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Cyperaceae taxon details

Rhynchospora malasica C.B.Clarke

1681141  (urn:lsid:marinespecies.org:taxname:1681141)

accepted
Species
terrestrial
Hooker, J. D. (1896). The flora of British India. 6., available online at https://www.biodiversitylibrary.org/page/356239#page/3/mode/1up
page(s): 670 [details] 
Description Perennials. Rhizomes short, creeping. Culms erect, simple, 60-100 cm tall, rigid, with several nodes, smooth, basally...  
Description Perennials. Rhizomes short, creeping. Culms erect, simple, 60-100 cm tall, rigid, with several nodes, smooth, basally obtusely 3-angled and clothed with dusky brown bladeless sheaths, apically acutely 3-angled. Leaves longer than culm; sheath elongated, tightly surrounding culm; ligule rust-colored brown, short, membranous; leaf blade broadly linear, 5-9 mm wide, flattish, apex long acuminate to acute. Involucral bracts spreading, 7-20 cm, much longer than inflorescence, sheathless. Inflorescences spicate, 3-20 cm, with 2-7 heads, basally interrupted, apically subcontiguous; heads sessile, globose, 1-1.5 cm in diam. Spikelets narrowly ovoid, 6-7 mm, weakly laterally compressed, 1-flowered, base contracted, apex acuminate. Glumes 5 or 6; basal 3 or 4 grayish brown, ovate, much smaller than others, membranous, 1-veined, apex acute; apical 2 glumes lanceolate-ovate. Perianth bristles 6, filiform, 3.5-4.5 mm, ca. 2 × as long as nutlet, flexuose, smooth. Stamens 3; anthers ca. 2 mm. Style slender; stigmas 2. Nutlet dark brown, obovoid to broadly obovoid, 2-2.3 mm, biconvex, indistinctly transversely wrinkled, shiny, base attenuate; persistent style base narrowly conic-subulate, 4-5 mm, glabrous. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. Brit. India [J. D. Hooker] 6(19): 670. 1893 [Sep 1893] to Fl....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. Brit. India [J. D. Hooker] 6(19): 670. 1893 [Sep 1893] to Fl. Brit. India 6: 670 (1893), 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. Rhynchospora malasica C.B.Clarke. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1681141 on 2025-09-13
Date
action
by
2023-09-06 07:35:01Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-09-05 08:01:18Z
checked

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Nomenclature

original description Hooker, J. D. (1896). The flora of British India. 6., available online at https://www.biodiversitylibrary.org/page/356239#page/3/mode/1up
page(s): 670 [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 
   

Syntype K 000291040, geounit Malacca [details]
From editor or global species database
Description Perennials. Rhizomes short, creeping. Culms erect, simple, 60-100 cm tall, rigid, with several nodes, smooth, basally obtusely 3-angled and clothed with dusky brown bladeless sheaths, apically acutely 3-angled. Leaves longer than culm; sheath elongated, tightly surrounding culm; ligule rust-colored brown, short, membranous; leaf blade broadly linear, 5-9 mm wide, flattish, apex long acuminate to acute. Involucral bracts spreading, 7-20 cm, much longer than inflorescence, sheathless. Inflorescences spicate, 3-20 cm, with 2-7 heads, basally interrupted, apically subcontiguous; heads sessile, globose, 1-1.5 cm in diam. Spikelets narrowly ovoid, 6-7 mm, weakly laterally compressed, 1-flowered, base contracted, apex acuminate. Glumes 5 or 6; basal 3 or 4 grayish brown, ovate, much smaller than others, membranous, 1-veined, apex acute; apical 2 glumes lanceolate-ovate. Perianth bristles 6, filiform, 3.5-4.5 mm, ca. 2 × as long as nutlet, flexuose, smooth. Stamens 3; anthers ca. 2 mm. Style slender; stigmas 2. Nutlet dark brown, obovoid to broadly obovoid, 2-2.3 mm, biconvex, indistinctly transversely wrinkled, shiny, base attenuate; persistent style base narrowly conic-subulate, 4-5 mm, glabrous. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. Brit. India [J. D. Hooker] 6(19): 670. 1893 [Sep 1893] to Fl. Brit. India 6: 670 (1893), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]