Cyperaceae name details
Kobresia laxa Nees
1684755 (urn:lsid:marinespecies.org:taxname:1684755)
unaccepted
Species
Kobresia Willd. accepted as Carex L.
terrestrial
Not documented
Description Rhizomes shortly elongated. Basal sheaths few, pale to dark brown, dull, retaining dried leaf blades or not. Culms loosely...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from in R. Wight, Contrib. Bot. India 119 (1834), as 'Cobresia'. to Contr....
Description Rhizomes shortly elongated. Basal sheaths few, pale to dark brown, dull, retaining dried leaf blades or not. Culms loosely tufted, obscurely trigonous, (4-)13-35 cm tall, slender, ca. 1 mm in diam. Leaves sub-basal, shorter than culms; blade flat, 1.4-4 mm wide, midrib distinct abaxially. Inflorescence a loose or sometimes slightly compact panicle, reddish brown, linear or oblong, 3.5-8 × 1-1.5 cm; inflorescence branches all similar in length, curving outward, lower branches again branched; lowest involucral bract leaflike, sometimes surpassing inflorescence. Inflorescence branches usually androgynous in upper part of inflorescence, those in lower part usually female, sometimes whole inflorescence composed of primarily male or primarily female spikelets; spikelets unisexual; glumes reddish brown, with green midvein, narrowly ovate or oblong, 3.5-5 × 1-1.4 mm, midvein narrow, margin broadly hyaline, apex aristate, acute, or rounded. Prophylls pale green, utriculiform, linear or linear-lanceolate, sometimes slightly curved, (3.5-)4.5-6.6 × 0.5-0.8 mm, membranous, 2-keeled, keels slightly scabrid, margins fused to apex or free in upper half. Nutlets pale yellow or brown, narrowly oblong or elliptic-oblong, trigonous, 2.5-3 × 0.4-0.6 mm, slightly beaked. Rachilla in female spikelets longer than nutlet, exserted from or included in prophyll, green, flat, margins scabrid. Stigmas 3. Fl. and fr. May-Jul. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from in R. Wight, Contrib. Bot. India 119 (1834), as 'Cobresia'. to Contr....
Taxonomic remark Source in seed data: wcs Update namepublishedIn from in R. Wight, Contrib. Bot. India 119 (1834), as 'Cobresia'. to Contr. Bot. India : 119 (1834), 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. Kobresia laxa Nees. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1684755 on 2026-09-29
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
basis of record
Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
From editor or global species database
Description Rhizomes shortly elongated. Basal sheaths few, pale to dark brown, dull, retaining dried leaf blades or not. Culms loosely tufted, obscurely trigonous, (4-)13-35 cm tall, slender, ca. 1 mm in diam. Leaves sub-basal, shorter than culms; blade flat, 1.4-4 mm wide, midrib distinct abaxially. Inflorescence a loose or sometimes slightly compact panicle, reddish brown, linear or oblong, 3.5-8 × 1-1.5 cm; inflorescence branches all similar in length, curving outward, lower branches again branched; lowest involucral bract leaflike, sometimes surpassing inflorescence. Inflorescence branches usually androgynous in upper part of inflorescence, those in lower part usually female, sometimes whole inflorescence composed of primarily male or primarily female spikelets; spikelets unisexual; glumes reddish brown, with green midvein, narrowly ovate or oblong, 3.5-5 × 1-1.4 mm, midvein narrow, margin broadly hyaline, apex aristate, acute, or rounded. Prophylls pale green, utriculiform, linear or linear-lanceolate, sometimes slightly curved, (3.5-)4.5-6.6 × 0.5-0.8 mm, membranous, 2-keeled, keels slightly scabrid, margins fused to apex or free in upper half. Nutlets pale yellow or brown, narrowly oblong or elliptic-oblong, trigonous, 2.5-3 × 0.4-0.6 mm, slightly beaked. Rachilla in female spikelets longer than nutlet, exserted from or included in prophyll, green, flat, margins scabrid. Stigmas 3. Fl. and fr. May-Jul. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from in R. Wight, Contrib. Bot. India 119 (1834), as 'Cobresia'. to Contr. Bot. India : 119 (1834), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (17 publications)
To GenBank (32 nucleotides; 11 proteins)
To International Plant Names Index (IPNI)
To Plants of the World Online
To Royal Botanic Gardens, Kew (Kobresia laxa K000794675 type 1)
To GenBank (32 nucleotides; 11 proteins)
To International Plant Names Index (IPNI)
To Plants of the World Online
To Royal Botanic Gardens, Kew (Kobresia laxa K000794675 type 1)
From editor or global species database
Hosted externally
