Cyperaceae taxon details
Carex subtransversa C.B.Clarke
1676121 (urn:lsid:marinespecies.org:taxname:1676121)
accepted
Species
Carex hayatana Honda · unaccepted
Carex kawakamii Hayata · unaccepted
Carex pseudojaponica Hayata · unaccepted
terrestrial
Clarke, C. B. (1907). Cyperaceae in the Philippines: a list of the species in the Kew Herbarium. Philippine Journal of Science, 2(Sect. C. Bot.): 77-110.
page(s): 108 [details]
page(s): 108 [details]
Description Rhizome short, with slender stolons. Culms densely tufted, 15-30 cm tall, slightly slender, triquetrous, scabrous on upper...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Philipp. J. Sci., C 2: 108. 1907 to Philipp. J. Sci., C 2: 108...
Description Rhizome short, with slender stolons. Culms densely tufted, 15-30 cm tall, slightly slender, triquetrous, scabrous on upper angles, clothed with few brownish and bladeless sheaths at base. Leaves usually shorter than culm, blades 2-4 mm wide, flat, slightly stiff, distinctly 2-veined laterally, rather long sheathed. Lower involucral bracts leaflike, longer than subtending spike, upper involucral bracts linear, rather short, usually not sheathing. Spikes 3-5, lower 1 or 2 rather remote, upper 2 or 3 rather congregate; terminal spike male, linear, 1-5 cm, shortly pedunculate; lateral spikes female, shortly cylindric or suboblong, 1-3 cm, densely many flowered, sometimes with few male flowers, lower ones shortly pedunculate, upper ones nearly sessile. Male glumes brownish, lanceolate, 2-2.5 mm, thickly papery, 1-veined, apex acute, mucronate; female glumes brownish, oblong-ovate, 2-2.5 mm, papery, 1-veined, apex acute, mucronate. Utricles green or yellowish green, suberect, elliptic, trigonous, 3-3.5 mm, membranous, glabrous, many veined, base broadly cuneate or subrounded, apex abruptly attenuate into a slightly long beak, orifice shortly 2-toothed. Nutlets loosely enclosed, broadly ovate, trigonous, 1-1.5 mm; style base not thickened; stigmas 3. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Philipp. J. Sci., C 2: 108. 1907 to Philipp. J. Sci., C 2: 108...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Philipp. J. Sci., C 2: 108. 1907 to Philipp. J. Sci., C 2: 108 (1907), 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 subtransversa C.B.Clarke. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1676121 on 2025-09-11
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2024-12-10 11:47:54Z
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db_admin
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Nomenclature
original description
Clarke, C. B. (1907). Cyperaceae in the Philippines: a list of the species in the Kew Herbarium. Philippine Journal of Science, 2(Sect. C. Bot.): 77-110.
page(s): 108 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 108 [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
Isotype NY 00011588, geounit Luzon [details]
From editor or global species database
Description Rhizome short, with slender stolons. Culms densely tufted, 15-30 cm tall, slightly slender, triquetrous, scabrous on upper angles, clothed with few brownish and bladeless sheaths at base. Leaves usually shorter than culm, blades 2-4 mm wide, flat, slightly stiff, distinctly 2-veined laterally, rather long sheathed. Lower involucral bracts leaflike, longer than subtending spike, upper involucral bracts linear, rather short, usually not sheathing. Spikes 3-5, lower 1 or 2 rather remote, upper 2 or 3 rather congregate; terminal spike male, linear, 1-5 cm, shortly pedunculate; lateral spikes female, shortly cylindric or suboblong, 1-3 cm, densely many flowered, sometimes with few male flowers, lower ones shortly pedunculate, upper ones nearly sessile. Male glumes brownish, lanceolate, 2-2.5 mm, thickly papery, 1-veined, apex acute, mucronate; female glumes brownish, oblong-ovate, 2-2.5 mm, papery, 1-veined, apex acute, mucronate. Utricles green or yellowish green, suberect, elliptic, trigonous, 3-3.5 mm, membranous, glabrous, many veined, base broadly cuneate or subrounded, apex abruptly attenuate into a slightly long beak, orifice shortly 2-toothed. Nutlets loosely enclosed, broadly ovate, trigonous, 1-1.5 mm; style base not thickened; stigmas 3. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Philipp. J. Sci., C 2: 108. 1907 to Philipp. J. Sci., C 2: 108 (1907), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (1 publication) (from synonym Carex hayatana Honda)
