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Cyperaceae taxon details

Carex quadriflora (Kük.) Ohwi

1676912  (urn:lsid:marinespecies.org:taxname:1676912)

accepted
Species
terrestrial
(of Carex digitata subsp. quadriflora Kük.) Kükenthal, G. (1909). Cyperaceae-Caricoidae. <em>Das Pflanzenreich: regni vegetabilis conspectus.</em> 38, 4(20)., available online at https://www.biodiversitylibrary.org/page/31618144
page(s): 497 [details] OpenAccess publication
Lectotype  (of Carex digitata subsp. quadriflora Kük.)...  
Lectotype (of Carex digitata subsp. quadriflora Kük.) LE 01006744, geounit Primorsky Krai [details]
Description Rhizome short, obliquely ascending. Culms densely tufted, lateral, 15-30 cm tall, not exceeding 1 mm thick, triquetrous,...  
Description Rhizome short, obliquely ascending. Culms densely tufted, lateral, 15-30 cm tall, not exceeding 1 mm thick, triquetrous, scabrous at upper part, purple-red sheathed at base. Leaves shorter than culm, nearly equaling culm after fruiting, blades 2-4 mm wide, soft, flat, smooth, purple-red and persistent sheathed. Involucral bracts red-brown, spathelike, membranous on margins, truncate at apex, involucral bract blade awn-shaped. Spikes 2 or 3, remote; terminal spike male, shorter than adjacent female spike, linear, 4.5-10 mm, 1-2 mm thick; lateral spikes 1 or 2, female, linear, 1-1.5 cm, 2-2.5 mm thick, loosely 2-4(-6)-flowered; peduncles filiform, 1-3 cm, soft; rachis tortuous. Female glumes ferruginous laterally, green at middle, obovate-oblong, ca. 3 mm, 1-veined, margins broadly white hyaline, apex rounded, mucronate. Utricles yellowish green, longer than glumes, obovate, obtusely trigonous, subplano-convex, 4-5 mm, loosely pubescent, 2-veined laterally, not distinctly thinly veined, base abruptly contracted into a short stipe, apex rounded and shortly beaked, beak ferruginous, truncate at orifice. Nutlets pale ferruginous at maturity, obovate, trigonous, 3.5-4 mm, base contracted into a short stipe, apex abruptly contracted into a short beak; style short, base not thickened; stigmas 3. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Acta Phytotax. Geobot. 1(1): 74. 1932 [20 A906 to Acta Phytotax....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Acta Phytotax. Geobot. 1(1): 74. 1932 [20 A906 to Acta Phytotax. Geobot. 1: 74 (1932), 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 quadriflora (Kük.) Ohwi. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676912 on 2025-09-11
Date
action
by
2023-09-06 07:28:28Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-03-11 11:19:03Z
changed

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Nomenclature

original description (of Carex digitata subsp. quadriflora Kük.) Kükenthal, G. (1909). Cyperaceae-Caricoidae. <em>Das Pflanzenreich: regni vegetabilis conspectus.</em> 38, 4(20)., available online at https://www.biodiversitylibrary.org/page/31618144
page(s): 497 [details] OpenAccess publication

new combination reference Ohwi, J. (1932). Symbolae ad Floram Asiae Orientalis IV. <em>Acta Phytotaxonomica et Geobotanica.</em> 1(1): 66-87.
page(s): 74 [details] Available for editors  PDF available [request]

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  PDF available [request]

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Lectotype (of Carex digitata subsp. quadriflora Kük.) LE 01006744, geounit Primorsky Krai [details]
From editor or global species database
Description Rhizome short, obliquely ascending. Culms densely tufted, lateral, 15-30 cm tall, not exceeding 1 mm thick, triquetrous, scabrous at upper part, purple-red sheathed at base. Leaves shorter than culm, nearly equaling culm after fruiting, blades 2-4 mm wide, soft, flat, smooth, purple-red and persistent sheathed. Involucral bracts red-brown, spathelike, membranous on margins, truncate at apex, involucral bract blade awn-shaped. Spikes 2 or 3, remote; terminal spike male, shorter than adjacent female spike, linear, 4.5-10 mm, 1-2 mm thick; lateral spikes 1 or 2, female, linear, 1-1.5 cm, 2-2.5 mm thick, loosely 2-4(-6)-flowered; peduncles filiform, 1-3 cm, soft; rachis tortuous. Female glumes ferruginous laterally, green at middle, obovate-oblong, ca. 3 mm, 1-veined, margins broadly white hyaline, apex rounded, mucronate. Utricles yellowish green, longer than glumes, obovate, obtusely trigonous, subplano-convex, 4-5 mm, loosely pubescent, 2-veined laterally, not distinctly thinly veined, base abruptly contracted into a short stipe, apex rounded and shortly beaked, beak ferruginous, truncate at orifice. Nutlets pale ferruginous at maturity, obovate, trigonous, 3.5-4 mm, base contracted into a short stipe, apex abruptly contracted into a short beak; style short, base not thickened; stigmas 3. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Acta Phytotax. Geobot. 1(1): 74. 1932 [20 A906 to Acta Phytotax. Geobot. 1: 74 (1932), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
LanguageName 
Japanese アカスゲ(Aka-suge)  [details]