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Cyperaceae taxon details

Carex daxinensis Y.Y.Zhou & X.F.Jin

1676790  (urn:lsid:marinespecies.org:taxname:1676790)

accepted
Species
terrestrial
Zhou, Y.-Y.; Jin, X.-F. (2014). Notes on Carex (Cyperaceae) from China: Three new species. Phytotaxa, 164(2): 133-140., available online at https://doi.org/10.11646/phytotaxa.164.2.7
page(s): 135 [details] 
Holotype  HTC, geounit Guangxi  
Holotype HTC, geounit Guangxi [details]
Description Perennial herbs. Rhizomes short, indurate. Culms loosely caespitose, (3-)10–50 cm tall, trigonous, 0.5–1 mm thick,...  
Description Perennial herbs. Rhizomes short, indurate. Culms loosely caespitose, (3-)10–50 cm tall, trigonous, 0.5–1 mm thick, smooth. Leaves longer to slightly shorter than culms; blades 2–3.5 mm wide, flat, stiff, with dark brown sheaths at base. Involucral bracts linear, nearly equaling or slightly shorter than inflorescence, sheathless. Spikes 1–3, androgynous, cylindrical, 1–2 cm long, 3–4 mm wide, densely flowered, staminate parts shorter than pistillate ones; lateral spikes exserted from middle part of culms, with erect short peduncles. Staminate scales ovate, ca. 2 mm long, acute at apex, subleathery, green 1-veined. Pistillate scales ovate, ca. 3 mm long, acute at apex, subleathery, membranous at margins, pale green laterally, green 1-veined costa. Perigynia longer than pistillate scales, green, ovoid, trigonous, 4–4.5 mm long, subleathery, distinctly veined, sparsely pubescent at margins, cuneate at base, gradually contracted into a short beak at apex; orifice shortly 2-lobed with minute teeth. Achenes dark brown at maturity, obovoid, compressed trigonous, 2.5–3 mm long, abruptly contracted into a short stipe at base; style slightly thickened at base, trigonous, conic, sparsely pubescent; stigmas 3. [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex daxinensis Y.Y.Zhou & X.F.Jin. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1676790 on 2025-09-13
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 Zhou, Y.-Y.; Jin, X.-F. (2014). Notes on Carex (Cyperaceae) from China: Three new species. Phytotaxa, 164(2): 133-140., available online at https://doi.org/10.11646/phytotaxa.164.2.7
page(s): 135 [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]

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Holotype HTC, geounit Guangxi [details]
From editor or global species database
Description Perennial herbs. Rhizomes short, indurate. Culms loosely caespitose, (3-)10–50 cm tall, trigonous, 0.5–1 mm thick, smooth. Leaves longer to slightly shorter than culms; blades 2–3.5 mm wide, flat, stiff, with dark brown sheaths at base. Involucral bracts linear, nearly equaling or slightly shorter than inflorescence, sheathless. Spikes 1–3, androgynous, cylindrical, 1–2 cm long, 3–4 mm wide, densely flowered, staminate parts shorter than pistillate ones; lateral spikes exserted from middle part of culms, with erect short peduncles. Staminate scales ovate, ca. 2 mm long, acute at apex, subleathery, green 1-veined. Pistillate scales ovate, ca. 3 mm long, acute at apex, subleathery, membranous at margins, pale green laterally, green 1-veined costa. Perigynia longer than pistillate scales, green, ovoid, trigonous, 4–4.5 mm long, subleathery, distinctly veined, sparsely pubescent at margins, cuneate at base, gradually contracted into a short beak at apex; orifice shortly 2-lobed with minute teeth. Achenes dark brown at maturity, obovoid, compressed trigonous, 2.5–3 mm long, abruptly contracted into a short stipe at base; style slightly thickened at base, trigonous, conic, sparsely pubescent; stigmas 3. [details]