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Cyperaceae taxon details

Carex canina Dunn

1678232  (urn:lsid:marinespecies.org:taxname:1678232)

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terrestrial
Dunn, S. T. (1910). Additions to the flora of Hongkong. <em>Journal of Botany, British and Foreign.</em> 48: 323-325., available online at https://www.biodiversitylibrary.org/page/35140364#page/388/mode/1up
page(s): 325 [details] 
Description Herbs perennial. Rhizome short, ligneous, thick. Culms lateral, 15-40 cm tall, acutely trigonous, covered with brown...  
Description Herbs perennial. Rhizome short, ligneous, thick. Culms lateral, 15-40 cm tall, acutely trigonous, covered with brown fibrous sheaths at base. Leaves longer than culms; leaf-blade yellowish green or green, flat, leathery, 1. 5-6 mm wide, scabrous on margins» acuminate at apex; sheaths dark brown», fibriform at apex. Involucral bracts shortly leaf-like, shorter than inflorescence, sheathed; sheaths 4-7 mm long, obliquely truncate at orifice, Inflorescence paniculate, with 2 or 3 spikes; terminal spike staminate» linear-cylindrical, 1-1. 5 cm long, 1. 5-2 mm wide, with a short peduncle at base; lateral spikes pistillate, shortly cylindrical, 1-1. 3 cm long, 5-7 mm wide, 6-8- flowered; peduncles slightly exserted from sheaths, or enclosed. Staminate scales ovate, pale green, ca. 3.5 mm long, acute or obtuse at apex, green 3-veined costa on dorsal surface. Pistillate scales ovate or broadly ovate, pale green, 3-5 mm long (including awn), acuminate at apex, green 3-veined costa excurrent into a short awn. Perigynia ellipsoid to broadly ovoid (excluding beak), 7-8. 5 mm long, longer than pistillate scales (including beak), obliquely patent, obtusely trigonous, papery», brownish green or yellowish green, distinctly veined, glabrous, gradually contracted into a long beak; orifice 2-lobed with teeth. Stigmas 3; style thicken at base. Achenes tightly enveloped, rhombic-ovoid, trigonous, 4.5-5.5 mm long (including beak), castaneous, with 3 angles constricted at middle, sides concave above and below, shortly curved or erect, stipitate at base, abruptly contracted into a 0. 5-1. 5 mm long beak at apex, beak erect, annulate at orifice.
 [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from J. Bot. 48: 325. 1910 to J. Bot. 48: 325 (1910), information provided...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from J. Bot. 48: 325. 1910 to J. Bot. 48: 325 (1910), information provided by Alan E. on email Jun. 07 2021 More details could be found in The  [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex canina Dunn. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1678232 on 2025-09-12
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

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Nomenclature

original description Dunn, S. T. (1910). Additions to the flora of Hongkong. <em>Journal of Botany, British and Foreign.</em> 48: 323-325., available online at https://www.biodiversitylibrary.org/page/35140364#page/388/mode/1up
page(s): 325 [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  PDF available [request]

additional source Jin, X. F. & Chao-Zhong, Z. (2013). Taxonomy of Carex sect. Rhomboidales (Cyperaceae). [details] Available for editors  PDF available [request]

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Syntype K 000710225, geounit Hong Kong [details]
From editor or global species database
Description Herbs perennial. Rhizome short, ligneous, thick. Culms lateral, 15-40 cm tall, acutely trigonous, covered with brown fibrous sheaths at base. Leaves longer than culms; leaf-blade yellowish green or green, flat, leathery, 1. 5-6 mm wide, scabrous on margins» acuminate at apex; sheaths dark brown», fibriform at apex. Involucral bracts shortly leaf-like, shorter than inflorescence, sheathed; sheaths 4-7 mm long, obliquely truncate at orifice, Inflorescence paniculate, with 2 or 3 spikes; terminal spike staminate» linear-cylindrical, 1-1. 5 cm long, 1. 5-2 mm wide, with a short peduncle at base; lateral spikes pistillate, shortly cylindrical, 1-1. 3 cm long, 5-7 mm wide, 6-8- flowered; peduncles slightly exserted from sheaths, or enclosed. Staminate scales ovate, pale green, ca. 3.5 mm long, acute or obtuse at apex, green 3-veined costa on dorsal surface. Pistillate scales ovate or broadly ovate, pale green, 3-5 mm long (including awn), acuminate at apex, green 3-veined costa excurrent into a short awn. Perigynia ellipsoid to broadly ovoid (excluding beak), 7-8. 5 mm long, longer than pistillate scales (including beak), obliquely patent, obtusely trigonous, papery», brownish green or yellowish green, distinctly veined, glabrous, gradually contracted into a long beak; orifice 2-lobed with teeth. Stigmas 3; style thicken at base. Achenes tightly enveloped, rhombic-ovoid, trigonous, 4.5-5.5 mm long (including beak), castaneous, with 3 angles constricted at middle, sides concave above and below, shortly curved or erect, stipitate at base, abruptly contracted into a 0. 5-1. 5 mm long beak at apex, beak erect, annulate at orifice.
 [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from J. Bot. 48: 325. 1910 to J. Bot. 48: 325 (1910), information provided by Alan E. on email Jun. 07 2021 More details could be found in The  [details]