Cyperaceae taxon details
Carex graminiculmis T.Koyama
1677827 (urn:lsid:marinespecies.org:taxname:1677827)
accepted
Species
terrestrial
Koyama, T. (1956). New or noteworthy species of Cyperaceae from China. Journal of Japanese Botany, 15(2): 164-185.
page(s): 170 [details]
page(s): 170 [details]
Description Rhizome short, woody, with 1 or 2 rather long stolons, brown. Culms 60-70 cm tall, erect, rigid, slender, obtusely...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Jap. J. Bot. xv. 170 (1956). to Jap. J. Bot. 15: 170 (1956),...
Description Rhizome short, woody, with 1 or 2 rather long stolons, brown. Culms 60-70 cm tall, erect, rigid, slender, obtusely trigonous, smooth, clothed at base with brown-yellow sheaths disintegrating into parallel fibers. Leaves ca. 1/2 length of culm, blades linear, 1.5-5 mm wide, flattish, revolute, margins scabrous, apex long acuminate. Basal involucral bracts leaflike, slightly shorter than or equaling inflorescence, shortly sheathing, 1.5-2.5 cm, remaining bracts setaceous, very shortly sheathing. Spikes 9-21, approximate, subfastigiate, disposed in a panicle, rarely spicate; upper 7-11 spikes male, castaneous-red, sessile or sometimes lower 1 or 2 slightly shortly pedunculate; terminal spike oblong-elliptic, 15-20 × 3-9 mm, densely many flowered; remaining spikes female, oblong, obovate, or obovate-oblong, 8-25 × 3-8 mm, declined, densely many flowered, sometimes loosely flowered at base. Female glumes red-brown or castaneous, ovate or broadly rhomboid-elliptic, 4-4.5 × 2-2.3 mm, lustrous, densely hirsute on upper part and along margins, margins broadly white hyaline, costa green, 3-veined, veins scabrous, apex acute. Utricles brown-purple or castaneous, longer than glume, obovate-elliptic, compressed, (4.2-)5-6 × 2-3 mm, thinly membranous, densely hirsute, 5-7-veined, base subabruptly contracted into a very short stipe, apex abruptly contracted into a very short beak, orifice broadly white hyaline, obliquely truncate, entire. Nutlets light yellow, loosely enveloped, oblong, trigonous, ca. 2.5 × 1 mm, slightly convex on faces, base cuneate, attenuate into a stipe ca. 0.8 mm, apex abruptly contracted into a mucro; style up to ca. 3 mm, slightly curved; stigmas (2 or)3. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Jap. J. Bot. xv. 170 (1956). to Jap. J. Bot. 15: 170 (1956),...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Jap. J. Bot. xv. 170 (1956). to Jap. J. Bot. 15: 170 (1956), 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 graminiculmis T.Koyama. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677827 on 2025-09-14
Date
action
by
2024-12-10 11:47:54Z
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Nomenclature
original description
Koyama, T. (1956). New or noteworthy species of Cyperaceae from China. Journal of Japanese Botany, 15(2): 164-185.
page(s): 170 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 170 [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 
[request]
[request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Description Rhizome short, woody, with 1 or 2 rather long stolons, brown. Culms 60-70 cm tall, erect, rigid, slender, obtusely trigonous, smooth, clothed at base with brown-yellow sheaths disintegrating into parallel fibers. Leaves ca. 1/2 length of culm, blades linear, 1.5-5 mm wide, flattish, revolute, margins scabrous, apex long acuminate. Basal involucral bracts leaflike, slightly shorter than or equaling inflorescence, shortly sheathing, 1.5-2.5 cm, remaining bracts setaceous, very shortly sheathing. Spikes 9-21, approximate, subfastigiate, disposed in a panicle, rarely spicate; upper 7-11 spikes male, castaneous-red, sessile or sometimes lower 1 or 2 slightly shortly pedunculate; terminal spike oblong-elliptic, 15-20 × 3-9 mm, densely many flowered; remaining spikes female, oblong, obovate, or obovate-oblong, 8-25 × 3-8 mm, declined, densely many flowered, sometimes loosely flowered at base. Female glumes red-brown or castaneous, ovate or broadly rhomboid-elliptic, 4-4.5 × 2-2.3 mm, lustrous, densely hirsute on upper part and along margins, margins broadly white hyaline, costa green, 3-veined, veins scabrous, apex acute. Utricles brown-purple or castaneous, longer than glume, obovate-elliptic, compressed, (4.2-)5-6 × 2-3 mm, thinly membranous, densely hirsute, 5-7-veined, base subabruptly contracted into a very short stipe, apex abruptly contracted into a very short beak, orifice broadly white hyaline, obliquely truncate, entire. Nutlets light yellow, loosely enveloped, oblong, trigonous, ca. 2.5 × 1 mm, slightly convex on faces, base cuneate, attenuate into a stipe ca. 0.8 mm, apex abruptly contracted into a mucro; style up to ca. 3 mm, slightly curved; stigmas (2 or)3. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Jap. J. Bot. xv. 170 (1956). to Jap. J. Bot. 15: 170 (1956), 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 University of Tokyo Herbarium (Carex graminiculmis type TI00010086)
To University of Tokyo Herbarium (Carex graminiculmis type TI00010087)
To Plants of the World Online
To University of Tokyo Herbarium (Carex graminiculmis type TI00010086)
To University of Tokyo Herbarium (Carex graminiculmis type TI00010087)
From editor or global species database
Hosted externally
Hosted externally
