Cyperaceae taxon details
Carex bitchuensis T.Hoshino & H.Ikeda
1678149 (urn:lsid:marinespecies.org:taxname:1678149)
accepted
Species
terrestrial
Hoshino, T.; Ikeda, H. (2003). A New Species of Carex (Cyperaceae), C. bitchuensis, from Okayama Prefecture, Japan. <em>Journal of Japanese Botany.</em> 78(1): 24-28.
page(s): 24 [details] Available for editors
[request]
page(s): 24 [details] Available for editors
[request]
Holotype OKAY
, geounit Japan
, geounit Japan
Holotype OKAY
, geounit Japan [details]
, geounit Japan [details]
Description Perennial herb. Rhizomes short-creeping, ascending， covered with gray-brown some what fibrous remains of leaf-sheaths....
Distribution JAPAN: Honshu (northwestern part of Okayama Pref.). Rare, on the rocks of limestone area, 200-500m. Endemic.
Okayama...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from J. Jap. Bot. 78(1): 24 (2003). to J. Jap. Bot. 78: 24 (2003),...
Description Perennial herb. Rhizomes short-creeping, ascending， covered with gray-brown some what fibrous remains of leaf-sheaths. Leaf blade linear， nearly flat ， 7-12 cm long when anthesis， elongating after anthesis， 2.5-3 mm wide， margins slightly scabrous; basal sheaths ferrugineous to castaneous， splitting into parallel fibres. Culms 12-23 cm tall ， almost same as tall as or slightly taller than basalleaves， slightly scabrous on upper portion. Spikes 3 or 4， erect; terminal spike staminate， linear-clavate， 15-20 mm long，1. 5-3 (-3.5) mm wide， taller than lower spikes; staminate scales narrowly elliptic to broadly oblanceolate， 6-7 mm long， 1.4-2.2 mm wide， apex acute or short -awned， centre pale castaneous to ferrugineous， margins hyaline and whitish; lateral spikes pistillate， linear， 5-15 mm long， loose1y 2-5-flowered; pistillate scales ovate to broadly ovate， 3-3.5 mm long， 2-2.5 mm wide， apex acuminate or awned， centre pale castaneous to ferrugineous，margins hyaline and whitish; bract at base of pistillate spike spathaceous, bladeless， 5-18 mm long， apex short-awned， pale castaneous to ferrugineous except hyaline whitish margins; prophyll spathaceous， surrounding pistillate spike， hyaline， glabrous; peduncles slightly exserted from bract， pubescent. tinctly Stamens 3; filament filiform， 3.5-4 mm long; anther linear， ca. 3 mm long， 0.2-0.4 mm wide. Ovary 1， enclosed in a perigynium， narrowly obovate，1-1. 2 mm long， 0.5-0.7 mm wide， indistrigonous， 1-ovulate; ovule orthotropous; style 1， 3-fid， filiform， plumose， 4-5 mm long， deciduous at fruiting. Perigynium obovoid， with a thick oblique stipe， 2.4-2.6 mm long， 0.8-1.2 mm wide， indistinctly trigonous， obsoletely thick nerved， densely short-pubescent; beak very short， 0.1-0.2 mm long， abruptly recurved， ferrugineous， apex entire. Achene enclosed in a perigynium， trigonous， 2.2-2.4 mm long， 0.7-1. 1 mm wide， glabrous. [details]
Distribution JAPAN: Honshu (northwestern part of Okayama Pref.). Rare, on the rocks of limestone area, 200-500m. Endemic.
Okayama...
Distribution JAPAN: Honshu (northwestern part of Okayama Pref.). Rare, on the rocks of limestone area, 200-500m. Endemic.
