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Cyperaceae taxon details

Carex demissa Hornem.

To Genève Herbarium (Carex demissa G00191459 type 1)
To Genève Herbarium (Carex demissa G00191459 type 1)

1676810 (urn:lsid:marinespecies.org:taxname:1676810)

  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. Cyperoideae (Subfamily)
  12. Cariceae (Tribe)
  13. Carex (Genus)
  14. Carex subg. Carex (Subgenus)
  15. Carex sect. Ceratocystis (Section)
  16. Carex demissa (Species)
accepted
Species

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terrestrial
Hornemann, J.V. (1818). [Flora danica]. 9, fasc. 27 . . Havniae [Copenhagen].
page(s): 1342 [details] 
Description Cespitosa. Tallos fértiles 3,5–35(45) cm, lisos, obtusamente trígonos, frecuentemente arqueados. Hojas 1,8–4(9) mm de...  
Description Cespitosa. Tallos fértiles 3,5–35(45) cm, lisos, obtusamente trígonos, frecuentemente arqueados. Hojas 1,8–4(9) mm de anchura, de menor longitud que los tallos, lisas, planas, algo rígidas; lígula hasta 2,5 mm, de menor anchura que el limbo, de ápice redondeado o truncado; generalmente sin antelígula; vainas basales enteras, de color pardo muy claro o verde pálido. Bráctea inferior foliácea, de 2,2–12(18) cm × (1)1,3–3,2 mm, generalmente de longitud mayor que la inflorescencia. Espiga masculina solitaria, de (1)4,5–20(25) × 1,3–3,3 mm, cilíndrica o fusiforme, con un pedúnculo de 2–11(28) mm; espigas femeninas (1)2–5, de 5,5–16 × 3,5–8,5 mm, cortamente oblongas o elípticas, erectas, las superiores aproximadas, la inferior casi siempre distante, basilar o casi; largamente pedunculada. Glumas masculinas ± ovales, obtusas, generalmente de color pardo-rojizo claro; glumas femeninas ovales, agudas u obtusas, generalmente de color pardo rojizo claro, con 1–3 nervios. Utrículos 2,5–4,1(4,3) × 1–1,5(1,6) mm, los inferiores patentes, raramente algunos reflejos, los de la mitad superior de patentes a erecto-patentes y los apicales generalmente erectos, inflado-trígonos, con todos los nervios resaltados, estrechados bruscamente en un pico de (0,7)0,8–1,7(1,8) mm, liso o ligeramente escábrido, recto o ligeramente curvado (0–30° respecto del cuerpo del utrículo). Aquenios 1,1–1,5 × 0,9–1,2 mm, de contorno obovado, trígonos. 2n = 68, 70. [details]

Description Stems 5-20(-40) cm, ascending. Leaves at least as long as stems, 2-5 mm wide, green or yellowish-green, flat. Peduncle of...  
Description Stems 5-20(-40) cm, ascending. Leaves at least as long as stems, 2-5 mm wide, green or yellowish-green, flat. Peduncle of male spike 3-25 mm. Female spikes 7-13x6-8 mm, the upper usually overlapping, the lowest often very remote; lowest bract usually greatly exceed ing inflorescence, erect to deflexed. Utricles (3-)3-5-4mm, broadly ellipsoid, usually green, prominently veined, all patent or ascending, straight, gradually narrowed into a straight beak c. 1 mm usually comprising less than | of the length of the utricle. 2« = 70.  [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fors. Oecon. Plantel. ed. 2: 826 1806 to Fors. Oecon. Plantel. , ed....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fors. Oecon. Plantel. ed. 2: 826 1806 to Fors. Oecon. Plantel. , ed. 2: 826 (1806), 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 demissa Hornem.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676810 on 2026-08-12
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 Hornemann, J.V. (1818). [Flora danica]. 9, fasc. 27 . . Havniae [Copenhagen].
page(s): 1342 [details] 

basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [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 Jiménez-Mejías, P.; Luceño, M.; Martín-Bravo, S. (2014). Species boundaries within the southwest old world populations of the Carex flava group (cyperaceae). <em>Systematic Botany.</em> 39(1): 117-131., available online at https://doi.org/10.1600/036364414X677973 [details] Available for editors  PDF available [request]

taxonomy source Jiménez-Mejías, P.; Benítez-Benítez, C.; Fernández-Mazuecos, M.; Martín-Bravo, S. (2017). Cut from the same cloth: The convergent evolution of dwarf morphotypes of the Carex flava group (Cyperaceae) in Circum-Mediterranean mountains. <em>PLOS ONE.</em> 12(12): e0189769., available online at https://doi.org/10.1371/journal.pone.0189769 [details] Available for editors  PDF available [request]

