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Cyperaceae taxon details

Carex ypsilandrifolia F.T.Wang & Tang

1677415  (urn:lsid:marinespecies.org:taxname:1677415)

accepted
Species
terrestrial
(1949). Contributions from the Institute of Botany, National Academy of Peiping. 6.
page(s): 58 [details] 
Description Rhizome woody. Culms tufted, lateral, flaccid, 15-20 × ca. 0.1 cm, trigonous, loosely hairy and glabrescent later, base...  
Description Rhizome woody. Culms tufted, lateral, flaccid, 15-20 × ca. 0.1 cm, trigonous, loosely hairy and glabrescent later, base with pale brown sheaths. Leaves basal and cauline; basal leaves tufted, linear or linear-elliptic, 15-25 × 1.5-3 cm, glabrous, apex acuminate; petiole 1-10 cm, base covered with brown sheaths, upper part with narrow wings formed by leaf blade base; cauline leaves often absent, if present then brown, spathelike, membranous, glabrous or loosely pubescent. Involucral bracts spathelike. Panicle simple, triangular-ovate, 1.5-3 × 2-3 cm; peduncles of inflorescence branches tenuous, 1-3 cm, loosely pubescent; bractlets pale yellow with dense brown spots and short lines, glumelike, lanceolate, 3-7 mm, membranous. Spikes 1-10, bisexual, androgynous, arising from flowerless utriculiform cladoprophylls, oblong-cylindric, 7-10 mm; male part of spike nearly same length as female part, oblong-cylindric; female part 3-8-flowered; male glumes pale brownish white with dense brown spots and short lines, lanceolate, 3-4 mm, with 1 midrib, apex acuminate; female glumes pale brownish white with dense brown spots and short lines, lanceolate, 2-3 mm, membranous, glabrous, 1-veined, apex obtuse. Utricles pale brownish white with dense brown spots and short lines, rhomboid-ovate or elliptic, trigonous, patent, 3.5-4 mm, membranous, with 2 lateral veins abaxially, subsessile, apex contracted into long beak, beak slightly shorter than 1/2 length of utricle, orifice obliquely truncate. Nutlets brown at maturity, subovate, trigonous, 1.5-2 mm; style base thickened; stigmas 3. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Contr. Inst. Bot. Natl. Acad. Peiping 6: 58, reimpr. 1949 to Contr....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Contr. Inst. Bot. Natl. Acad. Peiping 6: 58, reimpr. 1949 to Contr. Inst. Bot. Natl. Acad. Peiping 6: 58 (1949), 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 ypsilandrifolia F.T.Wang & Tang. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1677415 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 (1949). Contributions from the Institute of Botany, National Academy of Peiping. 6.
page(s): 58 [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 woody. Culms tufted, lateral, flaccid, 15-20 × ca. 0.1 cm, trigonous, loosely hairy and glabrescent later, base with pale brown sheaths. Leaves basal and cauline; basal leaves tufted, linear or linear-elliptic, 15-25 × 1.5-3 cm, glabrous, apex acuminate; petiole 1-10 cm, base covered with brown sheaths, upper part with narrow wings formed by leaf blade base; cauline leaves often absent, if present then brown, spathelike, membranous, glabrous or loosely pubescent. Involucral bracts spathelike. Panicle simple, triangular-ovate, 1.5-3 × 2-3 cm; peduncles of inflorescence branches tenuous, 1-3 cm, loosely pubescent; bractlets pale yellow with dense brown spots and short lines, glumelike, lanceolate, 3-7 mm, membranous. Spikes 1-10, bisexual, androgynous, arising from flowerless utriculiform cladoprophylls, oblong-cylindric, 7-10 mm; male part of spike nearly same length as female part, oblong-cylindric; female part 3-8-flowered; male glumes pale brownish white with dense brown spots and short lines, lanceolate, 3-4 mm, with 1 midrib, apex acuminate; female glumes pale brownish white with dense brown spots and short lines, lanceolate, 2-3 mm, membranous, glabrous, 1-veined, apex obtuse. Utricles pale brownish white with dense brown spots and short lines, rhomboid-ovate or elliptic, trigonous, patent, 3.5-4 mm, membranous, with 2 lateral veins abaxially, subsessile, apex contracted into long beak, beak slightly shorter than 1/2 length of utricle, orifice obliquely truncate. Nutlets brown at maturity, subovate, trigonous, 1.5-2 mm; style base thickened; stigmas 3. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Contr. Inst. Bot. Natl. Acad. Peiping 6: 58, reimpr. 1949 to Contr. Inst. Bot. Natl. Acad. Peiping 6: 58 (1949), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]