Cyperaceae taxon details
Carex confertiflora Boott
1676697 (urn:lsid:marinespecies.org:taxname:1676697)
accepted
Species
Carex olivacea subsp. confertiflora (Boott) T.Koyama · unaccepted
Carex olivacea var. angustior Kük. · unaccepted
terrestrial
(1858). Mem. Amer. Acad. Arts ser. 2, 6(2)
page(s): 418 [details]
page(s): 418 [details]
Holotype GH 00056388, geounit Japan
Holotype GH 00056388, geounit Japan [details]
Description Rhizome short, stoloniferous. Culms 60-95 cm tall, acutely triquetrous, winged on 3 angles, medium thick, clothed with...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Amer. Acad. Arts ser. 2, 6(2): 418. 1858 [1857-58 publ. 1858] to...
Description Rhizome short, stoloniferous. Culms 60-95 cm tall, acutely triquetrous, winged on 3 angles, medium thick, clothed with bladeless or shortly bladed sheaths at base, and with 1 or 2 leaves on upper part. Leaves slightly shorter than culm, uppermost leaf usually longer than culm, blades 8-12 mm wide, flat, with 2 distinct lateral veins, smooth on both surfaces, scabrous on margins, sheathed, lower sheaths usually dehiscent. Involucral bracts leaflike, longer than subtending spike, upper involucral bracts narrow, nearly not sheathed. Spikes 4-6, ± contiguous at upper part of culm; terminal spike male, cylindric or narrowly cylindric, 4-8 cm, shortly pedunculate; lateral spikes female, cylindric, (2-)3.5-8 cm, densely many flowered, lower 1 or 2 spikes shortly pedunculate, upper spikes nearly sessile. Female glumes ferruginous, narrowly oblong or narrowly oblong-ovate, 3-3.5 mm, membranous, green 1-veined, apex attenuate, awned. Utricles ferruginous, slightly shorter than glume, horizontally patent at maturity, ovate or subobovate, trigonous, ca. 3 mm, membranous, glabrous, several veined abaxially, base broadly cuneate, apex attenuate into a short beak, beak straight or slightly recurved, obliquely truncate or sometimes shortly 2-toothed at orifice. Nutlets brown at maturity, rather loosely enveloped, subobovate, trigonous, ca. 2 mm, base estipitate, apex with torsional mucro; stigmas 3. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Amer. Acad. Arts ser. 2, 6(2): 418. 1858 [1857-58 publ. 1858] to...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Amer. Acad. Arts ser. 2, 6(2): 418. 1858 [1857-58 publ. 1858] to Mem. Amer. Acad. Arts , n.s., 6: 418 (1859), 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 confertiflora Boott. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676697 on 2025-09-13
Date
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by
2024-12-10 11:47:54Z
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db_admin
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Nomenclature
original description
(1858). Mem. Amer. Acad. Arts ser. 2, 6(2)
page(s): 418 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 418 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Description Rhizome short, stoloniferous. Culms 60-95 cm tall, acutely triquetrous, winged on 3 angles, medium thick, clothed with bladeless or shortly bladed sheaths at base, and with 1 or 2 leaves on upper part. Leaves slightly shorter than culm, uppermost leaf usually longer than culm, blades 8-12 mm wide, flat, with 2 distinct lateral veins, smooth on both surfaces, scabrous on margins, sheathed, lower sheaths usually dehiscent. Involucral bracts leaflike, longer than subtending spike, upper involucral bracts narrow, nearly not sheathed. Spikes 4-6, ± contiguous at upper part of culm; terminal spike male, cylindric or narrowly cylindric, 4-8 cm, shortly pedunculate; lateral spikes female, cylindric, (2-)3.5-8 cm, densely many flowered, lower 1 or 2 spikes shortly pedunculate, upper spikes nearly sessile. Female glumes ferruginous, narrowly oblong or narrowly oblong-ovate, 3-3.5 mm, membranous, green 1-veined, apex attenuate, awned. Utricles ferruginous, slightly shorter than glume, horizontally patent at maturity, ovate or subobovate, trigonous, ca. 3 mm, membranous, glabrous, several veined abaxially, base broadly cuneate, apex attenuate into a short beak, beak straight or slightly recurved, obliquely truncate or sometimes shortly 2-toothed at orifice. Nutlets brown at maturity, rather loosely enveloped, subobovate, trigonous, ca. 2 mm, base estipitate, apex with torsional mucro; stigmas 3. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Amer. Acad. Arts ser. 2, 6(2): 418. 1858 [1857-58 publ. 1858] to Mem. Amer. Acad. Arts , n.s., 6: 418 (1859), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (12 publications)
To European Nucleotide Archive, ENA (Carex olivacea subsp. confertiflora) (from synonym Carex olivacea subsp. confertiflora (Boott) T.Koyama)
To GenBank (5 nucleotides; 1 proteins) (from synonym Carex olivacea subsp. confertiflora (Boott) T.Koyama)
To GenBank (5 nucleotides; 1 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex olivacea subsp. confertiflora (Boott) T.Koyama)
To International Plant Names Index (IPNI) (from synonym Carex olivacea var. angustior Kük.)
To Plants of the World Online (from synonym Carex olivacea var. angustior Kük.)
To Plants of the World Online (from synonym Carex olivacea subsp. confertiflora (Boott) T.Koyama)
To Plants of the World Online
To US Herbarium (Carex confertiflora US27235 type 1)
To European Nucleotide Archive, ENA (Carex olivacea subsp. confertiflora) (from synonym Carex olivacea subsp. confertiflora (Boott) T.Koyama)
To GenBank (5 nucleotides; 1 proteins) (from synonym Carex olivacea subsp. confertiflora (Boott) T.Koyama)
To GenBank (5 nucleotides; 1 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex olivacea subsp. confertiflora (Boott) T.Koyama)
To International Plant Names Index (IPNI) (from synonym Carex olivacea var. angustior Kük.)
To Plants of the World Online (from synonym Carex olivacea var. angustior Kük.)
To Plants of the World Online (from synonym Carex olivacea subsp. confertiflora (Boott) T.Koyama)
To Plants of the World Online
To US Herbarium (Carex confertiflora US27235 type 1)
From editor or global species database
Hosted externally
