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Cyperaceae taxon details

Rhynchospora filifolia A.Gray

1679592  (urn:lsid:marinespecies.org:taxname:1679592)

accepted
Species
terrestrial
Torrey, T. (1836). Monograph of North American Cyperaceae. <em>Annals of the Lyceum of Natural History of New York.</em> 3: 239-448., available online at https://www.biodiversitylibrary.org/page/16077350
page(s): 366 [details] 
Holotype  NY 00277848, geounit United States  
Holotype NY 00277848, geounit United States [details]
Description Plants perennial, cespitose, 30–80(–100) cm; rhizomes absent. Culms erect or excurved, mostly filiform, leafy proximal...  
Description Plants perennial, cespitose, 30–80(–100) cm; rhizomes absent. Culms erect or excurved, mostly filiform, leafy proximal to midculm, obtuse-angled to subterete, wiry. Leaves overtopped by culm; blades narrowly linear, proximally flat, 1–2 mm wide, distally tapering-triquetrous. Inflorescences: spikelet clusters 2–3(–4), distant, narrowly turbinate to hemispheric, mostly shorter than subtending setaceous bract. Spikelets red-brown, lanceoloid, 2.5–3(–4) mm, apex acuminate; fertile scale elliptic, 2–2.5 mm, acute, midrib excurrent as cusp or aristula. Flowers: bristles 6, reaching tubercle tip or beyond, antrorsely barbellate, base setose. Fruits 2–4 per spikelet, 1.5–1.7 mm, on setose pedicellar joint 0.2 mm, body with faces red-brown with pale glassy center, decurrent tubercle base; surfaces smooth; turbercle concavely triangular, 0.4–0.6 mm, setulose-ciliate. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 366 1836 to Ann. Lyceum Nat. Hist....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 366 1836 to Ann. Lyceum Nat. Hist. New York 3: 366 (1836), 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 filifolia A.Gray. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1679592 on 2025-09-12
Date
action
by
2023-09-06 07:35:01Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-09-03 11:03:03Z
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Nomenclature

original description Torrey, T. (1836). Monograph of North American Cyperaceae. <em>Annals of the Lyceum of Natural History of New York.</em> 3: 239-448., available online at https://www.biodiversitylibrary.org/page/16077350
page(s): 366 [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 
   

Holotype NY 00277848, geounit United States [details]
From editor or global species database
Description Plants perennial, cespitose, 30–80(–100) cm; rhizomes absent. Culms erect or excurved, mostly filiform, leafy proximal to midculm, obtuse-angled to subterete, wiry. Leaves overtopped by culm; blades narrowly linear, proximally flat, 1–2 mm wide, distally tapering-triquetrous. Inflorescences: spikelet clusters 2–3(–4), distant, narrowly turbinate to hemispheric, mostly shorter than subtending setaceous bract. Spikelets red-brown, lanceoloid, 2.5–3(–4) mm, apex acuminate; fertile scale elliptic, 2–2.5 mm, acute, midrib excurrent as cusp or aristula. Flowers: bristles 6, reaching tubercle tip or beyond, antrorsely barbellate, base setose. Fruits 2–4 per spikelet, 1.5–1.7 mm, on setose pedicellar joint 0.2 mm, body with faces red-brown with pale glassy center, decurrent tubercle base; surfaces smooth; turbercle concavely triangular, 0.4–0.6 mm, setulose-ciliate. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 366 1836 to Ann. Lyceum Nat. Hist. New York 3: 366 (1836), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]