Cyperaceae taxon details
Carex extensa Gooden.
425961 (urn:lsid:marinespecies.org:taxname:425961)
accepted
Species
Carex arcuata Wahlenb. · unaccepted
Carex balbisii Schkuhr ex Balb. · unaccepted
Carex extensa f. balbisii (Schkuhr ex Balb.) Kük. · unaccepted
Carex extensa f. gynobasis Ciocârlan · unaccepted
Carex extensa f. pumila (Andersson) Kük. · unaccepted
Carex extensa f. tenuifolia (DC.) Kük. · unaccepted
Carex extensa subsp. sacalinensis Ciocârlan · unaccepted
Carex extensa subsp. viestina Fen. · unaccepted
Carex extensa var. balbisii (Schkuhr ex Balb.) Rchb. · unaccepted
Carex extensa var. graeca Hausskn. · unaccepted
Carex extensa var. nana Husn. · unaccepted
Carex extensa var. nervosa (Desf.) Nyman · unaccepted
Carex extensa var. puberula Merino · unaccepted
Carex extensa var. pumila Andersson · unaccepted
Carex extensa var. tenuifolia DC. · unaccepted
Carex nervosa Desf. · unaccepted
Carex peruviana Dombey ex Boott · unaccepted
Trasus extensus (Gooden.) Gray · unaccepted
- Variety Carex extensa var. balbisii (Schkuhr ex Spreng.) Nyman
- Forma Carex extensa f. balbisii (Schkuhr ex Balb.) Kük. accepted as Carex extensa Gooden.
- Forma Carex extensa f. gynobasis Ciocârlan accepted as Carex extensa Gooden.
- Forma Carex extensa f. pumila (Andersson) Kük. accepted as Carex extensa Gooden.
- Forma Carex extensa f. tenuifolia (DC.) Kük. accepted as Carex extensa Gooden.
- Subspecies Carex extensa subsp. sacalinensis Ciocârlan accepted as Carex extensa Gooden.
- Subspecies Carex extensa subsp. viestina Fen. accepted as Carex extensa Gooden.
- Variety Carex extensa var. balbisii (Schkuhr ex Balb.) Rchb. accepted as Carex extensa Gooden.
- Variety Carex extensa var. ecklonii (Nees) Kük. accepted as Carex ecklonii Nees
- Variety Carex extensa var. graeca Hausskn. accepted as Carex extensa Gooden.
- Variety Carex extensa var. nana Husn. accepted as Carex extensa Gooden.
- Variety Carex extensa var. nervosa (Desf.) Nyman accepted as Carex extensa Gooden.
- Variety Carex extensa var. pseudohornschuchiana Murr accepted as Carex rieseana Figert represented as Carex ×rieseana Figert
- Variety Carex extensa var. puberula Merino accepted as Carex extensa Gooden.
- Variety Carex extensa var. pumila Andersson accepted as Carex extensa Gooden.
- Variety Carex extensa var. tenuifolia DC. accepted as Carex extensa Gooden.
- Variety Carex extensa var. vixdentata Kük. accepted as Carex peruviana J.Presl & C.Presl
Goodenough, S. (1794). Observations on the British Species of Carex. <em>Transactions of the Linnean Society of London.</em> 2: 175, t. 21, f. 7., available online at https://www.biodiversitylibrary.org/page/760024 [details]
Description Rhizomes short, with shoots often forming large tufts; roots red-brown, often stained black, and scales dark grey-brown,...
Description Densamente cespitosa, con rizoma endeble. Tallos fértiles (6)15-65(80) cm, trígonos, con los ángulos romos. Hojas 0,5-2...
Description Densely tufted, with a slender rhizome. Fertile stems (6)15–65(80) cm, trigonous, with blunt angles. Leaves 0.5–2 mm...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Trans. Linn. Soc. London 2: 175, t. 21, f. 7. 1794 [1 May 1794] to...
