Cyperaceae taxon details
Carex pisiformis Boott
1677977 (urn:lsid:marinespecies.org:taxname:1677977)
accepted
Species
Carex ×dandoensis T.Koyama · unaccepted > junior subjective synonym
Carex amphora Franch. & Sav. · unaccepted
Carex bauhwaensis Z.P.Wang · unaccepted
Carex clivorum Ohwi · unaccepted > junior subjective synonym
Carex hezhouensis H.Wang & S.N.Wang · unaccepted > junior subjective synonym
Carex indistincta H.Lév. & Vaniot · unaccepted > junior subjective synonym
Carex pisiformis var. pallescens Kük. · unaccepted
Carex pisiformis var. pisiformis Boott · unaccepted
Carex polyschoena H.Lév. & Vaniot · unaccepted > junior subjective synonym
Carex polyschoenoides K.T.Fu · unaccepted > junior subjective synonym
Carex polyschoenoides var. fractiflexa Y.C.Yang · unaccepted
Carex tenuissima Boott · unaccepted
- Forma Carex pisiformis f. iwakiana (Ohwi) T.Koyama accepted as Carex sachalinensis var. iwakiana Ohwi
- Forma Carex pisiformis f. musashiensis (Hiyama) T.Koyama accepted as Carex alterniflora var. alterniflora Franch.
- Forma Carex pisiformis f. polyschoena (H.Lév. & Vaniot) Kük. accepted as Carex polyschoena H.Lév. & Vaniot accepted as Carex pisiformis Boott
- Variety Carex pisiformis var. alterniflora (Franch.) T.Koyama accepted as Carex alterniflora Franch.
- Variety Carex pisiformis var. aureobrunnea (Ohwi) T.Koyama accepted as Carex alterniflora var. aureobrunnea Ohwi
- Variety Carex pisiformis var. cuneata (Ohwi) T.Koyama accepted as Carex stenostachys var. cuneata (Ohwi) Ohwi & T.Koyama
- Variety Carex pisiformis var. duvaliana (Franch. & Sav.) T.Koyama accepted as Carex duvaliana Franch. & Sav.
- Variety Carex pisiformis var. ebracteata (Trautv.) Kük. accepted as Carex trautvetteriana Kom.
- Variety Carex pisiformis var. elongatula (Ohwi) T.Koyama accepted as Carex alterniflora var. elongatula Ohwi
- Variety Carex pisiformis var. fernaldiana (H.Lév. & Vaniot) T.Koyama accepted as Carex fernaldiana H.Lév. & Vaniot
- Variety Carex pisiformis var. fulva (Ohwi) T.Koyama accepted as Carex alterniflora var. fulva Ohwi
- Variety Carex pisiformis var. koreana (Nakai) T.Koyama accepted as Carex fernaldiana H.Lév. & Vaniot
- Variety Carex pisiformis var. longiuscula (Ohwi) T.Koyama accepted as Carex sachalinensis var. longiuscula Ohwi
- Variety Carex pisiformis var. major (Kük.) T.Koyama accepted as Carex capilliformis Franch.
- Variety Carex pisiformis var. mayebarana (Ohwi) T.Koyama accepted as Carex mayebarana Ohwi
- Variety Carex pisiformis var. pallescens Kük. accepted as Carex pisiformis Boott
- Variety Carex pisiformis var. pineticola (Ohwi) T.Koyama accepted as Carex sachalinensis var. iwakiana Ohwi
- Variety Carex pisiformis var. pisiformis Boott accepted as Carex pisiformis Boott
- Variety Carex pisiformis var. sachalinensis (F.Schmidt) Kük. ex Matsum. accepted as Carex sachalinensis F.Schmidt
- Variety Carex pisiformis var. sikokiana (Franch. & Sav.) T.Koyama accepted as Carex sikokiana Franch. & Sav.
