Cyperaceae taxon details
Carex hoozanensis Hayata
1676421 (urn:lsid:marinespecies.org:taxname:1676421)
accepted
Species
Carex hexinensis S.Yun Liang & Y.Z.Huang · unaccepted
terrestrial
Hayata, B. (1921). Icones Plantarum Formosanarum nec non et Contributiones ad Floram Formosanam. 10., available online at https://www.biodiversitylibrary.org/page/1149822#page/7/mode/1up
page(s): 67 [details]
page(s): 67 [details]
Holotype
Holotype [details]
Description Herbs perennial. Rhizome thick, obliquely ascending. Culms densely tufted, lateral 5-15(-20) cm tall, smooth, erect,...
Distribution JAPAN: The Ryukyus (Ishigaki Island). Rare, floors of evergreen broadleaved forests, 300-400 m.
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Icon. Pl. Formosan. 10: 67. 1921 [25 Mar 1921] to Icon. Pl. Formosan....
Description Herbs perennial. Rhizome thick, obliquely ascending. Culms densely tufted, lateral 5-15(-20) cm tall, smooth, erect, trigonous. Leaves far longer than culms; leaf-blade greeen, flat, 5-15 mm wide; sheaths yellowish brown, bladed apex. Involucral bract shortly leaf-like, slightly shorter than inflorescence, shortly sheathed; sheaths 2-5 mm long, obliquely truncate at orifice. Inflorescence paniculate, with 2 or 3 spikes; terminal spike staminate, linear-cylindrical, 1.5-2 cm long, ca. 2 mm wide, subsessile or shortly pedunculate; peduncles slightly exserted from sheaths, or enclosed. Staminate scales pale green, ovate-elliptic, 3.5-4.5 mm long, acuminate at apex, green 1-veined costa on dorsal surface. Pistillate scales ovate, pale green, 3.5-4 mm long, acuminate at apex, grreen 3-veined costa on dorsal surface. Perigynia ovoid or broadly ovoid (excluding beak), 7-7.5 mm long, longer than pistillate scales (including beak), patent, obtusely trigonous, herbaceous, pale green, distinctly veined, glabrous or nearly glabrous, gradually contracted into a beak; orifice 2-lobed with short teeth. Stigmas 3; stle thicken at base. Achenes tightly enveloped, rhombic-ovoid, trigonous, 4-5 mm long (including beak), yellowish brown or castaneous, with 3 angles contricted at middle, sides concave above and below, shortly curved, stipitate at base, abruptly contracted into a short beak at apex, brak erect, annulate at orifice. [details]
Distribution JAPAN: The Ryukyus (Ishigaki Island). Rare, floors of evergreen broadleaved forests, 300-400 m.
Distribution JAPAN: The Ryukyus (Ishigaki Island). Rare, floors of evergreen broadleaved forests, 300-400 m. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Icon. Pl. Formosan. 10: 67. 1921 [25 Mar 1921] to Icon. Pl. Formosan....
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Icon. Pl. Formosan. 10: 67. 1921 [25 Mar 1921] to Icon. Pl. Formosan. 10: 67 (1921), 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 hoozanensis Hayata. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676421 on 2025-09-13
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
Hayata, B. (1921). Icones Plantarum Formosanarum nec non et Contributiones ad Floram Formosanam. 10., available online at https://www.biodiversitylibrary.org/page/1149822#page/7/mode/1up
page(s): 67 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 67 [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]
additional source Jin, X. F. & Chao-Zhong, Z. (2013). Taxonomy of Carex sect. Rhomboidales (Cyperaceae). [details] Available for editors [request]
[request]additional source Jin, X. F. & Chao-Zhong, Z. (2013). Taxonomy of Carex sect. Rhomboidales (Cyperaceae). [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
Holotype [details]
From editor or global species database
Description Herbs perennial. Rhizome thick, obliquely ascending. Culms densely tufted, lateral 5-15(-20) cm tall, smooth, erect, trigonous. Leaves far longer than culms; leaf-blade greeen, flat, 5-15 mm wide; sheaths yellowish brown, bladed apex. Involucral bract shortly leaf-like, slightly shorter than inflorescence, shortly sheathed; sheaths 2-5 mm long, obliquely truncate at orifice. Inflorescence paniculate, with 2 or 3 spikes; terminal spike staminate, linear-cylindrical, 1.5-2 cm long, ca. 2 mm wide, subsessile or shortly pedunculate; peduncles slightly exserted from sheaths, or enclosed. Staminate scales pale green, ovate-elliptic, 3.5-4.5 mm long, acuminate at apex, green 1-veined costa on dorsal surface. Pistillate scales ovate, pale green, 3.5-4 mm long, acuminate at apex, grreen 3-veined costa on dorsal surface. Perigynia ovoid or broadly ovoid (excluding beak), 7-7.5 mm long, longer than pistillate scales (including beak), patent, obtusely trigonous, herbaceous, pale green, distinctly veined, glabrous or nearly glabrous, gradually contracted into a beak; orifice 2-lobed with short teeth. Stigmas 3; stle thicken at base. Achenes tightly enveloped, rhombic-ovoid, trigonous, 4-5 mm long (including beak), yellowish brown or castaneous, with 3 angles contricted at middle, sides concave above and below, shortly curved, stipitate at base, abruptly contracted into a short beak at apex, brak erect, annulate at orifice. [details]Distribution JAPAN: The Ryukyus (Ishigaki Island). Rare, floors of evergreen broadleaved forests, 300-400 m. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Icon. Pl. Formosan. 10: 67. 1921 [25 Mar 1921] to Icon. Pl. Formosan. 10: 67 (1921), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
| Language | Name | |
|---|---|---|
| Japanese | ホウオウザンスゲ（Howozansuge） | [details] |
To Biodiversity Heritage Library (1 publication) (from synonym Carex hexinensis S.Yun Liang & Y.Z.Huang)
To Biodiversity Heritage Library (2 publications)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex hexinensis S.Yun Liang & Y.Z.Huang)
To Plants of the World Online (from synonym Carex hexinensis S.Yun Liang & Y.Z.Huang)
To Plants of the World Online
To Taiwan Forestry Research Institute (Carex hoozanensis TAIF4618 type 1)
To Taiwan Forestry Research Institute (Carex hoozanensis TAIF4619 type 1)
To University of Tokyo Herbarium (Carex hoozanensis type TI00010107)
To Biodiversity Heritage Library (2 publications)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex hexinensis S.Yun Liang & Y.Z.Huang)
To Plants of the World Online (from synonym Carex hexinensis S.Yun Liang & Y.Z.Huang)
To Plants of the World Online
To Taiwan Forestry Research Institute (Carex hoozanensis TAIF4618 type 1)
To Taiwan Forestry Research Institute (Carex hoozanensis TAIF4619 type 1)
To University of Tokyo Herbarium (Carex hoozanensis type TI00010107)
From editor or global species database
Hosted externally
Hosted externally
Hosted externally
