Cyperaceae taxon details
Carex pseudotristachya X.F.Jin & C.Z.Zheng
1678068 (urn:lsid:marinespecies.org:taxname:1678068)
accepted
Species
terrestrial
Jin, X. F. et al. (2004). New taxa of Carex Cyperaceae from Zhejiang China. <em>Acta Phytotaxonomica Sinica.</em> 42(6): 541-550., available online at https://archive.org/details/acta-phytotaxonomica-sinica-42-6-541-550/mode/1up
page(s): 543 [details]
page(s): 543 [details]
Holotype HZU, geounit Zhejiang
Holotype HZU, geounit Zhejiang [details]
Description Rhizome short. Culms tufted, 15-20 cm tall, slender, triquetrous, smooth. Basal sheaths dark brown, disintegrating into...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Acta Phytotax. Sin. 42(6): 543 (-544; f. 2). 2004 [18 Nov 2004] to Acta...
Description Rhizome short. Culms tufted, 15-20 cm tall, slender, triquetrous, smooth. Basal sheaths dark brown, disintegrating into persistent fibers. Leaves equaling to exceeding culm, blades 3-5 mm wide, flat, slightly verruculose on upper surface, scabrid along involute margins. Involucral bracts leaflike, shorter or longer than subtending spikes, sheath 5-10 mm. Spikes 2-4, upper ones separated; terminal spike male, linear, 10-25 × ca. 1 mm, subsessile, male glumes with connate margins from base to middle, filament of stamen flat, free (not connate); lateral spikes cylindric, 10-25 × ca. 3 mm, sparsely flowered; upper peduncles short and enclosed in involucral bract sheath, lowest one exserted, 0.5-1 cm, erect, slender. Female glumes pale brown, broadly ovate, ca. 1.5 mm, apex acute. Utricles yellowish green, longer than glume, erect, ovate-fusiform, trigonous, 4.5-5 mm, membranous, puberulent, many veined, base attenuate and stipitate, apex gradually attenuate into a beak, orifice minutely 2-toothed. Nutlet yellowish, tightly enveloped, ovate, ca. 3 mm, apex discoid-annulate; style base conically thickened; stigmas 3. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Acta Phytotax. Sin. 42(6): 543 (-544; f. 2). 2004 [18 Nov 2004] to Acta...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Acta Phytotax. Sin. 42(6): 543 (-544; f. 2). 2004 [18 Nov 2004] to Acta Phytotax. Sin. 42: 543 (2004), 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 pseudotristachya X.F.Jin & C.Z.Zheng. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1678068 on 2025-09-13
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2024-12-10 11:47:54Z
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Nomenclature
original description
Jin, X. F. et al. (2004). New taxa of Carex Cyperaceae from Zhejiang China. <em>Acta Phytotaxonomica Sinica.</em> 42(6): 541-550., available online at https://archive.org/details/acta-phytotaxonomica-sinica-42-6-541-550/mode/1up
page(s): 543 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 543 [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
Holotype HZU, geounit Zhejiang [details]
From editor or global species database
Description Rhizome short. Culms tufted, 15-20 cm tall, slender, triquetrous, smooth. Basal sheaths dark brown, disintegrating into persistent fibers. Leaves equaling to exceeding culm, blades 3-5 mm wide, flat, slightly verruculose on upper surface, scabrid along involute margins. Involucral bracts leaflike, shorter or longer than subtending spikes, sheath 5-10 mm. Spikes 2-4, upper ones separated; terminal spike male, linear, 10-25 × ca. 1 mm, subsessile, male glumes with connate margins from base to middle, filament of stamen flat, free (not connate); lateral spikes cylindric, 10-25 × ca. 3 mm, sparsely flowered; upper peduncles short and enclosed in involucral bract sheath, lowest one exserted, 0.5-1 cm, erect, slender. Female glumes pale brown, broadly ovate, ca. 1.5 mm, apex acute. Utricles yellowish green, longer than glume, erect, ovate-fusiform, trigonous, 4.5-5 mm, membranous, puberulent, many veined, base attenuate and stipitate, apex gradually attenuate into a beak, orifice minutely 2-toothed. Nutlet yellowish, tightly enveloped, ovate, ca. 3 mm, apex discoid-annulate; style base conically thickened; stigmas 3. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Acta Phytotax. Sin. 42(6): 543 (-544; f. 2). 2004 [18 Nov 2004] to Acta Phytotax. Sin. 42: 543 (2004), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
