Cyperaceae taxon details
Carex liouana F.T.Wang & Tang
1677528 (urn:lsid:marinespecies.org:taxname:1677528)
accepted
Species
terrestrial
(1949). Contributions from the Institute of Botany, National Academy of Peiping 6(2):
page(s): 62 [details]
page(s): 62 [details]
Description Rhizome woody. Culms tufted, lateral, 30-60 × 0.2-0.3 cm, trigonous, loosely pubescent when young, base with brown...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Contr. Inst. Bot. Natl. Acad. Peiping 6: 62. 1949 to Contr. Inst....
Description Rhizome woody. Culms tufted, lateral, 30-60 × 0.2-0.3 cm, trigonous, loosely pubescent when young, base with brown sheaths. Leaves basal and cauline; basal leaves tufted, longer or shorter than culms, linear or linear-oblanceolate, sometimes narrowly elliptic, 20-40 × 1.4-4 cm, glabrous on both surfaces or scabrid abaxially, margins entire or ciliate, apex acuminate; petiole 4-20 cm, glabrous; cauline leaves yellowish brown with dense brown spots, spathelike. Involucral bracts spathelike. Panicle compound, 3-5-branched; inflorescence branches subcorymbose, single or binate, triangular-ovate, 2-3.5 × 2-3 cm; peduncles of inflorescence branches tenuous, 4-6 cm, densely hairy or glabrous; inflorescence axes trigonous; bractlets pale yellow with dense brown spots, glumelike, lanceolate, 3-4 mm, densely hairy or glabrous. Spikes more than 10, bisexual, androgynous, 5-8 mm; male part of spike shorter than or equaling female part, circular or oblong; female part 3-10-flowered; male glumes pale yellowish brown or brown, lanceolate, 2-2.5 mm, membranous; female glumes pale yellowish brown or brown with dark brown spots and short lines, ovate or lanceolate, 2-2.5 mm, 1-veined, apex obtuse. Utricles pale brown with dense dark brown spots and short lines, ovate, rarely elliptic, trigonous, 2.5-3 mm, papery, glabrous, with 2 lateral veins abaxially, subsessile, apex contracted into beak of medium length, beak ca. 1/4 length of utricle, orifice obliquely truncate. Nutlets brown at maturity, ovate, 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: 62. 1949 to Contr. Inst....
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Contr. Inst. Bot. Natl. Acad. Peiping 6: 62. 1949 to Contr. Inst. Bot. Natl. Acad. Peiping 6: 62 (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 liouana F.T.Wang & Tang. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677528 on 2025-09-14
Date
action
by
2024-12-10 11:47:54Z
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db_admin
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Nomenclature
original description
(1949). Contributions from the Institute of Botany, National Academy of Peiping 6(2):
page(s): 62 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 62 [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
From editor or global species database
Description Rhizome woody. Culms tufted, lateral, 30-60 × 0.2-0.3 cm, trigonous, loosely pubescent when young, base with brown sheaths. Leaves basal and cauline; basal leaves tufted, longer or shorter than culms, linear or linear-oblanceolate, sometimes narrowly elliptic, 20-40 × 1.4-4 cm, glabrous on both surfaces or scabrid abaxially, margins entire or ciliate, apex acuminate; petiole 4-20 cm, glabrous; cauline leaves yellowish brown with dense brown spots, spathelike. Involucral bracts spathelike. Panicle compound, 3-5-branched; inflorescence branches subcorymbose, single or binate, triangular-ovate, 2-3.5 × 2-3 cm; peduncles of inflorescence branches tenuous, 4-6 cm, densely hairy or glabrous; inflorescence axes trigonous; bractlets pale yellow with dense brown spots, glumelike, lanceolate, 3-4 mm, densely hairy or glabrous. Spikes more than 10, bisexual, androgynous, 5-8 mm; male part of spike shorter than or equaling female part, circular or oblong; female part 3-10-flowered; male glumes pale yellowish brown or brown, lanceolate, 2-2.5 mm, membranous; female glumes pale yellowish brown or brown with dark brown spots and short lines, ovate or lanceolate, 2-2.5 mm, 1-veined, apex obtuse. Utricles pale brown with dense dark brown spots and short lines, ovate, rarely elliptic, trigonous, 2.5-3 mm, papery, glabrous, with 2 lateral veins abaxially, subsessile, apex contracted into beak of medium length, beak ca. 1/4 length of utricle, orifice obliquely truncate. Nutlets brown at maturity, ovate, 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: 62. 1949 to Contr. Inst. Bot. Natl. Acad. Peiping 6: 62 (1949), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
