Cyperaceae taxon details
Carex ascotreta C.B.Clarke ex Franch.
1677243 (urn:lsid:marinespecies.org:taxname:1677243)
accepted
Species
Carex ascocentra C.B.Clarke ex Franch. · unaccepted
terrestrial
Franchet, A. (1897). Les Carex de l'Asie orientale. Nouvelles archives du Muséum d'histoire naturelle, 9: 113-200., available online at https://www.biodiversitylibrary.org/page/37093654
page(s): 182 [details]
page(s): 182 [details]
Description Rhizome stout, covered with fibrous, brown remnants of old scales. Culms 10-60 cm tall, obscurely trigonous, smooth, basal...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Nouv. Arch. Mus. Hist. Nat. sér. 3, 9: 182. 1897 to Nouv. Arch. Mus....
Description Rhizome stout, covered with fibrous, brown remnants of old scales. Culms 10-60 cm tall, obscurely trigonous, smooth, basal leaf sheaths dark brown, split into fibers. Leaves shorter to longer than culm, blades 2-4 mm wide, flat, margins scabrid. Involucral bracts leafy, blade shorter than inflorescence, sheathed, sheath 5-18 mm. Spikes 4-6; peduncles erect, nearly enclosed in involucral bract sheath; terminal spike male, linear, 1-4 × ca. 0.2 cm, with peduncle 2-14 mm; lateral spikes female, oblong to cylindric, 12-40 × 2-4 mm, upper ones contiguous, lowermost spaced. Female glumes pale yellow-green, elliptic, 2.5-3 mm (excluding awn), green costa 3-veined, excurrent into a scabrid awn 2-4 mm, apex emarginate or acute. Utricles green, slightly longer than or nearly equaling glume, fusiform, 3.5-4 mm, membranous, puberulent, many veined, base attenuate into a short stipe 0.5-0.6 mm, apex attenuate into a slightly recurved beak, orifice obliquely truncate. Nutlet yellow-brown, tightly enveloped, fusiform, ca. 2.5 mm, with angles contracted at middle and faces excavated in both upper and lower parts, base with stipe ca. 1 mm, apex with short cylindric neck, neck shallowly concave at top, pale yellow, 0.4-0.5 mm; style base slightly thickened; stigmas 3. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Nouv. Arch. Mus. Hist. Nat. sér. 3, 9: 182. 1897 to Nouv. Arch. Mus....
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Nouv. Arch. Mus. Hist. Nat. sér. 3, 9: 182. 1897 to Nouv. Arch. Mus. Hist. Nat. , sér. 3, 9: 182 (1897), 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 ascotreta C.B.Clarke ex Franch.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677243 on 2026-06-09
Date
action
by
2024-12-10 11:47:54Z
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db_admin
The webpage text is licensed under a Creative Commons
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Nomenclature
original description
Franchet, A. (1897). Les Carex de l'Asie orientale. Nouvelles archives du Muséum d'histoire naturelle, 9: 113-200., available online at https://www.biodiversitylibrary.org/page/37093654
page(s): 182 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 182 [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 stout, covered with fibrous, brown remnants of old scales. Culms 10-60 cm tall, obscurely trigonous, smooth, basal leaf sheaths dark brown, split into fibers. Leaves shorter to longer than culm, blades 2-4 mm wide, flat, margins scabrid. Involucral bracts leafy, blade shorter than inflorescence, sheathed, sheath 5-18 mm. Spikes 4-6; peduncles erect, nearly enclosed in involucral bract sheath; terminal spike male, linear, 1-4 × ca. 0.2 cm, with peduncle 2-14 mm; lateral spikes female, oblong to cylindric, 12-40 × 2-4 mm, upper ones contiguous, lowermost spaced. Female glumes pale yellow-green, elliptic, 2.5-3 mm (excluding awn), green costa 3-veined, excurrent into a scabrid awn 2-4 mm, apex emarginate or acute. Utricles green, slightly longer than or nearly equaling glume, fusiform, 3.5-4 mm, membranous, puberulent, many veined, base attenuate into a short stipe 0.5-0.6 mm, apex attenuate into a slightly recurved beak, orifice obliquely truncate. Nutlet yellow-brown, tightly enveloped, fusiform, ca. 2.5 mm, with angles contracted at middle and faces excavated in both upper and lower parts, base with stipe ca. 1 mm, apex with short cylindric neck, neck shallowly concave at top, pale yellow, 0.4-0.5 mm; style base slightly thickened; stigmas 3. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Nouv. Arch. Mus. Hist. Nat. sér. 3, 9: 182. 1897 to Nouv. Arch. Mus. Hist. Nat. , sér. 3, 9: 182 (1897), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (2 publications)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex davidii var. ascocentra (C.B.Clarke ex Franch.) Kük.)
To Plants of the World Online (from synonym Carex davidii var. ascocentra (C.B.Clarke ex Franch.) Kük.)
To Plants of the World Online
To The Plant List (from synonym Carex ascocentra C.B.Clarke ex Franch.)
To The Plant List (from synonym Carex davidii var. ascotreta (C.B.Clarke ex Franch.) Kük.)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex davidii var. ascocentra (C.B.Clarke ex Franch.) Kük.)
To Plants of the World Online (from synonym Carex davidii var. ascocentra (C.B.Clarke ex Franch.) Kük.)
To Plants of the World Online
To The Plant List (from synonym Carex ascocentra C.B.Clarke ex Franch.)
To The Plant List (from synonym Carex davidii var. ascotreta (C.B.Clarke ex Franch.) Kük.)
