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Cyperaceae taxon details

Carex humida Y.L.Chang & Y.L.Yang

1676442  (urn:lsid:marinespecies.org:taxname:1676442)

accepted
Species
terrestrial
(1976). Flora Plantarum Herbacearum Chinae Boreali-Orientalis. 11.
page(s): 204 [details] 
Description Rhizome long stoloniferous. Culms densely tufted, 50-70 cm tall, obtusely trigonous, smooth on lower part and slightly...  
Description Rhizome long stoloniferous. Culms densely tufted, 50-70 cm tall, obtusely trigonous, smooth on lower part and slightly scabrous on upper part, clothed with red-brown and bladeless sheaths at base, sheaths later usually splitting into reticulate fibers. Leaves shorter than culm, blades 4-6 mm wide, flat, slightly revolute on margins, with transverse septate nodes between veins, glabrous or laxly pubescent, rather long sheathed, sometimes upper sheaths laxly pubescent. Involucral bracts leafy, lowermost one longer than or equaling inflorescence, upper involucral bracts shorter than inflorescence, shortly sheathed, uppermost nearly not sheathed. Spikes 3-7, upper spikes approximate, lower ones rather remote; terminal 2-4 spikes male, narrowly lanceolate, 2-3 cm, subsessile; remaining spikes female, oblong-cylindric or cylindric, 3-5 cm, densely many flowered, rather lax at base, lower spikes shortly pedunculate, upper ones subsessile. Female glumes pale ferruginous, oblong-ovate or ovate-lanceolate, 6-7.5 mm (including awn), membranous, 3-veined, apex acuminate, long aristate. Utricles greenish or yellow-green, obliquely patent, slightly longer than glume, ovate, plano-convex, 6-8 mm, thinly leathery, glabrous, several veined, base subrounded, shortly stipitate, apex gradually narrowed into a medium-sized to long beak, orifice rather long 2-toothed. Nutlets loosely enveloped in utricle, obovate, convex on both sides, ca. 2.5 mm, base stipitate; style base not thickened; stigmas 2. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. Pl. Herb. Chin. Bor.-Or. 11: 204. 1976 to Fl. Pl. Herb. Chin....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. Pl. Herb. Chin. Bor.-Or. 11: 204. 1976 to Fl. Pl. Herb. Chin. Bor.-Or. 11: 204 (1976), 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 humida Y.L.Chang & Y.L.Yang. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676442 on 2025-09-14
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 (1976). Flora Plantarum Herbacearum Chinae Boreali-Orientalis. 11.
page(s): 204 [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 
   

From editor or global species database
Description Rhizome long stoloniferous. Culms densely tufted, 50-70 cm tall, obtusely trigonous, smooth on lower part and slightly scabrous on upper part, clothed with red-brown and bladeless sheaths at base, sheaths later usually splitting into reticulate fibers. Leaves shorter than culm, blades 4-6 mm wide, flat, slightly revolute on margins, with transverse septate nodes between veins, glabrous or laxly pubescent, rather long sheathed, sometimes upper sheaths laxly pubescent. Involucral bracts leafy, lowermost one longer than or equaling inflorescence, upper involucral bracts shorter than inflorescence, shortly sheathed, uppermost nearly not sheathed. Spikes 3-7, upper spikes approximate, lower ones rather remote; terminal 2-4 spikes male, narrowly lanceolate, 2-3 cm, subsessile; remaining spikes female, oblong-cylindric or cylindric, 3-5 cm, densely many flowered, rather lax at base, lower spikes shortly pedunculate, upper ones subsessile. Female glumes pale ferruginous, oblong-ovate or ovate-lanceolate, 6-7.5 mm (including awn), membranous, 3-veined, apex acuminate, long aristate. Utricles greenish or yellow-green, obliquely patent, slightly longer than glume, ovate, plano-convex, 6-8 mm, thinly leathery, glabrous, several veined, base subrounded, shortly stipitate, apex gradually narrowed into a medium-sized to long beak, orifice rather long 2-toothed. Nutlets loosely enveloped in utricle, obovate, convex on both sides, ca. 2.5 mm, base stipitate; style base not thickened; stigmas 2. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. Pl. Herb. Chin. Bor.-Or. 11: 204. 1976 to Fl. Pl. Herb. Chin. Bor.-Or. 11: 204 (1976), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]