- Variety Carex pisiformis var. subebracteata Kük. accepted as Carex subumbellata Meinsh. (unaccepted > junior subjective synonym)
terrestrial
Gray, A. (1856). Descriptions of the botanical specimens. <em>Narrative of the Expedition of an American Squadron to the China Seas and Japan: performed in the years 1852, 1853, and 1854.</em> 305-337., available online at https://www.biodiversitylibrary.org/page/33621095#page/373/mode/1up
page(s): 324 [details]
page(s): 324 [details]
Description Rhizomes shortened or obliquely ascending, woody, sometimes with short creeping rhizomes; culms loosely tufted or densely...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Narr. Exped. China Japan [Perry] 2: 324. 1856 to Narr. Exped. China...
Description Rhizomes shortened or obliquely ascending, woody, sometimes with short creeping rhizomes; culms loosely tufted or densely tufted, central, 15–60 cm tall, obtusely trigonous, rather slender, smooth or slightly rough, with basal persistent leaf sheaths pale yellow-brown, rusty brown or purple-brown, splitting into fibrous strips; leaves shorter than or longer than the culms; leaf blades 1.5–3.5 mm wide, herbaceous, spreading, rough on the abaxial surface and along the margins; lower bracts leaf-like, longer than the spikes, upper bracts short leaf-like or bristle-like, nearly as long as or shorter than the spikes, with sheaths 0.5–1.8 cm long; spikes 2–5, distant from one another; terminal spike male, club-shaped, cylindric, 1.5–4 cm long, 1.5–3 mm wide, with a peduncle at the base; lateral spikes female, sometimes with a few male flowers at the tip, cylindric or slender cylindric, 1–3 cm long, 2–3 mm wide, flowers somewhat densely arranged, spike peduncles enclosed within the bract sheaths or slightly exserted; male glumes oblanceolate or long-oblong-oblanceolate, 6–6.5 mm long, yellowish white or greenish white, rarely light brown, apex acute, sometimes with a short point, with a single yellowish white midrib on the back; female glumes obovate or broadly obovate, 2.2–2.5 mm long, greenish white or light brown, apex acute, with a short point or short awn, with 3 green midribs on the back; utricles obovoid, obtusely trigonous, 3–4 mm long, longer than the female glumes, pale yellow-green, membranous, with numerous fine veins, sparsely covered with short soft hairs, base gradually narrowed into a short stalk, apex gradually narrowed into a short beak 0.6–0.8 mm long, sometimes conical, beak mouth with 2 small teeth; nutlets tightly enclosed within the utricles, obovoid, trigonous, 1.8–2.5 mm long, chestnut-brown or light brown, apex abruptly constricted into an annular disc, or the disc slightly inconspicuous, base with a short stalk; base of style thickened; stigmas 3 [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Narr. Exped. China Japan [Perry] 2: 324. 1856 to Narr. Exped. China...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Narr. Exped. China Japan [Perry] 2: 324. 1856 to Narr. Exped. China Japan 2: 324 (1857), 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 pisiformis Boott. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1677977 on 2025-11-26
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Nomenclature
original description
Gray, A. (1856). Descriptions of the botanical specimens. <em>Narrative of the Expedition of an American Squadron to the China Seas and Japan: performed in the years 1852, 1853, and 1854.</em> 305-337., available online at https://www.biodiversitylibrary.org/page/33621095#page/373/mode/1up
page(s): 324 [details]
original description (of Carex indistincta H.Lév. & Vaniot) Leveille, H. (1908). Decades plantarum novarum VII. <em>Repertorium specierum novarum regni vegetabilis.</em> 5: 194-195., available online at https://www.biodiversitylibrary.org/page/232544#page/220/mode/1up
page(s): 194 [details]
original description (of Carex clivorum Ohwi) Ohwi, J. (1934). Plantae Novae Japonicae. <em>Repertorium specierum novarum regni vegetabilis.</em> 36: 39-58.
page(s): 42 [details] Available for editors
[request]
original description (of Carex hezhouensis H.Wang & S.N.Wang) Wang, H. et. al. (2005). Carex hezhouensis, a new species of Cyperaceae frim Guangxi, China. <em>Guihaia.</em> 25(2): 105.
page(s): 105 [details] Available for editors
[request]
original description (of Carex polyschoenoides K.T.Fu) (1976). <em>Flora Tsinlingensis.</em> 1(1).
