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Cyperaceae taxon details

Carex pachyneura Kitag.

1676682  (urn:lsid:marinespecies.org:taxname:1676682)

accepted
Species
terrestrial
(1940). Rep. Inst. Sci. Res. Manchoukuo 4
page(s): 78 [details] 
Description Rhizome slender, creeping. Culms loosely tufted, 10-25 cm tall, less than 1 mm thick. Leaves shorter than culm, elongate...  
Description Rhizome slender, creeping. Culms loosely tufted, 10-25 cm tall, less than 1 mm thick. Leaves shorter than culm, elongate after flowering, involute on margins, filiform, blades 0.3-0.5 mm wide, slightly stiff, brown and persistent sheathed at base, sheaths eventually disintegrating into fibers. Involucral bracts green, spathelike, lowermost involucral bract blade shortly leaflike, upper ones setaceous. Spikes 2 or 3; terminal spike male, taller than adjacent female spike, clavate or cylindric, 9-18 mm, densely many flowered; lateral spikes 1 or 2, female, lowermost one remote, sometimes borne at base of culm, upper one approximate to male spike, oblong, 7-15 mm, densely several flowered, sometimes loosely few flowered at lower part; peduncles slender, exserted from involucral bract sheath. Female glumes brown laterally, green at middle, ovate, 2.5-3.5 mm, membranous, 3-veined, narrowly white hyaline on upper margin, apex acute, mucronate. Utricles brown, slightly longer than glume, obovate, inflated trigonous, 2.5-2.8 mm, papery, smooth on lower part, loosely pubescent near apex, with several convex veins, base broadly truncate, estipitate, apex abruptly contracted into a short beak, orifice shortly 2-toothed. Nutlets yellow at maturity, obovate, trigonous, 1.7-2.2 mm, base subsessile, apex abruptly contracted into a short beak; style base slightly thickened; stigmas 3.  [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rep. Inst. Sci. Res. Manchoukuo 4: 78. 1940 to Rep. Inst. Sci. Res....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rep. Inst. Sci. Res. Manchoukuo 4: 78. 1940 to Rep. Inst. Sci. Res. Manchoukuo 4: 78 (1940), 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 pachyneura Kitag.. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1676682 on 2025-09-14
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 (1940). Rep. Inst. Sci. Res. Manchoukuo 4
page(s): 78 [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 
   

From editor or global species database
Description Rhizome slender, creeping. Culms loosely tufted, 10-25 cm tall, less than 1 mm thick. Leaves shorter than culm, elongate after flowering, involute on margins, filiform, blades 0.3-0.5 mm wide, slightly stiff, brown and persistent sheathed at base, sheaths eventually disintegrating into fibers. Involucral bracts green, spathelike, lowermost involucral bract blade shortly leaflike, upper ones setaceous. Spikes 2 or 3; terminal spike male, taller than adjacent female spike, clavate or cylindric, 9-18 mm, densely many flowered; lateral spikes 1 or 2, female, lowermost one remote, sometimes borne at base of culm, upper one approximate to male spike, oblong, 7-15 mm, densely several flowered, sometimes loosely few flowered at lower part; peduncles slender, exserted from involucral bract sheath. Female glumes brown laterally, green at middle, ovate, 2.5-3.5 mm, membranous, 3-veined, narrowly white hyaline on upper margin, apex acute, mucronate. Utricles brown, slightly longer than glume, obovate, inflated trigonous, 2.5-2.8 mm, papery, smooth on lower part, loosely pubescent near apex, with several convex veins, base broadly truncate, estipitate, apex abruptly contracted into a short beak, orifice shortly 2-toothed. Nutlets yellow at maturity, obovate, trigonous, 1.7-2.2 mm, base subsessile, apex abruptly contracted into a short beak; style base slightly thickened; stigmas 3.  [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rep. Inst. Sci. Res. Manchoukuo 4: 78. 1940 to Rep. Inst. Sci. Res. Manchoukuo 4: 78 (1940), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]