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Cyperaceae taxon details

Carex pisiformis Boott

1677977  (urn:lsid:marinespecies.org:taxname:1677977)

accepted
Species
Carex ×dandoensis T.Koyama · unaccepted > junior subjective synonym
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 polyschoena H.Lév. & Vaniot · unaccepted > junior subjective synonym
Carex polyschoenoides K.T.Fu · unaccepted > junior subjective synonym

Ordering

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  1. Forma Carex pisiformis f. iwakiana (Ohwi) T.Koyama accepted as Carex sachalinensis var. iwakiana Ohwi
  2. Forma Carex pisiformis f. musashiensis (Hiyama) T.Koyama accepted as Carex alterniflora var. alterniflora Franch.
  3. Forma Carex pisiformis f. polyschoena (H.Lév. & Vaniot) Kük. accepted as Carex polyschoena H.Lév. & Vaniot accepted as Carex pisiformis Boott
  4. Variety Carex pisiformis var. alterniflora (Franch.) T.Koyama accepted as Carex alterniflora Franch.
  5. Variety Carex pisiformis var. aureobrunnea (Ohwi) T.Koyama accepted as Carex alterniflora var. aureobrunnea Ohwi
  6. Variety Carex pisiformis var. cuneata (Ohwi) T.Koyama accepted as Carex stenostachys var. cuneata (Ohwi) Ohwi & T.Koyama
  7. Variety Carex pisiformis var. duvaliana (Franch. & Sav.) T.Koyama accepted as Carex duvaliana Franch. & Sav.
  8. Variety Carex pisiformis var. ebracteata (Trautv.) Kük. accepted as Carex trautvetteriana Kom.
  9. Variety Carex pisiformis var. elongatula (Ohwi) T.Koyama accepted as Carex alterniflora var. elongatula Ohwi
  10. Variety Carex pisiformis var. fernaldiana (H.Lév. & Vaniot) T.Koyama accepted as Carex fernaldiana H.Lév. & Vaniot
  11. Variety Carex pisiformis var. fulva (Ohwi) T.Koyama accepted as Carex alterniflora var. fulva Ohwi
  12. Variety Carex pisiformis var. koreana (Nakai) T.Koyama accepted as Carex fernaldiana H.Lév. & Vaniot
  13. Variety Carex pisiformis var. longiuscula (Ohwi) T.Koyama accepted as Carex sachalinensis var. longiuscula Ohwi
  14. Variety Carex pisiformis var. major (Kük.) T.Koyama accepted as Carex capilliformis Franch.
  15. Variety Carex pisiformis var. mayebarana (Ohwi) T.Koyama accepted as Carex mayebarana Ohwi
  16. Variety Carex pisiformis var. pallescens Kük. accepted as Carex pisiformis Boott
  17. Variety Carex pisiformis var. pineticola (Ohwi) T.Koyama accepted as Carex sachalinensis var. iwakiana Ohwi
  18. Variety Carex pisiformis var. pisiformis Boott accepted as Carex pisiformis Boott
  19. Variety Carex pisiformis var. sachalinensis (F.Schmidt) Kük. ex Matsum. accepted as Carex sachalinensis F.Schmidt
  20. Variety Carex pisiformis var. sikokiana (Franch. & Sav.) T.Koyama accepted as Carex sikokiana Franch. & Sav.
  21. 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] 
Description Rhizomes shortened or obliquely ascending, woody, sometimes with short creeping rhizomes; culms loosely tufted or densely...  
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
Date
action
by
2023-09-06 07:28:28Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-03-11 11:19:03Z
changed
2025-11-18 11:27:56Z
changed

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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  PDF available [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  PDF available [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] 

Taxonomy

taxonomy source Jin, X. F., Lu, Y. F. (2024). Taxonomy of Carex sect. Mitratae s.l. (Cyperaceae). [details] Available for editors  PDF available [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  PDF available [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]
    Definitions

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LanguageName 
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]