page(s): 444 [details]
original description (of Carex polyschoena H.Lév. & Vaniot) Léveillé, H.; Vaniot, E. (1903). Carex du Japon. <em>Bulletin de l'Académie internationale de géographie botanique.</em> ser 3, 12(158): 9., available online at https://www.biodiversitylibrary.org/page/4543391#page/21/mode/1up
page(s): 9 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 324 [details]
original description (of Carex indistincta H.Lév. & Vaniot) Leveille, H. (1908). Decades plantarum novarum VII. <em>Repertorium specierum novarum regni vegetabilis.</em> 5: 194-195., available online at https://www.biodiversitylibrary.org/page/232544#page/220/mode/1up
page(s): 194 [details]
original description (of Carex clivorum Ohwi) Ohwi, J. (1934). Plantae Novae Japonicae. <em>Repertorium specierum novarum regni vegetabilis.</em> 36: 39-58.
page(s): 42 [details] Available for editors
original description (of Carex hezhouensis H.Wang & S.N.Wang) Wang, H. et. al. (2005). Carex hezhouensis, a new species of Cyperaceae frim Guangxi, China. <em>Guihaia.</em> 25(2): 105.
page(s): 105 [details] Available for editors
original description (of Carex polyschoenoides K.T.Fu) (1976). <em>Flora Tsinlingensis.</em> 1(1).
page(s): 444 [details]
original description (of Carex polyschoena H.Lév. & Vaniot) Léveillé, H.; Vaniot, E. (1903). Carex du Japon. <em>Bulletin de l'Académie internationale de géographie botanique.</em> ser 3, 12(158): 9., available online at https://www.biodiversitylibrary.org/page/4543391#page/21/mode/1up
page(s): 9 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
Taxonomy
taxonomy source
Jin, X. F., Lu, Y. F. (2024). Taxonomy of Carex sect. Mitratae s.l. (Cyperaceae). [details] Available for editors
[request]
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]
Present
Inaccurate
Introduced: alien
Containing type locality
Syntype (of Carex polyschoena H.Lév. & Vaniot) P 00294144, geounit Japan [details]
From editor or global species database
Description Rhizomes shortened or obliquely ascending, woody, sometimes with short creeping rhizomes; culms loosely tufted or densely tufted, central, 15–60 cm tall, obtusely trigonous, rather slender, smooth or slightly rough, with basal persistent leaf sheaths pale yellow-brown, rusty brown or purple-brown, splitting into fibrous strips; leaves shorter than or longer than the culms; leaf blades 1.5–3.5 mm wide, herbaceous, spreading, rough on the abaxial surface and along the margins; lower bracts leaf-like, longer than the spikes, upper bracts short leaf-like or bristle-like, nearly as long as or shorter than the spikes, with sheaths 0.5–1.8 cm long; spikes 2–5, distant from one another; terminal spike male, club-shaped, cylindric, 1.5–4 cm long, 1.5–3 mm wide, with a peduncle at the base; lateral spikes female, sometimes with a few male flowers at the tip, cylindric or slender cylindric, 1–3 cm long, 2–3 mm wide, flowers somewhat densely arranged, spike peduncles enclosed within the bract sheaths or slightly exserted; male glumes oblanceolate or long-oblong-oblanceolate, 6–6.5 mm long, yellowish white or greenish white, rarely light brown, apex acute, sometimes with a short point, with a single yellowish white midrib on the back; female glumes obovate or broadly obovate, 2.2–2.5 mm long, greenish white or light brown, apex acute, with a short point or short awn, with 3 green midribs on the back; utricles obovoid, obtusely trigonous, 3–4 mm long, longer than the female glumes, pale yellow-green, membranous, with numerous fine veins, sparsely covered with short soft hairs, base gradually narrowed into a short stalk, apex gradually narrowed into a short beak 0.6–0.8 mm long, sometimes conical, beak mouth with 2 small teeth; nutlets tightly enclosed within the utricles, obovoid, trigonous, 1.8–2.5 mm long, chestnut-brown or light brown, apex abruptly constricted into an annular disc, or the disc slightly inconspicuous, base with a short stalk; base of style thickened; stigmas 3 [details]Habitat growing at elevations of 60–2800 m in grass on forest margins, on roadside slopes, in rock crevices under forest, along stream gullies and in wetlands [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Narr. Exped. China Japan [Perry] 2: 324. 1856 to Narr. Exped. China Japan 2: 324 (1857), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
| Language | Name | |
|---|---|---|
| Japanese | ヤマオオイトスゲ(Yama-oo-itosuge) [from synonym]ホンモンジスゲ(Honmonji-suge)シロホンモンジスゲ(Shiro-honmonji-suge) [from synonym] | [details] |
To Biodiversity Heritage Library (1 publication) (from synonym Carex clivorum Ohwi)
To Biodiversity Heritage Library (14 publications)
To Biodiversity Heritage Library (2 publications) (from synonym Carex polyschoenoides K.T.Fu)
To Biodiversity Heritage Library (21 publications) (from synonym Carex tenuissima Boott)
To Biodiversity Heritage Library (3 publications) (from synonym Carex indistincta H.Lév. & Vaniot)
To Biodiversity Heritage Library (5 publications) (from synonym Carex amphora Franch. & Sav.)
