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Cyperaceae taxon details

Carex duvaliana Franch. & Sav.

1676875  (urn:lsid:marinespecies.org:taxname:1676875)

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Franchet, A. & Savatier, L. (1878). Enumeratio plantarum : in Japonia sponte crescentium hucusque rite cognitarum, adjectis descriptionibus specierum pro regione novarum, quibus accedit determinatio herbarum in libris japonicis. 2., available online at https://www.biodiversitylibrary.org/page/6210685#page/3/mode/1up
page(s): 568 [details] 
Description Rhizome short, with creeping stolons. Culms tufted, 20-35 cm tall, slender, obtusely trigonous, puberulent. Leaves slightly...  
Description Rhizome short, with creeping stolons. Culms tufted, 20-35 cm tall, slender, obtusely trigonous, puberulent. Leaves slightly shorter than culm, blades pale green, 1.5-3 mm wide, flat, puberulent; basal sheaths pale yellow to pale brown, densely puberulent. Lower involucral bracts with blades, longer than subtending spike, long sheathed, sheath 1-4.5 mm, upper involucral bracts bristlelike, shortly sheathed, puberulent. Spike 3-5, spaced, sometimes upper ones slightly contiguous; terminal spike male, cylindric, 15-22 × 2-3 mm, with peduncle 1.5-2 cm; lateral spikes female, cylindric, 10-20 × 2-3 mm, loosely flowered, with peduncle enclosed in involucral bract sheath or shortly exserted. Female glumes yellowish white, obovate, ca. 3 mm, green costa 1-3-veined, rather prominent and excurrent into a short awn. Utricles pale green, longer than glume, ovate-fusiform, trigonous, 3.5-4 mm, membranous, many veined, sparsely puberulent, base attenuate into a stipe 0.5-1 mm, apex contracted into a medium-sized beak ca. 1 mm, orifice 2-toothed. Nutlet tightly enveloped, ovate, trigonous, 1.5-2 mm, base shortly stipitate, stipe slightly bent, apex discoid-annulate; style short, base conically thickened; stigmas 3. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Enum. Pl. Jap. 2: 568. 1878 [prob. Apr 1878] to Enum. Pl. Jap. 2: 568...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Enum. Pl. Jap. 2: 568. 1878 [prob. Apr 1878] to Enum. Pl. Jap. 2: 568 (1878), 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 duvaliana Franch. & Sav.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676875 on 2025-09-13
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
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Nomenclature

original description Franchet, A. & Savatier, L. (1878). Enumeratio plantarum : in Japonia sponte crescentium hucusque rite cognitarum, adjectis descriptionibus specierum pro regione novarum, quibus accedit determinatio herbarum in libris japonicis. 2., available online at https://www.biodiversitylibrary.org/page/6210685#page/3/mode/1up
page(s): 568 [details] 

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

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 
   

Isotype L 0042258, geounit Japan [details]
Syntype P 02208495, geounit Japan [details]
From editor or global species database
Additional information 2n=76 [details]

Additional information 2n=75, 76, 77, 78 [details]

Description Rhizome short, with creeping stolons. Culms tufted, 20-35 cm tall, slender, obtusely trigonous, puberulent. Leaves slightly shorter than culm, blades pale green, 1.5-3 mm wide, flat, puberulent; basal sheaths pale yellow to pale brown, densely puberulent. Lower involucral bracts with blades, longer than subtending spike, long sheathed, sheath 1-4.5 mm, upper involucral bracts bristlelike, shortly sheathed, puberulent. Spike 3-5, spaced, sometimes upper ones slightly contiguous; terminal spike male, cylindric, 15-22 × 2-3 mm, with peduncle 1.5-2 cm; lateral spikes female, cylindric, 10-20 × 2-3 mm, loosely flowered, with peduncle enclosed in involucral bract sheath or shortly exserted. Female glumes yellowish white, obovate, ca. 3 mm, green costa 1-3-veined, rather prominent and excurrent into a short awn. Utricles pale green, longer than glume, ovate-fusiform, trigonous, 3.5-4 mm, membranous, many veined, sparsely puberulent, base attenuate into a stipe 0.5-1 mm, apex contracted into a medium-sized beak ca. 1 mm, orifice 2-toothed. Nutlet tightly enveloped, ovate, trigonous, 1.5-2 mm, base shortly stipitate, stipe slightly bent, apex discoid-annulate; style short, base conically thickened; stigmas 3. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Enum. Pl. Jap. 2: 568. 1878 [prob. Apr 1878] to Enum. Pl. Jap. 2: 568 (1878), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
LanguageName 
Japanese ケスゲ(Ke-suge)  [details]