Cyperaceae taxon details
Carex pseudocyperus L.
1678047 (urn:lsid:marinespecies.org:taxname:1678047)
accepted
Species
Carex pseudocyperus f. pseudocyperus L. · unaccepted
Trasus chlorostachyos Gray · unaccepted
- Variety Carex pseudocyperus var. haenkeana (C.Presl) Kük.
- Variety Carex pseudocyperus var. pseudocyperus L.
- Forma Carex pseudocyperus f. minor Hampe accepted as Carex pseudocyperus var. pseudocyperus L.
- Forma Carex pseudocyperus f. multispicula Lepage accepted as Carex pseudocyperus var. pseudocyperus L.
- Forma Carex pseudocyperus f. novae-selandiae (Boeckeler) Kük. accepted as Carex fascicularis Sol. ex Boott
- Forma Carex pseudocyperus f. pallidior Kük. accepted as Carex pseudocyperus var. pseudocyperus L.
- Forma Carex pseudocyperus f. pseudocyperus L. accepted as Carex pseudocyperus L.
- Subspecies Carex pseudocyperus subsp. haenkeana (C.Presl) Kük. accepted as Carex pseudocyperus var. haenkeana (C.Presl) Kük.
- Subspecies Carex pseudocyperus subsp. platygluma C.B.Clarke ex Kük. accepted as Carex polystachya var. polystachya Sw. ex Wahlenb.
- Variety Carex pseudocyperus var. americana Hochst. ex L.H.Bailey accepted as Carex pseudocyperus var. pseudocyperus L.
- Variety Carex pseudocyperus var. brachystachya Regel & Maack accepted as Carex capricornis Meinsh. ex Maxim.
- Variety Carex pseudocyperus var. cognata (Kunth) Boott accepted as Carex cognata Kunth
- Variety Carex pseudocyperus var. comosa (Boott) Boott accepted as Carex comosa Boott
- Variety Carex pseudocyperus var. fascicularis (Sol. ex Boott) Boott accepted as Carex fascicularis Sol. ex Boott
- Variety Carex pseudocyperus var. furcata Kük. accepted as Carex pseudocyperus var. pseudocyperus L.
- Variety Carex pseudocyperus var. interrupta L.C.Lamb. accepted as Carex pseudocyperus var. pseudocyperus L.
- Variety Carex pseudocyperus var. lechleri Boott accepted as Carex pseudocyperus var. haenkeana (C.Presl) Kük.
- Variety Carex pseudocyperus var. libanoticus Mouterde accepted as Carex pseudocyperus var. pseudocyperus L.
- Variety Carex pseudocyperus var. mazoviensis Zalewski accepted as Carex pseudocyperus var. pseudocyperus L.
- Variety Carex pseudocyperus var. polysticha (Boeckeler) Kük. accepted as Carex polysticha Boeckeler
- Forma Carex pseudocyperus f. denticulata Y.L.Chang & Y.L.Yang (uncertain > unassessed)
- Subspecies Carex pseudocyperus subsp. acrifolia (V.I.Krecz.) Kukkonen (uncertain > unassessed)
- Subspecies Carex pseudocyperus subsp. afghanica Kukkonen (uncertain > unassessed)
- Variety Carex pseudocyperus var. solida T.J.Sørensen (uncertain > unassessed)
- Variety Carex pseudocyperus var. solida T.J.Sörensen (uncertain > unassessed)
terrestrial
Linnaeus, C. (1753). Species plantarum, exhibentes plantas rite cognitas ad genera relatas cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. Vol 2. Salvius, Stockholm., available online at https://www.biodiversitylibrary.org/page/358580
page(s): 978 [details]
page(s): 978 [details]
Description Plants densely to loosely cespitose; rhizomes short, no more than 10 cm. Culms trigonous in cross section, 25–100 cm,...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Sp. Pl. 978 1753 to Sp. Pl. : 978 (1753), information provided by...