To Biodiversity Heritage Library (7 publications) (from synonym Carex polyschoena H.Lév. & Vaniot)
To European Nucleotide Archive, ENA (Carex pisiformis var. pisiformis) (from synonym Carex pisiformis var. pisiformis Boott)
To European Nucleotide Archive, ENA (Carex pisiformis)
To European Nucleotide Archive, ENA (Carex polyschoena) (from synonym Carex polyschoena H.Lév. & Vaniot)
To European Nucleotide Archive, ENA (Carex polyschoenoides) (from synonym Carex polyschoenoides K.T.Fu)
To GenBank (2 nucleotides; 0 proteins) (from synonym Carex pisiformis var. pisiformis Boott)
To GenBank (2 nucleotides; 1 proteins) (from synonym Carex polyschoenoides K.T.Fu)
To GenBank (2 nucleotides; 1 proteins)
To GenBank (6 nucleotides; 4 proteins) (from synonym Carex polyschoena H.Lév. & Vaniot)
To International Plant Names Index (IPNI) (from synonym Carex indistincta H.Lév. & Vaniot)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex hezhouensis H.Wang & S.N.Wang)
To International Plant Names Index (IPNI) (from synonym Carex clivorum Ohwi)
To International Plant Names Index (IPNI) (from synonym Carex polyschoenoides K.T.Fu)
To International Plant Names Index (IPNI) (from synonym Carex ×dandoensis T.Koyama)
To International Plant Names Index (IPNI) (from synonym Carex amphora Franch. & Sav.)
To International Plant Names Index (IPNI) (from synonym Carex tenuissima Boott)
To International Plant Names Index (IPNI) (from synonym Carex pisiformis var. pisiformis Boott)
To International Plant Names Index (IPNI) (from synonym Carex bauhwaensis Z.P.Wang)
To International Plant Names Index (IPNI) (from synonym Carex pisiformis var. pallescens Kük.)
To International Plant Names Index (IPNI) (from synonym Carex polyschoenoides var. fractiflexa Y.C.Yang)
To Plants of the World Online (from synonym Carex pisiformis f. polyschoena (H.Lév. & Vaniot) Kük.)
To Plants of the World Online (from synonym Carex polyschoenoides var. fractiflexa Y.C.Yang)
To Plants of the World Online (from synonym Carex pisiformis var. pallescens Kük.)
To Plants of the World Online (from synonym Carex pisiformis var. pisiformis Boott)
To Plants of the World Online (from synonym Carex bauhwaensis Z.P.Wang)
To Plants of the World Online (from synonym Carex amphora Franch. & Sav.)
