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Cyperaceae taxon details

Carex kobomugi Ohwi

1676560  (urn:lsid:marinespecies.org:taxname:1676560)

accepted
Species
terrestrial
Ohwi, J. (1930). Contributiones ad caricologiam Asiae Orientalis (pars prima). <em>Memoirs of the College of Science, Kyoto Imperial University. Series B.</em> 5(3): 247-292., available online at http://hdl.handle.net/2433/257739
page(s): 281 [details] Available for editors  PDF available [request]
Description Rhizome long creeping, clothed with dark brown fibrous remnants of old glumes. Culms 10-20 cm tall, 3-4 mm thick, erect,...  
Description Rhizome long creeping, clothed with dark brown fibrous remnants of old glumes. Culms 10-20 cm tall, 3-4 mm thick, erect, rigid, obtusely trigonous, subsmooth, clothed at base with dark brown sheaths disintegrating into parallel fibers. Leaves longer than culm, blades yellow-green, broadly linear, 3-8 mm wide, flat, ± curved, leathery, serrulate margined. Lowest involucral bracts narrowly leaflike. Plants dioecious, rarely monoecious; male inflorescence oblong, 4-5 × 1.2-1.3 cm; female inflorescence ovate to oblong, 4-6 × ca. 3 cm; spikes numerous, ovate, 10-15 mm. Female glumes yellow-green, ovate to narrowly ovate, 12-16 × 4-5 mm, leathery, many veined, margins broadly hyaline, broad costa excurrent into a long scabrous awn, apex acute, usually toothed. Utricles yellow-greenish, slightly shorter than or ± equaling glume, lanceolate or ovate-lanceolate, plano-convex, 10-15 × ca. 4 mm, leathery, lustrous, finely many veined on both faces, narrowly winged margins irregularly serrulate-scabrous on upper part, apex gradually tapering into a long weakly incurved beak, orifice 2-toothed. Nutlets olivaceous, loosely enveloped, oblong-obovate or oblong, compressed trigonous, base slightly cuneate, apex rounded; style sparsely pilose below, base slightly thickened; stigmas 2. [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex kobomugi Ohwi. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676560 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 Ohwi, J. (1930). Contributiones ad caricologiam Asiae Orientalis (pars prima). <em>Memoirs of the College of Science, Kyoto Imperial University. Series B.</em> 5(3): 247-292., available online at http://hdl.handle.net/2433/257739
page(s): 281 [details] Available for editors  PDF available [request]

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
Additional information 2n=84 [details]

Additional information 2n=88 [details]

Description Rhizome long creeping, clothed with dark brown fibrous remnants of old glumes. Culms 10-20 cm tall, 3-4 mm thick, erect, rigid, obtusely trigonous, subsmooth, clothed at base with dark brown sheaths disintegrating into parallel fibers. Leaves longer than culm, blades yellow-green, broadly linear, 3-8 mm wide, flat, ± curved, leathery, serrulate margined. Lowest involucral bracts narrowly leaflike. Plants dioecious, rarely monoecious; male inflorescence oblong, 4-5 × 1.2-1.3 cm; female inflorescence ovate to oblong, 4-6 × ca. 3 cm; spikes numerous, ovate, 10-15 mm. Female glumes yellow-green, ovate to narrowly ovate, 12-16 × 4-5 mm, leathery, many veined, margins broadly hyaline, broad costa excurrent into a long scabrous awn, apex acute, usually toothed. Utricles yellow-greenish, slightly shorter than or ± equaling glume, lanceolate or ovate-lanceolate, plano-convex, 10-15 × ca. 4 mm, leathery, lustrous, finely many veined on both faces, narrowly winged margins irregularly serrulate-scabrous on upper part, apex gradually tapering into a long weakly incurved beak, orifice 2-toothed. Nutlets olivaceous, loosely enveloped, oblong-obovate or oblong, compressed trigonous, base slightly cuneate, apex rounded; style sparsely pilose below, base slightly thickened; stigmas 2. [details]