To Biodiversity Heritage Library (3 publications) (from synonym Carex pseudojaponica Hayata)
To Biodiversity Heritage Library (7 publications)
To European Nucleotide Archive, ENA (Carex subtransversa)
To GenBank (5 nucleotides; 1 proteins)
To International Plant Names Index (IPNI) (from synonym Carex hayatana Honda)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex kawakamii Hayata)
To International Plant Names Index (IPNI) (from synonym Carex pseudojaponica Hayata)
To International Plant Names Index (IPNI) (from synonym Carex alopecuroides subsp. subtransversa (C.B.Clarke) T.Koyama)
To International Plant Names Index (IPNI) (from synonym Carex japonica subsp. subtransversa (C.B.Clarke) T.Koyama)
To Plants of the World Online (from synonym Carex japonica subsp. subtransversa (C.B.Clarke) T.Koyama)
To Plants of the World Online (from synonym Carex alopecuroides subsp. subtransversa (C.B.Clarke) T.Koyama)
To Plants of the World Online (from synonym Carex kawakamii Hayata)
To Plants of the World Online (from synonym Carex pseudojaponica Hayata)
To Plants of the World Online
To Plants of the World Online (from synonym Carex hayatana Honda)
To Taiwan Forestry Research Institute (Carex kawakamii TAIF4631 type 1) (from synonym Carex kawakamii Hayata)
To Taiwan Forestry Research Institute (Carex pseudo-japonica TAIF4674 type 1) (from synonym Carex pseudojaponica Hayata)
To Taiwan Forestry Research Institute (Carex pseudo-japonica TAIF4675 type 1) (from synonym Carex pseudojaponica Hayata)
To University of Tokyo Herbarium (Carex Kawakamii type TI00010133) (from synonym Carex kawakamii Hayata)
To University of Tokyo Herbarium (Carex pseudo-japonica type TI00010206) (from synonym Carex pseudojaponica Hayata)
To US Herbarium (Carex subtransversa US710428 type 1)
To Biodiversity Heritage Library (3 publications) (from synonym Carex pseudojaponica Hayata)
To Biodiversity Heritage Library (7 publications)
To European Nucleotide Archive, ENA (Carex subtransversa)
To GenBank (5 nucleotides; 1 proteins)
To International Plant Names Index (IPNI) (from synonym Carex hayatana Honda)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex kawakamii Hayata)
To International Plant Names Index (IPNI) (from synonym Carex pseudojaponica Hayata)
To International Plant Names Index (IPNI) (from synonym Carex alopecuroides subsp. subtransversa (C.B.Clarke) T.Koyama)
To International Plant Names Index (IPNI) (from synonym Carex japonica subsp. subtransversa (C.B.Clarke) T.Koyama)
To Plants of the World Online (from synonym Carex japonica subsp. subtransversa (C.B.Clarke) T.Koyama)
To Plants of the World Online (from synonym Carex alopecuroides subsp. subtransversa (C.B.Clarke) T.Koyama)
To Plants of the World Online (from synonym Carex kawakamii Hayata)
To Plants of the World Online (from synonym Carex pseudojaponica Hayata)
To Plants of the World Online
To Plants of the World Online (from synonym Carex hayatana Honda)
To Taiwan Forestry Research Institute (Carex kawakamii TAIF4631 type 1) (from synonym Carex kawakamii Hayata)
To Taiwan Forestry Research Institute (Carex pseudo-japonica TAIF4674 type 1) (from synonym Carex pseudojaponica Hayata)
To Taiwan Forestry Research Institute (Carex pseudo-japonica TAIF4675 type 1) (from synonym Carex pseudojaponica Hayata)
To University of Tokyo Herbarium (Carex Kawakamii type TI00010133) (from synonym Carex kawakamii Hayata)
To University of Tokyo Herbarium (Carex pseudo-japonica type TI00010206) (from synonym Carex pseudojaponica Hayata)
To US Herbarium (Carex subtransversa US710428 type 1)
