
action
by
2023-09-06 07:35:01Z
created
Larridon, Isabel
2024-12-10 11:47:54Z
unchecked
db_admin
2025-09-04 07:54:22Z
checked
Marco Rosado, Nuria

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


Nomenclature

original description Carey, J. (1847). Description of three new Carices, and a new Species of Rhynchospora. <em>The American journal of science and arts.</em> ser. 2(4): 22-24., available online at https://www.biodiversitylibrary.org/page/27966264
page(s): 25 [details] 

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 
   

Isotype P 00267376, geounit New Jersey [details]
Syntype F 0075539, geounit United States [details]
From editor or global species database
Description Plants perennial, cespitose, to 50 cm; rhizomes absent. Culms erect to arching, leafy, linear to filiform, nearly triangular. Leaves ascending, overtopped by culm; blades flat, linear to filiform, to 1.8 mm wide, apex distally involute, trigonous, setaceous. Inflorescences terminal and axillary, spikelet clusters 2–4, widely spaced, the lowest near plant base; clusters compact, broadly turbinate to hemispheric, to 1.5 cm wide; leafy bracts curved, setaceous, slightly to greatly overtopping subtended compounds. Spikelets dark brown, lance-ellipsoid, 2–3 mm; fertile scales 2 mm, apex acute, midrib short-excurrent or not. Flowers: perianth bristles 6, ± as long as fruit body, retrorsely barbellate. Fruits mostly 2 per spikelet, 1.5–1.9 mm; body brown with yellowish center, ellipsoid, lenticular distal to short stipe, 1–1.3 × 0.6–0.8 mm; tubercle triangular, 0.3–0.6 mm, distinctly shorter than fruit body. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Amer. J. Sci. Arts II, 4: 25 1847 to Amer. J. Sci. Arts , ser. 2, 4: 25 (1847), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (15 publications) 
To European Nucleotide Archive, ENA (Rhynchospora knieskernii) 
To Field Museum Herbarium (Rhynchospora knieskernii Carey F667538 syntype 1) 
To Genbank 
To International Plant Names Index (IPNI) (from synonym Phaeocephalum knieskernii (J.Carey) House)
To International Plant Names Index (IPNI) 
To New York Botanical Garden Steere Herbarium (Rhynchospora_knieskernii_NY73949_type_1) 
To Plants of the World Online (from synonym Phaeocephalum knieskernii (J.Carey) House)
To Plants of the World Online 
To US Herbarium (Rhynchospora knieskernii US225691 type 1) 
From editor or global species database
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