Description Plants densely to loosely cespitose; rhizomes short, no more than 10 cm. Culms trigonous in cross section, 25–100 cm, scabrous distally. Leaves: basal sheaths pale brown (rarely faintly red tinged); ligules usually much longer than wide; blades mid to dark green, flat to W-shaped, 4–13 mm wide, glabrous. Inflorescences 4–15 cm; proximal bract 12–55 cm, greatly exceeding inflorescence; proximal 2–5 spikes pistillate, erect or the proximal pendent, cylindric, 9–12 mm thick; terminal 1 spike staminate or, rarely, gynaecandrous, androgynous, or mixed. Pistillate scales lanceolate-acuminate, 2.5–8.6 × 0.3–0.6 mm, the distal shorter and the proximal longer than perigynia, margins ciliate, apex scabrous-awned. Staminate scales scabrous-awned, sometimes also ciliate-margined. Perigynia spreading to reflexed at maturity, strongly 12–20-veined, veins usually separated by less than 2 times their width, confluent at or proximal to mid beak (except for 2 prominent lateral), tightly investing achene, narrowly elliptic to lanceolate, 3.4–6.1 × 1–1.7 mm, leathery, apex gradually tapered; beak poorly defined, 1.2–2.2 mm, strongly bidentate, teeth straight or slightly out-curved, 0.7–1.2(–1.4) mm. Stigmas 3. Achenes pale brown, trigonous, smooth. 2n = 66. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Sp. Pl. 978 1753 to Sp. Pl. : 978 (1753), information provided by...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Sp. Pl. 978 1753 to Sp. Pl. : 978 (1753), information provided by Alan E. on email Jun. 07 2021 More details could be found in The Plant L [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex pseudocyperus L.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1678047 on 2025-09-14
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2024-12-10 11:47:54Z
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Nomenclature
original description
Linnaeus, C. (1753). Species plantarum, exhibentes plantas rite cognitas ad genera relatas cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. Vol 2. Salvius, Stockholm., available online at https://www.biodiversitylibrary.org/page/358580
page(s): 978 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 978 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
Other
additional source
Li, B. Z.; Zhang, S. R. (2024). An updated species checklist and taxonomic synopsis of Cyperaceae in China. <em>Biodiversity Science.</em> 32(7): 24106., available online at https://doi.org/10.17520/biods.2024106 [details] Available for editors 
[request]
[request]
Present Inaccurate Introduced: alien Containing type locality
Syntype L 0052715 [details]
From editor or global species database
Description Plants densely to loosely cespitose; rhizomes short, no more than 10 cm. Culms trigonous in cross section, 25–100 cm, scabrous distally. Leaves: basal sheaths pale brown (rarely faintly red tinged); ligules usually much longer than wide; blades mid to dark green, flat to W-shaped, 4–13 mm wide, glabrous. Inflorescences 4–15 cm; proximal bract 12–55 cm, greatly exceeding inflorescence; proximal 2–5 spikes pistillate, erect or the proximal pendent, cylindric, 9–12 mm thick; terminal 1 spike staminate or, rarely, gynaecandrous, androgynous, or mixed. Pistillate scales lanceolate-acuminate, 2.5–8.6 × 0.3–0.6 mm, the distal shorter and the proximal longer than perigynia, margins ciliate, apex scabrous-awned. Staminate scales scabrous-awned, sometimes also ciliate-margined. Perigynia spreading to reflexed at maturity, strongly 12–20-veined, veins usually separated by less than 2 times their width, confluent at or proximal to mid beak (except for 2 prominent lateral), tightly investing achene, narrowly elliptic to lanceolate, 3.4–6.1 × 1–1.7 mm, leathery, apex gradually tapered; beak poorly defined, 1.2–2.2 mm, strongly bidentate, teeth straight or slightly out-curved, 0.7–1.2(–1.4) mm. Stigmas 3. Achenes pale brown, trigonous, smooth. 2n = 66. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Sp. Pl. 978 1753 to Sp. Pl. : 978 (1753), information provided by Alan E. on email Jun. 07 2021 More details could be found in The Plant L [details]
To Biodiversity Heritage Library (281 publications)
To Biodiversity Heritage Library (3 publications) (from synonym Trasus chlorostachyos Gray)
To European Nucleotide Archive, ENA (Carex pseudocyperus)
To GenBank (42 nucleotides; 28 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Trasus chlorostachyos Gray)
To IUCN Red List (Least Concern)
To Plants of the World Online (from synonym Trasus chlorostachyos Gray)
To Plants of the World Online
To The Plant List (from synonym Carex pseudocyperus f. pseudocyperus L.)
To Biodiversity Heritage Library (3 publications) (from synonym Trasus chlorostachyos Gray)
To European Nucleotide Archive, ENA (Carex pseudocyperus)
To GenBank (42 nucleotides; 28 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Trasus chlorostachyos Gray)
To IUCN Red List (Least Concern)
To Plants of the World Online (from synonym Trasus chlorostachyos Gray)
To Plants of the World Online
To The Plant List (from synonym Carex pseudocyperus f. pseudocyperus L.)
