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Cyperaceae name details

Carex divulsa subsp. leersii (Kneuck.) W.Koch

To the Natural History Museum, London (Carex divulsa subsp. leersii (Kneuck.) W.Koch BM001067009 type 1)
To the Natural History Museum, London (Carex divulsa subsp. leersii (Kneuck.) W.Koch BM001067009 type 1)

1703890  (urn:lsid:marinespecies.org:taxname:1703890)

  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. Vignea (Subgenus)
  14. Carex sect. Phaestoglochin (Section)
  15. Carex divulsa (Species)
  16. Carex divulsa subsp. leersii (Subspecies)
 unaccepted
Subspecies
terrestrial
(of Carex leersii F.W.Schultz) Schultz, F. W. (1870). Carex leersii. <em>Flora.</em> 53(29): 459., available online at https://www.biodiversitylibrary.org/page/59549
page(s): 459 [details] 
Description Rhizomes short; shoots in ± dense tufts 10–20 cm across; roots thick, grey brown; scales dark brown with black veins,...  
Description Rhizomes short; shoots in ± dense tufts 10–20 cm across; roots thick, grey brown; scales dark brown with black veins, soon becoming fibrous. Stems 25–90 cm, robust, trigonous. Leaves up to 75 cm × 3–5 mm, shorter than flowering stem, flat or channelled, gradually tapered to a fine, flat apex, usually bright yellow-green till late in the season (although darker in shade), stiff; hypostomous; sheaths forming false stems in sterile shoots, lower pale brown, ribbed; inner face hyaline; apex straight or ± concave; ligule 2 mm or less, obtuse or truncate, often yellow. (The blade of the leaf is at this point so closely appressed to the stem that when pulled it parts from it with a snap.) Inflorescence 4–6 cm; lower bracts 2–3 cm, sometimes longer, setaceous, upper glumaceous. Spikes 4–8, the upper contiguous, 5–10 mm, all female, the lower up to 2 cm distant from each other, sometimes branched, 5–15 mm, male at top and female below. Male glumes 3.5–5 mm, lanceolate, brownish hyaline; midrib green; apex acute. Female glumes 4–4.5 mm, ovate-elliptic, golden-yellow or light brown; midrib often green; apex acute to attenuate. Utricles 4–4.5(–4.8) mm, markedly divaricate, ovoid, tapered above and below, faintly nerved at base, shiny, yellowish, soon becoming dark red brown; beak c. 1 mm, rough, split; stigmas 2; nut obovoid, biconvex. [details]

Description Inflorescencia hasta 6(7) cm, con al menos las espigas superiores aproximadas, la(s) inferior(es) separada(s), en...  
Description Inflorescencia hasta 6(7) cm, con al menos las espigas superiores aproximadas, la(s) inferior(es) separada(s), en ocasiones, del resto por una distancia hasta de 2 cm. Utrículos (4)4,5–5(5,5) mm. Aquenios de contorno ± elíptico, a veces de anchura algo mayor en la mitad inferior. 2n = 56, 57*, 58, 59*.*

 [details]

Taxonomic remark Source in seed data: wcs More details could be found in The Plant List v.1.1. Originally in The Plant List v.1.0  
Taxonomic remark Source in seed data: wcs More details could be found in The Plant List v.1.1. Originally in The Plant List v.1.0 [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex divulsa subsp. leersii (Kneuck.) W.Koch. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1703890 on 2026-05-17
Date
action
by
2023-10-11 08:08:23Z
created
Jiménez-Mejías, Pedro
2024-12-10 11:47:54Z
unchecked
db_admin

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Nomenclature

original description (of Carex leersii F.W.Schultz) Schultz, F. W. (1870). Carex leersii. <em>Flora.</em> 53(29): 459., available online at https://www.biodiversitylibrary.org/page/59549
page(s): 459 [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] 

From editor or global species database
Description Rhizomes short; shoots in ± dense tufts 10–20 cm across; roots thick, grey brown; scales dark brown with black veins, soon becoming fibrous. Stems 25–90 cm, robust, trigonous. Leaves up to 75 cm × 3–5 mm, shorter than flowering stem, flat or channelled, gradually tapered to a fine, flat apex, usually bright yellow-green till late in the season (although darker in shade), stiff; hypostomous; sheaths forming false stems in sterile shoots, lower pale brown, ribbed; inner face hyaline; apex straight or ± concave; ligule 2 mm or less, obtuse or truncate, often yellow. (The blade of the leaf is at this point so closely appressed to the stem that when pulled it parts from it with a snap.) Inflorescence 4–6 cm; lower bracts 2–3 cm, sometimes longer, setaceous, upper glumaceous. Spikes 4–8, the upper contiguous, 5–10 mm, all female, the lower up to 2 cm distant from each other, sometimes branched, 5–15 mm, male at top and female below. Male glumes 3.5–5 mm, lanceolate, brownish hyaline; midrib green; apex acute. Female glumes 4–4.5 mm, ovate-elliptic, golden-yellow or light brown; midrib often green; apex acute to attenuate. Utricles 4–4.5(–4.8) mm, markedly divaricate, ovoid, tapered above and below, faintly nerved at base, shiny, yellowish, soon becoming dark red brown; beak c. 1 mm, rough, split; stigmas 2; nut obovoid, biconvex. [details]

Description Inflorescencia hasta 6(7) cm, con al menos las espigas superiores aproximadas, la(s) inferior(es) separada(s), en ocasiones, del resto por una distancia hasta de 2 cm. Utrículos (4)4,5–5(5,5) mm. Aquenios de contorno ± elíptico, a veces de anchura algo mayor en la mitad inferior. 2n = 56, 57*, 58, 59*.*

 [details]

Taxonomic remark Source in seed data: wcs More details could be found in The Plant List v.1.1. Originally in The Plant List v.1.0 [details]

Translation Inflorescence up to 6(7) cm, with at least the upper spikes approximate, the lower one(s) sometimes separated from the rest by a distance of up to 2 cm. Utricles (4)4.5–5(5.5) mm. Achenes ± elliptic in outline, sometimes slightly wider in the lower half. 2n = 56, 57*, 58, 59**.* [details]
To Biodiversity Heritage Library (5 publications) 
To International Plant Names Index (IPNI) 
To Plants of the World Online 
To the Natural History Museum, London (Carex divulsa subsp. leersii (Kneuck.) W.Koch BM001067009 type 1) 
To the Natural History Museum, London (Carex divulsa subsp. leersii (Kneuck.) W.Koch BM001082084 type 1) 
To the Natural History Museum, London (Carex divulsa subsp. leersii (Kneuck.) W.Koch BM001082085 type 1) 
From editor or global species database
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