Cyperaceae taxon details
Carex composita Boott
1676691 (urn:lsid:marinespecies.org:taxname:1676691)
accepted
Species
Carex composita f. simplicior Kük. · unaccepted
- Forma Carex composita f. simplicior Kük. accepted as Carex composita Boott
- Variety Carex composita var. eminens (Nees) Boeckeler accepted as Carex eminens Nees
terrestrial
Boott, F. (1858). Illustrations of the genus Carex. pt. 1. London: England., available online at https://www.biodiversitylibrary.org/page/58566400
page(s): 3 [details]
page(s): 3 [details]
Description Rhizome woody. Culms tufted, 40-60 × 0.15-0.2 cm, trigonous, smooth. Leaves basal and cauline, flat, 2-3 mm wide, glabrous...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ill. Gen. Carex 1: 3. 1858 to Ill. Gen. Carex 1: 3 (1858),...
Description Rhizome woody. Culms tufted, 40-60 × 0.15-0.2 cm, trigonous, smooth. Leaves basal and cauline, flat, 2-3 mm wide, glabrous abaxially, prominently scabrid adaxially; basal persistent leaf sheaths pale brown, fibriform. Involucral bracts leafy, longer than inflorescence, long sheathed. Panicle simple, 20-30 cm, 2-4-branched; inflorescence branches racemose, single, 5-8 cm, 3-8-spiked; peduncles of inflorescence branches tenuous, 5-8 cm, usually not exserted from sheaths; inflorescence axes loosely hairy on edges; bractlets glumelike. Spikes bisexual and androgynous, cylindric, 2-6 cm; male part of spike usually ca. 1/2 length of or rarely equaling female part; female part with many dense flowers; male glumes brown or brown laterally and pale green at middle, lanceolate, 3-3.5 mm, membranous, margins narrowly hyaline, apex apiculate; female glumes yellowish green at middle and reddish brown or purplish brown laterally, oblong-lanceolate, 2.5-3 mm, membranous, loosely pubescent, 3-veined, margins narrowly hyaline, apex acuminate, shortly awned. Utricles pale green, obovate or ovate-globose, flatly trigonous, slightly inflated, 3-3.5 mm, papery, with several fine veins, upper part with brown spots and loosely pubescent, base subsessile, apex shortly beaked, orifice minutely 2-toothed. Nutlet brown at maturity, loosely enclosed in utricle, ovate to triangular-ovate, trigonous, ca. 1.5 mm, base shortly stipitate, apex with contorted apiculus; style base slightly thickened; stigmas 3. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ill. Gen. Carex 1: 3. 1858 to Ill. Gen. Carex 1: 3 (1858),...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ill. Gen. Carex 1: 3. 1858 to Ill. Gen. Carex 1: 3 (1858), 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 composita Boott. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1676691 on 2025-09-11
Date
action
by
2024-12-10 11:47:54Z
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db_admin
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
original description
Boott, F. (1858). Illustrations of the genus Carex. pt. 1. London: England., available online at https://www.biodiversitylibrary.org/page/58566400
page(s): 3 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 3 [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 
[request]
[request]
Present Inaccurate Introduced: alien Containing type locality
Syntype NY 00011529, geounit Bangladesh [details]
From editor or global species database
Description Rhizome woody. Culms tufted, 40-60 × 0.15-0.2 cm, trigonous, smooth. Leaves basal and cauline, flat, 2-3 mm wide, glabrous abaxially, prominently scabrid adaxially; basal persistent leaf sheaths pale brown, fibriform. Involucral bracts leafy, longer than inflorescence, long sheathed. Panicle simple, 20-30 cm, 2-4-branched; inflorescence branches racemose, single, 5-8 cm, 3-8-spiked; peduncles of inflorescence branches tenuous, 5-8 cm, usually not exserted from sheaths; inflorescence axes loosely hairy on edges; bractlets glumelike. Spikes bisexual and androgynous, cylindric, 2-6 cm; male part of spike usually ca. 1/2 length of or rarely equaling female part; female part with many dense flowers; male glumes brown or brown laterally and pale green at middle, lanceolate, 3-3.5 mm, membranous, margins narrowly hyaline, apex apiculate; female glumes yellowish green at middle and reddish brown or purplish brown laterally, oblong-lanceolate, 2.5-3 mm, membranous, loosely pubescent, 3-veined, margins narrowly hyaline, apex acuminate, shortly awned. Utricles pale green, obovate or ovate-globose, flatly trigonous, slightly inflated, 3-3.5 mm, papery, with several fine veins, upper part with brown spots and loosely pubescent, base subsessile, apex shortly beaked, orifice minutely 2-toothed. Nutlet brown at maturity, loosely enclosed in utricle, ovate to triangular-ovate, trigonous, ca. 1.5 mm, base shortly stipitate, apex with contorted apiculus; style base slightly thickened; stigmas 3. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ill. Gen. Carex 1: 3. 1858 to Ill. Gen. Carex 1: 3 (1858), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (35 publications)
To European Nucleotide Archive, ENA (Carex composita)
To GenBank (5 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To New York Botanical Garden Steere Herbarium (Carex_composita_NY11529_type_1)
To Plants of the World Online (from synonym Carex composita f. simplicior Kük.)
To Plants of the World Online
To Royal Botanic Garden Edinburgh Herbarium (Carex composita E00393419 isosyntype 1)
To European Nucleotide Archive, ENA (Carex composita)
To GenBank (5 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To New York Botanical Garden Steere Herbarium (Carex_composita_NY11529_type_1)
To Plants of the World Online (from synonym Carex composita f. simplicior Kük.)
To Plants of the World Online
To Royal Botanic Garden Edinburgh Herbarium (Carex composita E00393419 isosyntype 1)
From editor or global species database
Hosted externally
Hosted externally
