svg-backdrop

Cyperaceae taxon details

Carex acutiformis Ehrh.

To LE Herbarium (Carex acutiformis LE00010153 lectotype 1)
To LE Herbarium (Carex acutiformis LE00010153 lectotype 1)

1677138  (urn:lsid:marinespecies.org:taxname:1677138)

  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. Cariceae (Tribe)
  12. Carex (Genus)
  13. Carex subg. Carex (Subgenus)
  14. Carex sect. Paludosae (Section)
  15. Carex acutiformis (Species)
accepted
Species
Carex dubia Hosé · unaccepted
Carex kochiana DC. · unaccepted
Carex olgae Regel · unaccepted
Carex palustris Suter · unaccepted
Carex rigens Thuill. · unaccepted
Carex riparia Geners. · unaccepted
Carex rufa Schrank · unaccepted
Carex spadicea Roth · unaccepted

Ordering

  • Alphabetically
  • By status

Children Display

terrestrial
Ehrhart, F. (1789). Kennzeichen feltener und unbeftimmter Pflanzen. <em>Beiträge zur Naturkunde, und den damit verwandten wissenschaften, besonders der botanik, chemie, haus- und landwirthschaft, arzneigelahrtheit und apothekerkunst.</em> 4:42-46., available online at https://www.biodiversitylibrary.org/page/31262065#page/54/mode/1up
page(s): 43 [details] 
Lectotype  LE 00010153, geounit Germany  
Lectotype LE 00010153, geounit Germany [details]
Description Rhizomes far-creeping; shoots tufted; roots brown, often dark; scales grey-brown, soon fibrous. Stems 60–150 cm, solid,...  
Description Rhizomes far-creeping; shoots tufted; roots brown, often dark; scales grey-brown, soon fibrous. Stems 60–150 cm, solid, rough, often smooth below, sharply trigonous. Leaves up to 160 cm × 5–20(–26) mm, thin, keeled or plicate, arcuate, gradually tapering to the apex, glaucous at first, becoming dull, often red-green above at the apex; hypostomous; sheaths usually red-streaked, translucent, showing an aerenchyma pattern below but not above the ligule, with the inner face hyaline-brown, persistent, usually fibrillose on splitting; apex deeply concave to V-shaped; ligule 5–15 mm, acute, with free tissue c. 0.4 mm wide. Inflorescence 1/4–1/3 the length of the stem; bracts leaf-like, exceeding the inflorescence. Male spikes 2–3, clustered, 1–5 cm; male glumes 5–6 mm, oblong to oblanceolate, dark purple-brown with pale midrib; apex obtuse to subacute. Female spikes 2–4, ± contiguous to distant, 2–6 cm, cylindric, erect, upper sessile and often male at top, lowest only shortly pedunculate; female glumes 4–5 mm, oblong-lanceolate, red- or purple-brown, with paler midrib; apex acute or with serrulate acumen. Utricles 3.5–5 mm, ellipsoid-ovoid, ribbed, finely mamillate, greyish-green; beak c. 0.5 mm, notched; stigmas 3; nut obovoid, trigonous, flat at apex. [details]

Description Laxamente cespitosa, con rizoma muy robusto, con algunos entrenudos largos. Tallos fértiles 40–100(140) cm, escábridos...  
Description Laxamente cespitosa, con rizoma muy robusto, con algunos entrenudos largos. Tallos fértiles 40–100(140) cm, escábridos en la zona superior, agudamente trígonos. Hojas (3,8)6–7,5(9,5) mm de anchura, generalmente de mayor longitud que los tallos, planas, muy ásperas en los bordes y en el nervio medio del envés, ± rígidas; lígula 4–10(20) mm, de ápice obtuso con los bordes libres, a veces algo levantados; sin antelígula; vainas basales con limbo desarrollado, solo las más inferiores escuamiformes, de color pardo claro, enteras. Bráctea inferior folíacea, de mayor longitud que la inflorescencia, no envainante. Espigas masculinas 2–3, de (9)20–40(63) mm, cilíndricas u oblongo-fusiformes, densifloras; espigas femeninas (2)3–5(20?!) mm, a veces la inferior andrógina, cilíndricas, oblongas, distantes; las inferiores femeninas en la base, erectas aunque la inferior suele ser pedunculada. Glumas masculinas oblongas u ovales, agudas, de color pardo oscuro a pardo rojizo oscuro, con margen escarioso; glumas femeninas lanceoladas o estrechamente ovales, con una larga arista que en ocasiones supera los utrículos, de color verdoso o pardo claro. Utrículos (4,5)5–6,5(7,2) × 1,5–2 mm, suberectos, de contorno estrechamente ovados o ligeramente subglobosos, densamente pubescentes, verdosos o parduscos, con los nervios muy prominentes, gradualmente atenuados en un pico de (1,5)2–2,5(3) mm, profundamente bífido, escábrido. Aquenios 2,2–3 × 1–1,5 mm, de contorno oval, trígonos, largamente estipitados, de color pardo. 2n = 112, 113, 114. [details]

