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Cyperaceae taxon details

Carex rugata Ohwi

1677000  (urn:lsid:marinespecies.org:taxname:1677000)

accepted
Species
terrestrial
Ohwi, J. (1932). Symbolae ad Floram Asiae Orientalis IV. <em>Acta Phytotaxonomica et Geobotanica.</em> 1(1): 66-87.
page(s): 76 [details] Available for editors  PDF available [request]
Holotype , geounit Honshu  
Holotype, geounit Honshu [details]
Description Rhizome short, with creeping stolons. Culms arising from axils of leaves, 20-50 cm tall, slender, obtusely trigonous,...  
Description Rhizome short, with creeping stolons. Culms arising from axils of leaves, 20-50 cm tall, slender, obtusely trigonous, smooth, clothed at base with fibrous remains of old basal leaf sheaths. Leaves slightly shorter than or nearly equaling culm, blades 2-4(-5) mm wide, flat, glabrous, margins scabrid. Involucral bracts with blades, longer than subtending spike, sheathed, sheath 0.5-2.5 cm. Spikes 4 or 5, upper spikes contiguous, lower ones spaced; terminal spike male, linear-cylindric, 10-20 × 1.5-2 mm, sessile or shortly pedunculate, surpassing next female spikelet; lateral spikes female, linear-cylindric, 15-28 × 2-2.5 mm, densely flowered, with peduncle enclosed in involucral bract sheath or shortly exserted. Female glumes yellow-white, oblong, 2.5-3 mm, with 1-veined green costa, apex cuneate, mucronate. Utricle pale green, longer than glume, rhombic-oblong, obtusely trigonous, ca. 3 mm, thinly membranous, glabrous, many veined, apex gradually attenuate into a conic beak, beak ca. 0.5 mm, minutely 2-toothed at orifice. Nutlet tightly enveloped, oblong, ca. 2 mm, with faces excavated both in upper and lower parts, not contracted at angles, base shortly stipitate, apex discoid-annulate; style base slightly thickened; stigmas 3. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Acta Phytotax. Geobot. 1(1): 76. 1932 [20 Apr 1932] to Acta Phytotax....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Acta Phytotax. Geobot. 1(1): 76. 1932 [20 Apr 1932] to Acta Phytotax. Geobot. 1: 76 (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 rugata Ohwi. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677000 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 Ohwi, J. (1932). Symbolae ad Floram Asiae Orientalis IV. <em>Acta Phytotaxonomica et Geobotanica.</em> 1(1): 66-87.
page(s): 76 [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 
   

Holotype, geounit Honshu [details]
Syntype K 000960995, geounit Honshu [details]
From editor or global species database
Additional information 2n=78 [details]

Description Rhizome short, with creeping stolons. Culms arising from axils of leaves, 20-50 cm tall, slender, obtusely trigonous, smooth, clothed at base with fibrous remains of old basal leaf sheaths. Leaves slightly shorter than or nearly equaling culm, blades 2-4(-5) mm wide, flat, glabrous, margins scabrid. Involucral bracts with blades, longer than subtending spike, sheathed, sheath 0.5-2.5 cm. Spikes 4 or 5, upper spikes contiguous, lower ones spaced; terminal spike male, linear-cylindric, 10-20 × 1.5-2 mm, sessile or shortly pedunculate, surpassing next female spikelet; lateral spikes female, linear-cylindric, 15-28 × 2-2.5 mm, densely flowered, with peduncle enclosed in involucral bract sheath or shortly exserted. Female glumes yellow-white, oblong, 2.5-3 mm, with 1-veined green costa, apex cuneate, mucronate. Utricle pale green, longer than glume, rhombic-oblong, obtusely trigonous, ca. 3 mm, thinly membranous, glabrous, many veined, apex gradually attenuate into a conic beak, beak ca. 0.5 mm, minutely 2-toothed at orifice. Nutlet tightly enveloped, oblong, ca. 2 mm, with faces excavated both in upper and lower parts, not contracted at angles, base shortly stipitate, apex discoid-annulate; style base slightly thickened; stigmas 3. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Acta Phytotax. Geobot. 1(1): 76. 1932 [20 Apr 1932] to Acta Phytotax. Geobot. 1: 76 (1932), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
LanguageName 
Japanese クサスゲ(Kusa-suge)  [details]