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Syntype C 10010037, geounit Norway [details]
Syntype G 00191459, geounit Norway [details]
From editor or global species database
Description Cespitosa. Tallos fértiles 3,5–35(45) cm, lisos, obtusamente trígonos, frecuentemente arqueados. Hojas 1,8–4(9) mm de anchura, de menor longitud que los tallos, lisas, planas, algo rígidas; lígula hasta 2,5 mm, de menor anchura que el limbo, de ápice redondeado o truncado; generalmente sin antelígula; vainas basales enteras, de color pardo muy claro o verde pálido. Bráctea inferior foliácea, de 2,2–12(18) cm × (1)1,3–3,2 mm, generalmente de longitud mayor que la inflorescencia. Espiga masculina solitaria, de (1)4,5–20(25) × 1,3–3,3 mm, cilíndrica o fusiforme, con un pedúnculo de 2–11(28) mm; espigas femeninas (1)2–5, de 5,5–16 × 3,5–8,5 mm, cortamente oblongas o elípticas, erectas, las superiores aproximadas, la inferior casi siempre distante, basilar o casi; largamente pedunculada. Glumas masculinas ± ovales, obtusas, generalmente de color pardo-rojizo claro; glumas femeninas ovales, agudas u obtusas, generalmente de color pardo rojizo claro, con 1–3 nervios. Utrículos 2,5–4,1(4,3) × 1–1,5(1,6) mm, los inferiores patentes, raramente algunos reflejos, los de la mitad superior de patentes a erecto-patentes y los apicales generalmente erectos, inflado-trígonos, con todos los nervios resaltados, estrechados bruscamente en un pico de (0,7)0,8–1,7(1,8) mm, liso o ligeramente escábrido, recto o ligeramente curvado (0–30° respecto del cuerpo del utrículo). Aquenios 1,1–1,5 × 0,9–1,2 mm, de contorno obovado, trígonos. 2n = 68, 70. [details]

Description Stems 5-20(-40) cm, ascending. Leaves at least as long as stems, 2-5 mm wide, green or yellowish-green, flat. Peduncle of male spike 3-25 mm. Female spikes 7-13x6-8 mm, the upper usually overlapping, the lowest often very remote; lowest bract usually greatly exceed ing inflorescence, erect to deflexed. Utricles (3-)3-5-4mm, broadly ellipsoid, usually green, prominently veined, all patent or ascending, straight, gradually narrowed into a straight beak c. 1 mm usually comprising less than | of the length of the utricle. 2« = 70.  [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fors. Oecon. Plantel. ed. 2: 826 1806 to Fors. Oecon. Plantel. , ed. 2: 826 (1806), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]

Translation Caespitose. Fertile culms 3.5–35(45) cm, smooth, obtusely trigonous, frequently arcuate. Leaves 1.8–4(9) mm wide, shorter than the culms, smooth, flat, somewhat rigid; ligule up to 2.5 mm, narrower than the blade, apex rounded or truncate; antiligule usually absent; basal sheaths entire, pale brown or pale green. Lower bract leaf-like, 2.2–12(18) cm × (1)1.3–3.2 mm, generally longer than the inflorescence. Male spike solitary, (1)4.5–20(25) × 1.3–3.3 mm, cylindrical or fusiform, with a peduncle 2–11(28) mm long; female spikes (1)2–5, 5.5–16 × 3.5–8.5 mm, shortly oblong or elliptic, erect, the upper ones approximate, the lower one almost always distant, basal or nearly so, long-pedunculate. Male glumes ± ovate, obtuse, generally light reddish-brown; female glumes ovate, acute or obtuse, generally light reddish-brown, with 1–3 nerves. Utricles 2.5–4.1(4.3) × 1–1.5(1.6) mm, the lower ones spreading, rarely some reflexed, those of the upper half spreading to erecto-patent and the apical ones usually erect, inflated-trigonous, with all nerves prominent, abruptly narrowed into a beak (0.7)0.8–1.7(1.8) mm long, smooth or slightly scabrid, straight or slightly curved (0–30° relative to the body of the utricle). Achenes 1.1–1.5 × 0.9–1.2 mm, obovate in outline, trigonous. 2n = 68, 70. [details]
    Definitions

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To Biodiversity Heritage Library (52 publications) 
To European Nucleotide Archive, ENA (Carex demissa) 
To GenBank (52 nucleotides; 2 proteins) 
To Genève Herbarium (Carex demissa G00191459 type 1) 
To International Plant Names Index (IPNI) (from synonym Carex flava subsp. demissa (Hornem.) O.Bolòs, Masalles & Vigo)
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Carex oederi subsp. demissa (Hornem.) C.Vicioso)
To Plants of the World Online (from synonym Carex flava f. demissa (Hornem.) Kük.)
To Plants of the World Online 
To Plants of the World Online (from synonym Carex oederi subsp. demissa (Hornem.) C.Vicioso)
To Plants of the World Online (from synonym Carex flava subsp. demissa (Hornem.) O.Bolòs, Masalles & Vigo)
From editor or global species database
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