Description Plants colonial; rhizomes long-creeping. Culms central, coarse, trigonous, 55–130 cm, scabrous-angled. Leaves: basal...  
Description Plants colonial; rhizomes long-creeping. Culms central, coarse, trigonous, 55–130 cm, scabrous-angled. Leaves: basal sheaths pale green to brownish or red tinged; ligules 5–14 mm; blades glaucous, M-shaped, (4.5–)5.5–12(–20) mm wide, glabrous. Inflorescences 15–35 cm; proximal 2–5 spikes pistillate, ascending; distal spikes erect; terminal 1–2(–3) spikes staminate. Pistillate scales lanceolate, acute to acuminate, glabrous, at least the proximal with scabrous awn to 3.5 mm. Perigynia ascending, ± glaucous, often strongly red dotted, ± strongly 12–18-veined, thin-walled, narrowly ovoid, flattened-trigonous, 3–4.5 × 1.4–2.1 mm, glabrous; beak 0.3–0.6 mm, emarginate to weakly bidentulate, teeth to 0.2 mm. 2n = 78. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Beitr. Naturk. [Ehrhart] 4: 43. 1789 [3-19 Apr 1789] to Beitr....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Beitr. Naturk. [Ehrhart] 4: 43. 1789 [3-19 Apr 1789] to Beitr. Naturk. 4: 43 (1789), 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. Carex acutiformis Ehrh.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677138 on 2025-12-27
Date
action
by
2023-09-06 07:28:28Z
created
Jiménez-Mejías, Pedro
2024-12-10 11:47:54Z
unchecked
db_admin
2025-03-11 11:19:03Z
changed
Márquez-Corro, José Ignacio

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


Nomenclature

original description Ehrhart, F. (1789). Kennzeichen feltener und unbeftimmter Pflanzen. <em>Beiträge zur Naturkunde, und den damit verwandten wissenschaften, besonders der botanik, chemie, haus- und landwirthschaft, arzneigelahrtheit und apothekerkunst.</em> 4:42-46., available online at https://www.biodiversitylibrary.org/page/31262065#page/54/mode/1up
page(s): 43 [details] 

basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details] 

Taxonomy

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  PDF available [request]

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] 

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Lectotype LE 00010153, geounit Germany [details]
From editor or global species database
Description Rhizomes far-creeping; shoots tufted; roots brown, often dark; scales grey-brown, soon fibrous. Stems 60–150 cm, solid, rough, often smooth below, sharply trigonous. Leaves up to 160 cm × 5–20(–26) mm, thin, keeled or plicate, arcuate, gradually tapering to the apex, glaucous at first, becoming dull, often red-green above at the apex; hypostomous; sheaths usually red-streaked, translucent, showing an aerenchyma pattern below but not above the ligule, with the inner face hyaline-brown, persistent, usually fibrillose on splitting; apex deeply concave to V-shaped; ligule 5–15 mm, acute, with free tissue c. 0.4 mm wide. Inflorescence 1/4–1/3 the length of the stem; bracts leaf-like, exceeding the inflorescence. Male spikes 2–3, clustered, 1–5 cm; male glumes 5–6 mm, oblong to oblanceolate, dark purple-brown with pale midrib; apex obtuse to subacute. Female spikes 2–4, ± contiguous to distant, 2–6 cm, cylindric, erect, upper sessile and often male at top, lowest only shortly pedunculate; female glumes 4–5 mm, oblong-lanceolate, red- or purple-brown, with paler midrib; apex acute or with serrulate acumen. Utricles 3.5–5 mm, ellipsoid-ovoid, ribbed, finely mamillate, greyish-green; beak c. 0.5 mm, notched; stigmas 3; nut obovoid, trigonous, flat at apex. [details]

