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Cyperaceae taxon details

Carex oligostachya Nees

1676643  (urn:lsid:marinespecies.org:taxname:1676643)

accepted
Species
terrestrial
Nees von Esenbeck, C. G. D. (1854). Cyperaceae Cumingianae. Hooker's journal of botany and Kew Garden Miscellany, 6: 27-30.
page(s): 29 [details] 
Description Rhizome stoloniferous, woody. Culms lateral, 20-80 × 0.1-0.2 cm, trigonous, glabrous, base with brown sheaths. Leaves...  
Description Rhizome stoloniferous, woody. Culms lateral, 20-80 × 0.1-0.2 cm, trigonous, glabrous, base with brown sheaths. Leaves radical and cauline; radical leaves shorter than culms, several ones forming a high shoot, leaf blades linear, flat, 2-5 mm wide, base covered with brown sheaths; cauline leaves brown, spathelike. Involucral bracts spathelike, with linear blades, shorter than inflorescence branches. Panicle compound, with 6-12 distant branches; inflorescence branches subcorymbose, single or binate, 3-5-spiked; peduncles of inflorescence branches tenuous, erect, slightly scabrid; inflorescence axes loosely hairy on edges; bractlets glumelike, ca. 3 mm. Spikes bisexual, androgynous, patent, 4-10 mm; male part of spike nearly as long as or longer than female part; male glumes brown, lanceolate, 3-3.5 mm, glabrous; female glumes pale brown with dense purplish red spots and short lines, ovate to lanceolate, 2-3 mm, upper part loosely pubescent, margins hyaline, apex obtuse, mucronate. Utricles brownish green to purplish brown, patent, oblong, slightly inflated, trigonous, 2.5-4 mm, with several raised veins, hairy, apex contracted into excurved beak of medium length, beak ca. 1/3 length of utricle, orifice prominently 2-toothed. Nutlets elliptic, trigonous, 2-2.3 mm; style base not thickened; stigmas 3. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Hooker's J. Bot. Kew Gard. Misc. 6: 29. 1854 to Hooker's J. Bot. Kew...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Hooker's J. Bot. Kew Gard. Misc. 6: 29. 1854 to Hooker's J. Bot. Kew Gard. Misc. 6: 29 (1854), 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 oligostachya Nees. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1676643 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 Nees von Esenbeck, C. G. D. (1854). Cyperaceae Cumingianae. Hooker's journal of botany and Kew Garden Miscellany, 6: 27-30.
page(s): 29 [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 
   

Isotype MW 0591580, geounit Philippines [details]
From editor or global species database
Description Rhizome stoloniferous, woody. Culms lateral, 20-80 × 0.1-0.2 cm, trigonous, glabrous, base with brown sheaths. Leaves radical and cauline; radical leaves shorter than culms, several ones forming a high shoot, leaf blades linear, flat, 2-5 mm wide, base covered with brown sheaths; cauline leaves brown, spathelike. Involucral bracts spathelike, with linear blades, shorter than inflorescence branches. Panicle compound, with 6-12 distant branches; inflorescence branches subcorymbose, single or binate, 3-5-spiked; peduncles of inflorescence branches tenuous, erect, slightly scabrid; inflorescence axes loosely hairy on edges; bractlets glumelike, ca. 3 mm. Spikes bisexual, androgynous, patent, 4-10 mm; male part of spike nearly as long as or longer than female part; male glumes brown, lanceolate, 3-3.5 mm, glabrous; female glumes pale brown with dense purplish red spots and short lines, ovate to lanceolate, 2-3 mm, upper part loosely pubescent, margins hyaline, apex obtuse, mucronate. Utricles brownish green to purplish brown, patent, oblong, slightly inflated, trigonous, 2.5-4 mm, with several raised veins, hairy, apex contracted into excurved beak of medium length, beak ca. 1/3 length of utricle, orifice prominently 2-toothed. Nutlets elliptic, trigonous, 2-2.3 mm; style base not thickened; stigmas 3. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Hooker's J. Bot. Kew Gard. Misc. 6: 29. 1854 to Hooker's J. Bot. Kew Gard. Misc. 6: 29 (1854), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]