Description Rhizomes short, with shoots often forming large tufts; roots red-brown, often stained black, and scales dark grey-brown, becoming ± fibrous. Stems 5–40 cm, rigid, bluntly trigonous, sometimes arcuate and tough. Leaves 5–35 cm × 2–3 mm, rigid, thick, ± keeled, deeply channelled and often inrolled, gradually tapering to a blunt apex, grey-green or glaucous, turning red-brown then grey when dying, overwintering; hypostomous; sheaths orange-brown, occasionally red-tinged, darkening and often blackish and fibrous in decay, with a narrow hyaline inner face and concave apex; ligule 2 mm, rounded and slightly tubular. The inflorescence is 1/3–1/2 the length of the stem, with leaf-like bracts usually reflexed and far exceeding the inflorescence. Male spike usually solitary, rarely 2–3, 5–25 mm, with male glumes 3–4 mm, obovate-elliptic, red-brown with a paler midrib, apex obtuse. Female spikes 2–4, contiguous or with the lowest sometimes distant, 5–20 mm, subglobose to cylindric; peduncles ensheathed, the lowest ± exserted; female glumes 1.5–2 mm, broadly ovate, red-brown with a pale, often green midrib and ± hyaline margins, apex mucronate. Utricles 3–4 mm, ovoid or ellipsoid, grey-green or brownish with purplish blotches, weakly ribbed; beak 0.5–0.75 mm, smooth, notched; stigmas 3; nut broadly ovoid, trigonous. [details]
Description Densamente cespitosa, con rizoma endeble. Tallos fértiles (6)15-65(80) cm, trígonos, con los ángulos romos. Hojas 0,5-2...
Description Densamente cespitosa, con rizoma endeble. Tallos fértiles (6)15-65(80) cm, trígonos, con los ángulos romos. Hojas 0,5-2 mm de anchura, pero hasta de 4 mm de anchura cuando planas, de mayor longitud que los tallos, generalmente lisas, enrolladas o canaliculadas, muy raramente planas, ± rígidas, verdes o algo glaucas; lígula hasta 2 mm, cuya anchura puede superar la del limbo, de ápice redondeado y márgenes libres frecuentemente teñidos de rojo; sin antelígula; vainas basales de color pardo claro u obscuro, enteras, muy raramente algo fibrosas. Bráctea inferior similar a las hojas, de longitud mucho mayor que la inflorescencia. Espiga masculina solitaria, de 6-20(26) × 1-3(4) mm, cortamente cilíndrica o fusiforme; espigas femeninas 3-5, de 6-20(27) × 3-5,5(7) mm, ovoides, aproximadas a la masculina, aunque a veces la inferior esta separada, erectas. Glumas masculinas ovales u oblongas, de ápice variable y color pardo claro u obscuro; glumas femeninas ± ovales, generalmente agudas, a veces cortamente mucronadas, de color pardo claro u obscuro. Utrículos 3-3,6 × 1,1-1,5 mm, de contorno oval, suberectos (rara vez erecto-patentes o casi patentes), plurinerviados, mates, atenuados en un pico de 0,5-0,6 mm, cortamente bidentado, liso. Aquenios 1,9-2,5 × 1-1,3 mm, de contorno elíptico, trígonos. 2n = 60. [details]
Description Densely tufted, with a slender rhizome. Fertile stems (6)15–65(80) cm, trigonous, with blunt angles. Leaves 0.5–2 mm...