Description Laxamente cespitosa, con rizoma muy robusto, con algunos entrenudos largos. Tallos fértiles 40–100(140) cm, escábridos en la zona superior, agudamente trígonos. Hojas (3,8)6–7,5(9,5) mm de anchura, generalmente de mayor longitud que los tallos, planas, muy ásperas en los bordes y en el nervio medio del envés, ± rígidas; lígula 4–10(20) mm, de ápice obtuso con los bordes libres, a veces algo levantados; sin antelígula; vainas basales con limbo desarrollado, solo las más inferiores escuamiformes, de color pardo claro, enteras. Bráctea inferior folíacea, de mayor longitud que la inflorescencia, no envainante. Espigas masculinas 2–3, de (9)20–40(63) mm, cilíndricas u oblongo-fusiformes, densifloras; espigas femeninas (2)3–5(20?!) mm, a veces la inferior andrógina, cilíndricas, oblongas, distantes; las inferiores femeninas en la base, erectas aunque la inferior suele ser pedunculada. Glumas masculinas oblongas u ovales, agudas, de color pardo oscuro a pardo rojizo oscuro, con margen escarioso; glumas femeninas lanceoladas o estrechamente ovales, con una larga arista que en ocasiones supera los utrículos, de color verdoso o pardo claro. Utrículos (4,5)5–6,5(7,2) × 1,5–2 mm, suberectos, de contorno estrechamente ovados o ligeramente subglobosos, densamente pubescentes, verdosos o parduscos, con los nervios muy prominentes, gradualmente atenuados en un pico de (1,5)2–2,5(3) mm, profundamente bífido, escábrido. Aquenios 2,2–3 × 1–1,5 mm, de contorno oval, trígonos, largamente estipitados, de color pardo. 2n = 112, 113, 114. [details]

Description Plants colonial; rhizomes long-creeping. Culms central, coarse, trigonous, 55–130 cm, scabrous-angled. Leaves: basal sheaths pale green to brownish or red tinged; ligules 5–14 mm; blades glaucous, M-shaped, (4.5–)5.5–12(–20) mm wide, glabrous. Inflorescences 15–35 cm; proximal 2–5 spikes pistillate, ascending; distal spikes erect; terminal 1–2(–3) spikes staminate. Pistillate scales lanceolate, acute to acuminate, glabrous, at least the proximal with scabrous awn to 3.5 mm. Perigynia ascending, ± glaucous, often strongly red dotted, ± strongly 12–18-veined, thin-walled, narrowly ovoid, flattened-trigonous, 3–4.5 × 1.4–2.1 mm, glabrous; beak 0.3–0.6 mm, emarginate to weakly bidentulate, teeth to 0.2 mm. 2n = 78. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Beitr. Naturk. [Ehrhart] 4: 43. 1789 [3-19 Apr 1789] to Beitr. Naturk. 4: 43 (1789), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]

Translation Loosely cespitose, with a very robust rhizome bearing some long internodes. Fertile stems 40–100(140) cm, scabrid in the upper part, sharply trigonous. Leaves (3.8)6–7.5(9.5) mm wide, usually longer than the stems, flat, very rough on the margins and on the midrib beneath, ± rigid; ligule 4–10(20) mm, with an obtuse apex and free margins, sometimes slightly raised; without an anteligule; basal sheaths with the blade developed, only the lowest scale-like, light brown, entire. Lowest bract leaf-like, longer than the inflorescence, not sheathing. Male spikes 2–3, (9)20–40(63) mm, cylindrical or oblong-fusiform, densely flowered; female spikes (2)3–5(?20) mm, sometimes the lowest androgynous, cylindrical, oblong, distant; the lower female spikes at the base, erect, although the lowest is usually pedunculate. Male glumes oblong or oval, acute, dark brown to dark reddish-brown, with a scarious margin; female glumes lanceolate or narrowly oval, with a long arista that sometimes exceeds the utricles, greenish or light brown. Utricles (4.5)5–6.5(7.2) × 1.5–2 mm, suberect, narrowly ovate in outline or slightly subglobose, densely pubescent, greenish or brownish, with very prominent nerves, gradually attenuate into a beak (1.5)2–2.5(3) mm long, deeply bifid, scabrid. Achenes 2.2–3 × 1–1.5 mm, oval in outline, trigonous, long-stipitate, brown. 2n = 112, 113, 114. [details]
    Definitions