Okayama Pref. 岡山県
https://maps.app.goo.gl/M83K7LKT42C9ZH3q8 [details]
Okayama Pref. 岡山県
https://maps.app.goo.gl/M83K7LKT42C9ZH3q8 [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from J. Jap. Bot. 78(1): 24 (2003). to J. Jap. Bot. 78: 24 (2003),...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from J. Jap. Bot. 78(1): 24 (2003). to J. Jap. Bot. 78: 24 (2003), 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 bitchuensis T.Hoshino & H.Ikeda. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1678149 on 2025-09-14
Date
action
by
2024-12-10 11:47:54Z
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db_admin
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Nomenclature
original description
Hoshino, T.; Ikeda, H. (2003). A New Species of Carex (Cyperaceae), C. bitchuensis, from Okayama Prefecture, Japan. <em>Journal of Japanese Botany.</em> 78(1): 24-28.
page(s): 24 [details] Available for editors [request]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 24 [details] Available for editors
[request]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
Additional information 2n=36 [details]Description Perennial herb. Rhizomes short-creeping, ascending， covered with gray-brown some what fibrous remains of leaf-sheaths. Leaf blade linear， nearly flat ， 7-12 cm long when anthesis， elongating after anthesis， 2.5-3 mm wide， margins slightly scabrous; basal sheaths ferrugineous to castaneous， splitting into parallel fibres. Culms 12-23 cm tall ， almost same as tall as or slightly taller than basalleaves， slightly scabrous on upper portion. Spikes 3 or 4， erect; terminal spike staminate， linear-clavate， 15-20 mm long，1. 5-3 (-3.5) mm wide， taller than lower spikes; staminate scales narrowly elliptic to broadly oblanceolate， 6-7 mm long， 1.4-2.2 mm wide， apex acute or short -awned， centre pale castaneous to ferrugineous， margins hyaline and whitish; lateral spikes pistillate， linear， 5-15 mm long， loose1y 2-5-flowered; pistillate scales ovate to broadly ovate， 3-3.5 mm long， 2-2.5 mm wide， apex acuminate or awned， centre pale castaneous to ferrugineous，margins hyaline and whitish; bract at base of pistillate spike spathaceous, bladeless， 5-18 mm long， apex short-awned， pale castaneous to ferrugineous except hyaline whitish margins; prophyll spathaceous， surrounding pistillate spike， hyaline， glabrous; peduncles slightly exserted from bract， pubescent. tinctly Stamens 3; filament filiform， 3.5-4 mm long; anther linear， ca. 3 mm long， 0.2-0.4 mm wide. Ovary 1， enclosed in a perigynium， narrowly obovate，1-1. 2 mm long， 0.5-0.7 mm wide， indistrigonous， 1-ovulate; ovule orthotropous; style 1， 3-fid， filiform， plumose， 4-5 mm long， deciduous at fruiting. Perigynium obovoid， with a thick oblique stipe， 2.4-2.6 mm long， 0.8-1.2 mm wide， indistinctly trigonous， obsoletely thick nerved， densely short-pubescent; beak very short， 0.1-0.2 mm long， abruptly recurved， ferrugineous， apex entire. Achene enclosed in a perigynium， trigonous， 2.2-2.4 mm long， 0.7-1. 1 mm wide， glabrous. [details]
Distribution JAPAN: Honshu (northwestern part of Okayama Pref.). Rare, on the rocks of limestone area, 200-500m. Endemic.
Okayama Pref. 岡山県
https://maps.app.goo.gl/M83K7LKT42C9ZH3q8 [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from J. Jap. Bot. 78(1): 24 (2003). to J. Jap. Bot. 78: 24 (2003), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
| Language | Name | |
|---|---|---|
| Japanese | ビッチュウヒカゲスゲ（Bitchu-hikage-suge） | [details] |
To International Plant Names Index (IPNI)
To Plants of the World Online
To University of Tokyo Herbarium (Carex bitchuensis type TI00010034)
To Plants of the World Online
To University of Tokyo Herbarium (Carex bitchuensis type TI00010034)
From editor or global species database
Hosted externally
