Cyperaceae taxon details
Carex hemineuros T.Koyama
1676377 (urn:lsid:marinespecies.org:taxname:1676377)
accepted
Species
terrestrial
Koyama, T. (1973). New Cyperaceae from Nepal and adjoining Tibet. Botanical Magazine, Tokyo, 86(1004): 275-283.
page(s): 276 [details] Available for editors
[request]
page(s): 276 [details] Available for editors
[request]
Holotype BM 000551299, geounit Nepal
Holotype BM 000551299, geounit Nepal [details]
Description Rhizome short, covered with brown scales not disintegrated into fibers. Culms 55-80 cm tall, smooth, sometimes 1-leaved at...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bot. Mag. (Tokyo) 86(1004): 276. 1973 to Bot. Mag. (Tokyo) 86: 276...
Description Rhizome short, covered with brown scales not disintegrated into fibers. Culms 55-80 cm tall, smooth, sometimes 1-leaved at middle. Leaves 4-6, blades linear, slightly shorter than culm, 5-7 mm wide, herbaceous; sheaths long, uppermost up to 30 cm, brownish abaxially, bearing ca. 0.5 mm ferruginous ligule at mouth. Lower 2 involucral bracts bladed and overtopping inflorescence, shortly sheathing. Spikes 4-6, ± contiguous; terminal spike gynaecandrous, 2-5 cm, male part brownish or reddish brown, 2-3.5 cm × ca. 3 mm, female part up to 1/2 as long as spike, 6-8 mm wide; lateral spikes female, at times upper 1 or 2 bearing short male part, olive-brownish, 2.5-4 cm × 5-8 mm, densely many flowered, long pedunculate. Female glumes brownish, ovate, 2-3 × 1.2-1.5 mm, membranous, 3-veined costa excurrent beyond apex into an erect awn ca. 1.5 mm. Utricles glaucous green, longer than body of glume but surpassed by awn, obovate to broadly obovate, 2.8-3 × 1.5-2 mm, herbaceous, glabrous, strongly 2-costate and bearing 4 or 5 veins reaching halfway up utricle, base cuneate-attenuate, apex rounded-contracted into a very short beak, orifice scarcely 2-toothed. Nutlets loosely enveloped, obovate, 1.5-2 × 1-1.5 mm; style ca. 1.8 mm; stigmas 3, ca. 1.5 mm. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bot. Mag. (Tokyo) 86(1004): 276. 1973 to Bot. Mag. (Tokyo) 86: 276...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bot. Mag. (Tokyo) 86(1004): 276. 1973 to Bot. Mag. (Tokyo) 86: 276 (1973), 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 hemineuros T.Koyama. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676377 on 2025-09-13
Date
action
by
2024-12-10 11:47:54Z
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db_admin
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Nomenclature
original description
Koyama, T. (1973). New Cyperaceae from Nepal and adjoining Tibet. Botanical Magazine, Tokyo, 86(1004): 275-283.
page(s): 276 [details] Available for editors [request]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 276 [details] Available for editors
[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 [request]
[request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Description Rhizome short, covered with brown scales not disintegrated into fibers. Culms 55-80 cm tall, smooth, sometimes 1-leaved at middle. Leaves 4-6, blades linear, slightly shorter than culm, 5-7 mm wide, herbaceous; sheaths long, uppermost up to 30 cm, brownish abaxially, bearing ca. 0.5 mm ferruginous ligule at mouth. Lower 2 involucral bracts bladed and overtopping inflorescence, shortly sheathing. Spikes 4-6, ± contiguous; terminal spike gynaecandrous, 2-5 cm, male part brownish or reddish brown, 2-3.5 cm × ca. 3 mm, female part up to 1/2 as long as spike, 6-8 mm wide; lateral spikes female, at times upper 1 or 2 bearing short male part, olive-brownish, 2.5-4 cm × 5-8 mm, densely many flowered, long pedunculate. Female glumes brownish, ovate, 2-3 × 1.2-1.5 mm, membranous, 3-veined costa excurrent beyond apex into an erect awn ca. 1.5 mm. Utricles glaucous green, longer than body of glume but surpassed by awn, obovate to broadly obovate, 2.8-3 × 1.5-2 mm, herbaceous, glabrous, strongly 2-costate and bearing 4 or 5 veins reaching halfway up utricle, base cuneate-attenuate, apex rounded-contracted into a very short beak, orifice scarcely 2-toothed. Nutlets loosely enveloped, obovate, 1.5-2 × 1-1.5 mm; style ca. 1.8 mm; stigmas 3, ca. 1.5 mm. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bot. Mag. (Tokyo) 86(1004): 276. 1973 to Bot. Mag. (Tokyo) 86: 276 (1973), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To International Plant Names Index (IPNI)
To Plants of the World Online
To Royal Botanic Garden Edinburgh Herbarium (Carex hemineuros E00393433 isotype 1)
To University of Tokyo Herbarium (Carex hemineuros type TI00010350)
To Plants of the World Online
To Royal Botanic Garden Edinburgh Herbarium (Carex hemineuros E00393433 isotype 1)
To University of Tokyo Herbarium (Carex hemineuros type TI00010350)
From editor or global species database
Hosted externally
Hosted externally