Loading...
To Biodiversity Heritage Library (1 publication) (from synonym Edritria paludosa (Gooden.) Raf.)
To Biodiversity Heritage Library (1086 publications) (from synonym Carex riparia Geners.)
To Biodiversity Heritage Library (2 publications) (from synonym Carex kochiana DC.)
To Biodiversity Heritage Library (2 publications) (from synonym Carex olgae Regel)
To Biodiversity Heritage Library (21 publications) (from synonym Carex dubia Hosé)
To Biodiversity Heritage Library (26 publications) (from synonym Carex rigens Thuill.)
To Biodiversity Heritage Library (298 publications) (from synonym Carex intermedia Suter)
To Biodiversity Heritage Library (342 publications) 
To Biodiversity Heritage Library (5 publications) (from synonym Trasus paludosus (Gooden.) Gray)
To Biodiversity Heritage Library (56 publications) (from synonym Carex rufa Schrank)
To Biodiversity Heritage Library (586 publications) (from synonym Carex paludosa Gooden.)
To Biodiversity Heritage Library (75 publications) (from synonym Carex spadicea Roth)
To Biodiversity Heritage Library (76 publications) (from synonym Carex palustris J.F.Gmel.)
To Biodiversity Heritage Library (76 publications) (from synonym Carex palustris Suter)
To European Nucleotide Archive, ENA (Carex acutiformis) 
To European Nucleotide Archive, ENA (Carex riparia) (from synonym Carex riparia Geners.)
To International Plant Names Index (IPNI) (from synonym Carex riparia Geners.)
To International Plant Names Index (IPNI) (from synonym Edritria paludosa (Gooden.) Raf.)
To International Plant Names Index (IPNI) (from synonym Trasus paludosus (Gooden.) Gray)
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Carex kochiana DC.)
To International Plant Names Index (IPNI) (from synonym Carex olgae Regel)
To International Plant Names Index (IPNI) (from synonym Carex dubia Hosé)
To International Plant Names Index (IPNI) (from synonym Carex intermedia Suter)
To International Plant Names Index (IPNI) (from synonym Carex paludosa subsp. kochiana (DC.) Arcang.)
To International Plant Names Index (IPNI) (from synonym Carex palustris J.F.Gmel.)
To International Plant Names Index (IPNI) (from synonym Carex palustris Suter)
To International Plant Names Index (IPNI) (from synonym Carex acutiformis subsp. kochiana (DC.) K.Richt.)
To International Plant Names Index (IPNI) (from synonym Carex acutiformis var. abbreviata Beck)
To International Plant Names Index (IPNI) (from synonym Carex paludosa var. longiglumis St.-Lag.)
To International Plant Names Index (IPNI) (from synonym Carex riparia var. acutiformis (Ehrh.) Fiori)
To International Plant Names Index (IPNI) (from synonym Carex scheuchzeri J.F.Gmel.)
To International Plant Names Index (IPNI) (from synonym Carex rufa Schrank)
To International Plant Names Index (IPNI) (from synonym Carex spadicea Roth)
To International Plant Names Index (IPNI) (from synonym Carex paludosa Gooden.)
To International Plant Names Index (IPNI) (from synonym Carex rigens Thuill.)
To International Plant Names Index (IPNI) (from synonym Carex spadicea var. kochiana (DC.) Crép.)
To International Plant Names Index (IPNI) (from synonym Carex acutiformis var. kochiana (DC.) Garcke)
To International Plant Names Index (IPNI) (from synonym Carex paludosa var. kochiana (DC.) Gaudin)
To International Plant Names Index (IPNI) (from synonym Carex paludosa var. brachylepis L.C.Lamb.)
To International Plant Names Index (IPNI) (from synonym Carex paludosa var. brachystachys L.C.Lamb.)
To International Plant Names Index (IPNI) (from synonym Carex acutiformis var. spadicea (Hartm.) Asch. & Graebn.)
To International Plant Names Index (IPNI) (from synonym Carex paludosa var. spadicea Nyman)
To IUCN Red List (Least Concern) 
To LE Herbarium (Carex acutiformis LE00010153 lectotype 1) 
To LE Herbarium (Carex acutiformis LE00010154 isolectotype 1) 
