Cyperaceae taxon details
Carex bilateralis Hayata
1678144 (urn:lsid:marinespecies.org:taxname:1678144)
accepted
Species
Carex acrophila S.T.Blake · unaccepted
Carex asperinervis T.Koyama · unaccepted
Carex kotoensis Hayata · unaccepted
Carex spathaceobracteata Kük. · unaccepted
Carex subteinogyna Ohwi · unaccepted
terrestrial
Hayata, B. (1911). Materials for a Flora of Formosa. <em>The journal of the College of Science, Imperial University of Tokyo, Japan.</em> 30(1): 1-471., available online at https://www.biodiversitylibrary.org/page/39205437#page/15/mode/1up
page(s): 380 [details]
page(s): 380 [details]
Description Rhizome short, without stolons. Culms densely tufted, 40-60 cm tall, triquetrous, scabrous on upper part of angles, clothed...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from J. Coll. Sci. Imp. Univ. Tokyo 30(Art. 1): 380. 1911 [20 Jun 1911] ...
Description Rhizome short, without stolons. Culms densely tufted, 40-60 cm tall, triquetrous, scabrous on upper part of angles, clothed with dark brown sheaths at base, rudimentary sheaths usually disintegrating into fibers. Leaves basal, much shorter than culm, blades 2-3 mm wide, flat, ± stiff, scabrous on upper surface, rather shortly sheathed. Involucral bracts shorter than spike, lower ones shortly leaflike, upper ones setaceous, sheathed, lower sheaths slightly long. Spikes 5-8, 1-3 in an involucral bract sheath, upper spikes contiguous, lower spikes rather spaced, androgynous, narrowly lanceolate, 10-15 mm, male part shorter than female part, female part somewhat laxly flowered; peduncles mostly long and slender, upper peduncles rather short. Female glumes yellow-brown, narrowly oblong, costate, margins white hyaline, apex acute or obtuse, muticous. Utricles brown, suberect, equaling or slightly shorter than glume, elliptic, compressed trigonous, ca. 4 mm, membranous, thinly several veined, base abruptly contracted into a short stipe, margins hispidulous, apex gradually narrowed to a medium-sized beak, orifice 2-toothed. Nutlets tightly enveloped, elliptic, compressed biconvex, ca. 2 mm; style slightly short, base thickened; stigmas 2, rather long, persistent. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from J. Coll. Sci. Imp. Univ. Tokyo 30(Art. 1): 380. 1911 [20 Jun 1911] ...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from J. Coll. Sci. Imp. Univ. Tokyo 30(Art. 1): 380. 1911 [20 Jun 1911] to J. Coll. Sci. Imp. Univ. Tokyo 30(1): 380 (1911), information provided by Alan E. on email Jun. 07 2021 More details could be fou [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex bilateralis Hayata. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1678144 on 2025-09-12
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
Hayata, B. (1911). Materials for a Flora of Formosa. <em>The journal of the College of Science, Imperial University of Tokyo, Japan.</em> 30(1): 1-471., available online at https://www.biodiversitylibrary.org/page/39205437#page/15/mode/1up
page(s): 380 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 380 [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, without stolons. Culms densely tufted, 40-60 cm tall, triquetrous, scabrous on upper part of angles, clothed with dark brown sheaths at base, rudimentary sheaths usually disintegrating into fibers. Leaves basal, much shorter than culm, blades 2-3 mm wide, flat, ± stiff, scabrous on upper surface, rather shortly sheathed. Involucral bracts shorter than spike, lower ones shortly leaflike, upper ones setaceous, sheathed, lower sheaths slightly long. Spikes 5-8, 1-3 in an involucral bract sheath, upper spikes contiguous, lower spikes rather spaced, androgynous, narrowly lanceolate, 10-15 mm, male part shorter than female part, female part somewhat laxly flowered; peduncles mostly long and slender, upper peduncles rather short. Female glumes yellow-brown, narrowly oblong, costate, margins white hyaline, apex acute or obtuse, muticous. Utricles brown, suberect, equaling or slightly shorter than glume, elliptic, compressed trigonous, ca. 4 mm, membranous, thinly several veined, base abruptly contracted into a short stipe, margins hispidulous, apex gradually narrowed to a medium-sized beak, orifice 2-toothed. Nutlets tightly enveloped, elliptic, compressed biconvex, ca. 2 mm; style slightly short, base thickened; stigmas 2, rather long, persistent. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from J. Coll. Sci. Imp. Univ. Tokyo 30(Art. 1): 380. 1911 [20 Jun 1911] to J. Coll. Sci. Imp. Univ. Tokyo 30(1): 380 (1911), information provided by Alan E. on email Jun. 07 2021 More details could be fou [details]
To Biodiversity Heritage Library (10 publications)
To Biodiversity Heritage Library (3 publications) (from synonym Carex acrophila S.T.Blake)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex asperinervis T.Koyama)
To International Plant Names Index (IPNI) (from synonym Carex kotoensis Hayata)
To International Plant Names Index (IPNI) (from synonym Carex spathaceobracteata Kük.)
To International Plant Names Index (IPNI) (from synonym Carex acrophila S.T.Blake)
To International Plant Names Index (IPNI) (from synonym Carex subteinogyna Ohwi)
To Plants of the World Online (from synonym Carex subteinogyna Ohwi)
To Plants of the World Online (from synonym Carex spathaceobracteata Kük.)
To Plants of the World Online (from synonym Carex kotoensis Hayata)
To Plants of the World Online
To Plants of the World Online (from synonym Carex asperinervis T.Koyama)
To Plants of the World Online (from synonym Carex acrophila S.T.Blake)
To Taiwan Forestry Research Institute (Carex bilateralis TAIF4537 type 1)
To University of Tokyo Herbarium (Carex bilateralis type TI00010033)
To Biodiversity Heritage Library (3 publications) (from synonym Carex acrophila S.T.Blake)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex asperinervis T.Koyama)
To International Plant Names Index (IPNI) (from synonym Carex kotoensis Hayata)
To International Plant Names Index (IPNI) (from synonym Carex spathaceobracteata Kük.)
To International Plant Names Index (IPNI) (from synonym Carex acrophila S.T.Blake)
To International Plant Names Index (IPNI) (from synonym Carex subteinogyna Ohwi)
To Plants of the World Online (from synonym Carex subteinogyna Ohwi)
To Plants of the World Online (from synonym Carex spathaceobracteata Kük.)
To Plants of the World Online (from synonym Carex kotoensis Hayata)
To Plants of the World Online
To Plants of the World Online (from synonym Carex asperinervis T.Koyama)
To Plants of the World Online (from synonym Carex acrophila S.T.Blake)
To Taiwan Forestry Research Institute (Carex bilateralis TAIF4537 type 1)
To University of Tokyo Herbarium (Carex bilateralis type TI00010033)
From editor or global species database
Hosted externally
Hosted externally
