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Cyperaceae taxon details

Eleocharis melanocarpa Torr.

1680477 (urn:lsid:marinespecies.org:taxname:1680477)

accepted
Species
terrestrial
Torrey, J. (1836). Monograph of North America Cyperaceae. <em>Annals of the Lyceum of Natural History of New York.</em> 3: 239-448., available online at https://www.biodiversitylibrary.org/page/16077440#page/7/mode/1up
page(s): 311 [details] OpenAccess publication
Holotype  NY 00051035, geounit Georgia  
Holotype NY 00051035, geounit Georgia [details]
Description Culms to 2 times wider than thick, 35–60(–70) cm × 0.5–1.3 mm, hard, usually with to 10 blunt ribs, at 20X often...  
Description Culms to 2 times wider than thick, 35–60(–70) cm × 0.5–1.3 mm, hard, usually with to 10 blunt ribs, at 20X often finely ridged and minutely granular. Leaves: distal leaf sheaths brown to reddish. Spikelets 3–12 × 3–4 mm; proximal scale amplexicaulous, 3.5–4 mm, midrib region very broad and fleshy, apex entire; subproximal scale with a flower; floral scales 30–40, 8–10 per mm of rachilla, orange-brown to stramineous, midrib region stramineous, broadly ovate, papery or sometimes membranous, 3–4 × 2 mm, apex entire, rounded. Flowers: perianth bristles present, sometimes rudimentary, brown, length variable, obscurely retrorsely spinulose; anthers brown, 1.7–2.2 mm. Achenes subdeltoid in outline, sometimes broadly obpyriform, equilaterally trigonous, angles prominent, 0.9–1.2 × 0.7–1.1 mm, apex truncate. Tubercles sessile, depressed-pyramidal, often apiculate, as wide as achene, 0.3–0.5 × 0.7–1.1 mm. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York iii. (1836) 311. to Ann. Lyceum Nat....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York iii. (1836) 311. to Ann. Lyceum Nat. Hist. New York 3: 311 (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. Eleocharis melanocarpa Torr.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1680477 on 2026-08-22
Date
action
by
2023-09-06 07:35:01Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-10-07 08:22:19Z
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Nomenclature

original description Torrey, J. (1836). Monograph of North America Cyperaceae. <em>Annals of the Lyceum of Natural History of New York.</em> 3: 239-448., available online at https://www.biodiversitylibrary.org/page/16077440#page/7/mode/1up
page(s): 311 [details] OpenAccess publication

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 00051035, geounit Georgia [details]
From editor or global species database
Description Culms to 2 times wider than thick, 35–60(–70) cm × 0.5–1.3 mm, hard, usually with to 10 blunt ribs, at 20X often finely ridged and minutely granular. Leaves: distal leaf sheaths brown to reddish. Spikelets 3–12 × 3–4 mm; proximal scale amplexicaulous, 3.5–4 mm, midrib region very broad and fleshy, apex entire; subproximal scale with a flower; floral scales 30–40, 8–10 per mm of rachilla, orange-brown to stramineous, midrib region stramineous, broadly ovate, papery or sometimes membranous, 3–4 × 2 mm, apex entire, rounded. Flowers: perianth bristles present, sometimes rudimentary, brown, length variable, obscurely retrorsely spinulose; anthers brown, 1.7–2.2 mm. Achenes subdeltoid in outline, sometimes broadly obpyriform, equilaterally trigonous, angles prominent, 0.9–1.2 × 0.7–1.1 mm, apex truncate. Tubercles sessile, depressed-pyramidal, often apiculate, as wide as achene, 0.3–0.5 × 0.7–1.1 mm. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York iii. (1836) 311. to Ann. Lyceum Nat. Hist. New York 3: 311 (1836), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
    Definitions

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