Description Densely tufted, with a slender rhizome. Fertile stems (6)15–65(80) cm, trigonous, with blunt angles. Leaves 0.5–2 mm wide, but up to 4 mm wide when flat, longer than the stems, generally smooth, rolled or canaliculate, very rarely flat, ± rigid, green or somewhat glaucous; ligule up to 2 mm, its width sometimes exceeding that of the blade, with rounded apex and free margins frequently tinged red; without contraligule; basal sheaths light or dark brown, entire, very rarely somewhat fibrous. Lowest bract similar to the leaves, much longer than the inflorescence. Male spike solitary, (6)6–20(26) × 1–3(4) mm, shortly cylindrical or fusiform; female spikes 3–5, 6–20(27) × 3–5.5(7) mm, ovoid, close to the male spike, though sometimes the lowest one separated, erect. Male glumes oval or oblong, with variable apex and light or dark brown color; female glumes ± oval, generally acute, sometimes shortly mucronate, light or dark brown. Utricles 3–3.6 × 1.1–1.5 mm, oval in outline, suberect (rarely erect-patent or almost patent), plurinerved, dull, attenuate into a beak 0.5–0.6 mm, shortly bidentate, smooth. Achenes 1.9–2.5 × 1–1.3 mm, elliptic in outline, trigonous. 2n = 60. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Trans. Linn. Soc. London 2: 175, t. 21, f. 7. 1794 [1 May 1794] to...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Trans. Linn. Soc. London 2: 175, t. 21, f. 7. 1794 [1 May 1794] to Trans. Linn. Soc. London 2: 175 (1794), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
Cyperaceae Working Group. (2026). [see How to cite]. Global Cyperaceae Database. Carex extensa Gooden.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=425961 on 2026-05-26
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Nomenclature
original description
Goodenough, S. (1794). Observations on the British Species of Carex. <em>Transactions of the Linnean Society of London.</em> 2: 175, t. 21, f. 7., available online at https://www.biodiversitylibrary.org/page/760024 [details]
basis of record Provoost, S.; Bonte, D. (Ed.) (2004). Animated dunes: a view of biodiversity at the Flemish coast [Levende duinen: een overzicht van de biodiversiteit aan de Vlaamse kust]. Mededelingen van het Instituut voor Natuurbehoud, 22. Instituut voor Natuurbehoud: Brussel, Belgium. ISBN 90-403-0205-7. 416, ill., appendices pp. (look up in IMIS) [details]
basis of record Provoost, S.; Bonte, D. (Ed.) (2004). Animated dunes: a view of biodiversity at the Flemish coast [Levende duinen: een overzicht van de biodiversiteit aan de Vlaamse kust]. Mededelingen van het Instituut voor Natuurbehoud, 22. Instituut voor Natuurbehoud: Brussel, Belgium. ISBN 90-403-0205-7. 416, ill., appendices pp. (look up in IMIS) [details]
Taxonomy
taxonomy source
Luceño, M., Castroviejo, S., Jiménez-Mejías, P. (2008). Cyperaceae. In: Castroviejo, Luceño, M., Galán, A., Jiménez-Mejías, P., Cabezas, F., Medina, L. (eds). Flora iberica. Plantas vasculares de la Península Ibérica e Islas Baleares. Vol. XVIII. Madrid: CSIC., available online at https://bibdigital.rjb.csic.es/records/item/12958-flora-iberica-vol-18-cyperaceae-pontederiaceae?offset=, http://www.floraiberica.es/PHP/familias_lista_.php?familia=Cyperaceae [details]
taxonomy source Jermy, A.C.; Simpson, D.A.; Foley, M.J.Y.; Porter, M.S. (2007). Sedges of the British Isles. 554 pp. Botanical Society of Britain & Ireland, United Kingdom. [details] Available for editors
[request]
taxonomy source Jermy, A.C.; Simpson, D.A.; Foley, M.J.Y.; Porter, M.S. (2007). Sedges of the British Isles. 554 pp. Botanical Society of Britain & Ireland, United Kingdom. [details] Available for editors
[request]Other
additional source
Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Description Rhizomes short, with shoots often forming large tufts; roots red-brown, often stained black, and scales dark grey-brown, becoming ± fibrous. Stems 5–40 cm, rigid, bluntly trigonous, sometimes arcuate and tough. Leaves 5–35 cm × 2–3 mm, rigid, thick, ± keeled, deeply channelled and often inrolled, gradually tapering to a blunt apex, grey-green or glaucous, turning red-brown then grey when dying, overwintering; hypostomous; sheaths orange-brown, occasionally red-tinged, darkening and often blackish and fibrous in decay, with a narrow hyaline inner face and concave apex; ligule 2 mm, rounded and slightly tubular. The inflorescence is 1/3–1/2 the length of the stem, with leaf-like bracts usually reflexed and far exceeding the inflorescence. Male spike usually solitary, rarely 2–3, 5–25 mm, with male glumes 3–4 mm, obovate-elliptic, red-brown with a paler midrib, apex obtuse. Female spikes 2–4, contiguous or with the lowest sometimes distant, 5–20 mm, subglobose to cylindric; peduncles ensheathed, the lowest ± exserted; female glumes 1.5–2 mm, broadly ovate, red-brown with a pale, often green midrib and ± hyaline margins, apex mucronate. Utricles 3–4 mm, ovoid or ellipsoid, grey-green or brownish with purplish blotches, weakly ribbed; beak 0.5–0.75 mm, smooth, notched; stigmas 3; nut broadly ovoid, trigonous. [details]Description Densamente cespitosa, con rizoma endeble. Tallos fértiles (6)15-65(80) cm, trígonos, con los ángulos romos. Hojas 0,5-2 mm de anchura, pero hasta de 4 mm de anchura cuando planas, de mayor longitud que los tallos, generalmente lisas, enrolladas o canaliculadas, muy raramente planas, ± rígidas, verdes o algo glaucas; lígula hasta 2 mm, cuya anchura puede superar la del limbo, de ápice redondeado y márgenes libres frecuentemente teñidos de rojo; sin antelígula; vainas basales de color pardo claro u obscuro, enteras, muy raramente algo fibrosas. Bráctea inferior similar a las hojas, de longitud mucho mayor que la inflorescencia. Espiga masculina solitaria, de 6-20(26) × 1-3(4) mm, cortamente cilíndrica o fusiforme; espigas femeninas 3-5, de 6-20(27) × 3-5,5(7) mm, ovoides, aproximadas a la masculina, aunque a veces la inferior esta separada, erectas. Glumas masculinas ovales u oblongas, de ápice variable y color pardo claro u obscuro; glumas femeninas ± ovales, generalmente agudas, a veces cortamente mucronadas, de color pardo claro u obscuro. Utrículos 3-3,6 × 1,1-1,5 mm, de contorno oval, suberectos (rara vez erecto-patentes o casi patentes), plurinerviados, mates, atenuados en un pico de 0,5-0,6 mm, cortamente bidentado, liso. Aquenios 1,9-2,5 × 1-1,3 mm, de contorno elíptico, trígonos. 2n = 60. [details]
Description Densely tufted, with a slender rhizome. Fertile stems (6)15–65(80) cm, trigonous, with blunt angles. Leaves 0.5–2 mm wide, but up to 4 mm wide when flat, longer than the stems, generally smooth, rolled or canaliculate, very rarely flat, ± rigid, green or somewhat glaucous; ligule up to 2 mm, its width sometimes exceeding that of the blade, with rounded apex and free margins frequently tinged red; without contraligule; basal sheaths light or dark brown, entire, very rarely somewhat fibrous. Lowest bract similar to the leaves, much longer than the inflorescence. Male spike solitary, (6)6–20(26) × 1–3(4) mm, shortly cylindrical or fusiform; female spikes 3–5, 6–20(27) × 3–5.5(7) mm, ovoid, close to the male spike, though sometimes the lowest one separated, erect. Male glumes oval or oblong, with variable apex and light or dark brown color; female glumes ± oval, generally acute, sometimes shortly mucronate, light or dark brown. Utricles 3–3.6 × 1.1–1.5 mm, oval in outline, suberect (rarely erect-patent or almost patent), plurinerved, dull, attenuate into a beak 0.5–0.6 mm, shortly bidentate, smooth. Achenes 1.9–2.5 × 1–1.3 mm, elliptic in outline, trigonous. 2n = 60. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Trans. Linn. Soc. London 2: 175, t. 21, f. 7. 1794 [1 May 1794] to Trans. Linn. Soc. London 2: 175 (1794), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
| Language | Name | |
|---|---|---|
| Dutch | kwelderzegge | [details] |
| English | long-bracted sedge | [details] |
| Norwegian Bokmål | vipestarr | [details] |
| Norwegian Nynorsk | vipestorr | [details] |
| Scottish Gaelic | cíb fhada | [details] |
| Swedish | segstarr | [details] |
| Welsh | hesgen-yr-heli bractau hir | [details] |
To Barcode of Life (17 barcodes)
To Biodiversity Heritage Library (2 publications) (from synonym Carex extensa var. tenuifolia DC.)