To LE Herbarium (Carex acutiformis LE00010155 specimen originale 1) 
To LE Herbarium (Carex acutiformis LE00010156 specimen originale 1) 
To LE Herbarium (Carex dubia LE00010231 specimen originale 1) (from synonym Carex dubia Hosé)
To LE Herbarium (Carex rigens LE00010379 type 1) (from synonym Carex rigens Thuill.)
To LE Herbarium (Carex rigens LE00010380 type 1) (from synonym Carex rigens Thuill.)
To LE Herbarium (Carex rigens LE00010381 type 1) (from synonym Carex rigens Thuill.)
To LE Herbarium (Carex spadicea LE00010394 specimen originale 1) (from synonym Carex spadicea Roth)
To LE Herbarium (Carex spadicea LE00010395 type 1) (from synonym Carex spadicea Roth)
To Plants of the World Online (from synonym Carex palustris J.F.Gmel.)
To Plants of the World Online (from synonym Carex spadicea Roth)
To Plants of the World Online (from synonym Carex rufa Schrank)
To Plants of the World Online (from synonym Carex scheuchzeri J.F.Gmel.)
To Plants of the World Online (from synonym Carex spadicea var. kochiana (DC.) Crép.)
To Plants of the World Online (from synonym Carex riparia var. acutiformis (Ehrh.) Fiori)
To Plants of the World Online (from synonym Carex paludosa var. longiglumis St.-Lag.)
To Plants of the World Online (from synonym Carex acutiformis var. abbreviata Beck)
To Plants of the World Online (from synonym Carex acutiformis subsp. kochiana (DC.) K.Richt.)
To Plants of the World Online (from synonym Carex paludosa subsp. kochiana (DC.) Arcang.)
To Plants of the World Online (from synonym Carex intermedia Suter)
To Plants of the World Online (from synonym Carex dubia Hosé)
To Plants of the World Online (from synonym Carex kochiana DC.)
To Plants of the World Online (from synonym Carex olgae Regel)
To Plants of the World Online (from synonym Carex rigens Thuill.)
To Plants of the World Online (from synonym Carex paludosa Gooden.)
To Plants of the World Online 
To Plants of the World Online (from synonym Carex riparia Geners.)
To Plants of the World Online (from synonym Trasus paludosus (Gooden.) Gray)
To Plants of the World Online (from synonym Edritria paludosa (Gooden.) Raf.)
To Plants of the World Online (from synonym Carex paludosa var. spadicea Hartm.)
To Plants of the World Online (from synonym Carex acutiformis var. spadicea (Hartm.) Asch. & Graebn.)
To Plants of the World Online (from synonym Carex acutiformis f. depauperata (Lange) Kük.)
To Plants of the World Online (from synonym Carex acutiformis f. gracilior Kük.)
To Plants of the World Online (from synonym Carex acutiformis f. maxima (Urb.) Kük.)
To Plants of the World Online (from synonym Carex acutiformis f. minor Peterm.)
To Plants of the World Online (from synonym Carex paludosa f. depauperata Lange)
To Plants of the World Online (from synonym Carex spadicea f. maxima Urb.)
To Plants of the World Online (from synonym Carex acutiformis f. spadicea (Hartm.) Neuman)
To Plants of the World Online (from synonym Carex paludosa var. brachystachys L.C.Lamb.)
To Plants of the World Online (from synonym Carex paludosa var. brachylepis L.C.Lamb.)
To Plants of the World Online (from synonym Carex paludosa var. kochiana (DC.) Gaudin)
To Plants of the World Online (from synonym Carex acutiformis var. kochiana (DC.) Garcke)
To the Natural History Museum, London (Carex acutiformis Ehrh. BM001067092 type 1) 
To The Plant List (from synonym Carex palustris Suter)
To The Plant List (from synonym Carex paludosa var. spadicea Nyman)
To The Plant List (from synonym Carex acutiformis f. spadicea (Nyman) Asch. & Graebn.)
From editor or global species database
logo tettris logo european union logo goverment spain
This project has received funding from the European Union’s Horizon Europe Research and Innovation program within the framework of the TETTRIs Project funded under Grant Agreement Nr 101081903.
Website hosted & developed by VLIZ · contact: WoRMS team