To Plants of the World Online (from synonym Carex tenuissima Boott)
To Plants of the World Online (from synonym Carex ×dandoensis T.Koyama)
To Plants of the World Online (from synonym Carex polyschoenoides K.T.Fu)
To Plants of the World Online (from synonym Carex clivorum Ohwi)
To Plants of the World Online (from synonym Carex hezhouensis H.Wang & S.N.Wang)
To Plants of the World Online (from synonym Carex indistincta H.Lév. & Vaniot)
To Plants of the World Online
To Plants of the World Online (from synonym Carex polyschoena H.Lév. & Vaniot)
To University of Tokyo Herbarium (Carex × dandoensis type TI00010069) (from synonym Carex ×dandoensis T.Koyama)
To Biodiversity Heritage Library (14 publications)
To Biodiversity Heritage Library (2 publications) (from synonym Carex polyschoenoides K.T.Fu)
To Biodiversity Heritage Library (21 publications) (from synonym Carex tenuissima Boott)
To Biodiversity Heritage Library (3 publications) (from synonym Carex indistincta H.Lév. & Vaniot)
To Biodiversity Heritage Library (5 publications) (from synonym Carex amphora Franch. & Sav.)
To Biodiversity Heritage Library (7 publications) (from synonym Carex polyschoena H.Lév. & Vaniot)
To European Nucleotide Archive, ENA (Carex pisiformis var. pisiformis) (from synonym Carex pisiformis var. pisiformis Boott)
To European Nucleotide Archive, ENA (Carex pisiformis)
To European Nucleotide Archive, ENA (Carex polyschoena) (from synonym Carex polyschoena H.Lév. & Vaniot)
To European Nucleotide Archive, ENA (Carex polyschoenoides) (from synonym Carex polyschoenoides K.T.Fu)
To GenBank (2 nucleotides; 0 proteins) (from synonym Carex pisiformis var. pisiformis Boott)
To GenBank (2 nucleotides; 1 proteins) (from synonym Carex polyschoenoides K.T.Fu)
To GenBank (2 nucleotides; 1 proteins)
To GenBank (6 nucleotides; 4 proteins) (from synonym Carex polyschoena H.Lév. & Vaniot)
To International Plant Names Index (IPNI) (from synonym Carex indistincta H.Lév. & Vaniot)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex hezhouensis H.Wang & S.N.Wang)
To International Plant Names Index (IPNI) (from synonym Carex clivorum Ohwi)
To International Plant Names Index (IPNI) (from synonym Carex polyschoenoides K.T.Fu)
To International Plant Names Index (IPNI) (from synonym Carex ×dandoensis T.Koyama)
To International Plant Names Index (IPNI) (from synonym Carex amphora Franch. & Sav.)
To International Plant Names Index (IPNI) (from synonym Carex tenuissima Boott)
To International Plant Names Index (IPNI) (from synonym Carex pisiformis var. pisiformis Boott)
To International Plant Names Index (IPNI) (from synonym Carex bauhwaensis Z.P.Wang)
To International Plant Names Index (IPNI) (from synonym Carex pisiformis var. pallescens Kük.)
To International Plant Names Index (IPNI) (from synonym Carex polyschoenoides var. fractiflexa Y.C.Yang)
To Plants of the World Online (from synonym Carex pisiformis f. polyschoena (H.Lév. & Vaniot) Kük.)
To Plants of the World Online (from synonym Carex polyschoenoides var. fractiflexa Y.C.Yang)
To Plants of the World Online (from synonym Carex pisiformis var. pallescens Kük.)
To Plants of the World Online (from synonym Carex pisiformis var. pisiformis Boott)
To Plants of the World Online (from synonym Carex bauhwaensis Z.P.Wang)
To Plants of the World Online (from synonym Carex amphora Franch. & Sav.)
To Plants of the World Online (from synonym Carex tenuissima Boott)
To Plants of the World Online (from synonym Carex ×dandoensis T.Koyama)
To Plants of the World Online (from synonym Carex polyschoenoides K.T.Fu)
To Plants of the World Online (from synonym Carex clivorum Ohwi)
To Plants of the World Online (from synonym Carex hezhouensis H.Wang & S.N.Wang)
To Plants of the World Online (from synonym Carex indistincta H.Lév. & Vaniot)
To Plants of the World Online
To Plants of the World Online (from synonym Carex polyschoena H.Lév. & Vaniot)
To University of Tokyo Herbarium (Carex × dandoensis type TI00010069) (from synonym Carex ×dandoensis T.Koyama)
From editor or global species database
Hosted externally, from synonym