To Biodiversity Heritage Library (3 publications) (from synonym Trasus extensus (Gooden.) Gray)
To Biodiversity Heritage Library (30 publications) (from synonym Carex nervosa Desf.)
To Biodiversity Heritage Library (443 publications)
To Biodiversity Heritage Library (5 publications) (from synonym Carex peruviana Dombey ex Boott)
To Biodiversity Heritage Library (8 publications) (from synonym Carex arcuata Wahlenb.)
To European Nucleotide Archive, ENA (Carex extensa)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Trasus extensus (Gooden.) Gray)
To International Plant Names Index (IPNI) (from synonym Carex balbisii Schkuhr ex Balb.)
To International Plant Names Index (IPNI) (from synonym Carex arcuata Wahlenb.)
To International Plant Names Index (IPNI) (from synonym Carex nervosa Desf.)
To International Plant Names Index (IPNI) (from synonym Carex extensa subsp. viestina Fen.)
To International Plant Names Index (IPNI) (from synonym Carex extensa subsp. sacalinensis Ciocârlan)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. balbisii (Schkuhr ex Balb.) Rchb.)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. graeca Hausskn.)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. pumila Andersson)
To International Plant Names Index (IPNI) (from synonym Carex peruviana Dombey ex Boott)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. tenuifolia DC.)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. nervosa (Desf.) Nyman)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. puberula Merino)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. nana Husn.)
To International Plant Names Index (IPNI) (from synonym Carex extensa f. gynobasis Ciocârlan)
To IUCN Red List (Least Concern)
To NHMUK collection (Carex extensa Gooden.; NHMUK:ecatalogue:9039432)
To Plants of the World Online
To Plants of the World Online (from synonym Trasus extensus (Gooden.) Gray)
To Plants of the World Online (from synonym Carex nervosa Desf.)
To Plants of the World Online (from synonym Carex balbisii Schkuhr ex Balb.)
To Plants of the World Online (from synonym Carex arcuata Wahlenb.)
To Plants of the World Online (from synonym Carex extensa var. tenuifolia DC.)
To Plants of the World Online (from synonym Carex extensa var. pumila Andersson)
To Plants of the World Online (from synonym Carex extensa var. graeca Hausskn.)
To Plants of the World Online (from synonym Carex extensa var. balbisii (Schkuhr ex Balb.) Rchb.)
To Plants of the World Online (from synonym Carex extensa subsp. sacalinensis Ciocârlan)
To Plants of the World Online (from synonym Carex extensa subsp. viestina Fen.)
To Plants of the World Online (from synonym Carex peruviana Dombey ex Boott)
To Plants of the World Online (from synonym Carex extensa var. puberula Merino)
To Plants of the World Online (from synonym Carex extensa f. balbisii (Schkuhr ex Balb.) Kük.)
To Plants of the World Online (from synonym Carex extensa f. pumila (Andersson) Kük.)
To Plants of the World Online (from synonym Carex extensa f. tenuifolia (DC.) Kük.)
To Plants of the World Online (from synonym Carex extensa f. gynobasis Ciocârlan)
To Plants of the World Online (from synonym Carex extensa var. nana Husn.)
To Plants of the World Online (from synonym Carex extensa var. nervosa (Desf.) Nyman)
To the Natural History Museum, London (Carex extensa Gooden. BM001067069 type 1)
To ITIS
To Biodiversity Heritage Library (2 publications) (from synonym Carex extensa var. tenuifolia DC.)
To Biodiversity Heritage Library (3 publications) (from synonym Trasus extensus (Gooden.) Gray)
To Biodiversity Heritage Library (30 publications) (from synonym Carex nervosa Desf.)
To Biodiversity Heritage Library (443 publications)
To Biodiversity Heritage Library (5 publications) (from synonym Carex peruviana Dombey ex Boott)
To Biodiversity Heritage Library (8 publications) (from synonym Carex arcuata Wahlenb.)
To European Nucleotide Archive, ENA (Carex extensa)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Trasus extensus (Gooden.) Gray)
To International Plant Names Index (IPNI) (from synonym Carex balbisii Schkuhr ex Balb.)
To International Plant Names Index (IPNI) (from synonym Carex arcuata Wahlenb.)
To International Plant Names Index (IPNI) (from synonym Carex nervosa Desf.)
To International Plant Names Index (IPNI) (from synonym Carex extensa subsp. viestina Fen.)
To International Plant Names Index (IPNI) (from synonym Carex extensa subsp. sacalinensis Ciocârlan)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. balbisii (Schkuhr ex Balb.) Rchb.)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. graeca Hausskn.)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. pumila Andersson)
To International Plant Names Index (IPNI) (from synonym Carex peruviana Dombey ex Boott)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. tenuifolia DC.)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. nervosa (Desf.) Nyman)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. puberula Merino)
To International Plant Names Index (IPNI) (from synonym Carex extensa var. nana Husn.)
To International Plant Names Index (IPNI) (from synonym Carex extensa f. gynobasis Ciocârlan)
To IUCN Red List (Least Concern)
To NHMUK collection (Carex extensa Gooden.; NHMUK:ecatalogue:9039432)
To Plants of the World Online
To Plants of the World Online (from synonym Trasus extensus (Gooden.) Gray)
To Plants of the World Online (from synonym Carex nervosa Desf.)
To Plants of the World Online (from synonym Carex balbisii Schkuhr ex Balb.)
To Plants of the World Online (from synonym Carex arcuata Wahlenb.)
To Plants of the World Online (from synonym Carex extensa var. tenuifolia DC.)
To Plants of the World Online (from synonym Carex extensa var. pumila Andersson)
To Plants of the World Online (from synonym Carex extensa var. graeca Hausskn.)
To Plants of the World Online (from synonym Carex extensa var. balbisii (Schkuhr ex Balb.) Rchb.)
To Plants of the World Online (from synonym Carex extensa subsp. sacalinensis Ciocârlan)
To Plants of the World Online (from synonym Carex extensa subsp. viestina Fen.)
To Plants of the World Online (from synonym Carex peruviana Dombey ex Boott)
To Plants of the World Online (from synonym Carex extensa var. puberula Merino)
To Plants of the World Online (from synonym Carex extensa f. balbisii (Schkuhr ex Balb.) Kük.)
To Plants of the World Online (from synonym Carex extensa f. pumila (Andersson) Kük.)
To Plants of the World Online (from synonym Carex extensa f. tenuifolia (DC.) Kük.)
To Plants of the World Online (from synonym Carex extensa f. gynobasis Ciocârlan)
To Plants of the World Online (from synonym Carex extensa var. nana Husn.)
To Plants of the World Online (from synonym Carex extensa var. nervosa (Desf.) Nyman)
To the Natural History Museum, London (Carex extensa Gooden. BM001067069 type 1)
To ITIS
From editor or global species database
Hosted externally
Unreviewed
Hosted externally
