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Cyperaceae taxon details

Carex tribuloides Wahlenb.

1676228  (urn:lsid:marinespecies.org:taxname:1676228)

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Wahlenberg, G. (1803). Inledning til Caricographien. <em>Kongl. Vetenskaps Academiens Nya Handlingar.</em> 24: 138-170., available online at https://www.biodiversitylibrary.org/page/46986891
page(s): 145 [details] 
Description Plants densely cespitose. Culms 50–110 cm; vegetative culms with numerous leaves spaced evenly along distal 1/2. Leaves:...  
Description Plants densely cespitose. Culms 50–110 cm; vegetative culms with numerous leaves spaced evenly along distal 1/2. Leaves: sheaths adaxially green-veined nearly to collar, with ± triangular white-hyaline area to 3–8 mm proximal to collar, somewhat loose, expanded near summits, ± wing-angled, adaxially firm, summits U-shaped, somewhat thickened, slightly prolonged beyond collar; distal ligules 4–8(–12) mm; blades 4–10 per fertile culm, 15–40 cm × (2–)3–7 mm. Inflorescences erect, dense distally, brown, 2–5(–8) cm × 10–20 mm; proximal internode 2–20 mm; 2d internode 2–13 mm; proximal bracts bristlelike, 1(–8) cm. Spikes 6–15, overlapping or distinct, ovoid-oblong to globose, 6–12(–16) × 4–8 mm, base rounded to tapered, apex rounded. Pistillate scales white-hyaline or pale silvery brown with green midstripe, lanceolate, (1.9–)2.5–3 mm, 1/2 length of and narrower than perigynia, apex acute to acuminate. Perigynia more than (30–)40 per spike, appressed-ascending to ascending, pale green to pale brown, 3–6-veined abaxially, conspicuously or, occasionally, faintly, 2–4-veined adaxially, often somewhat asymmetric, ovate-lanceolate to ovate-elliptic, plano-convex, 3–5.4 × 1.1–1.7 mm, 0.3–0.5 mm thick, margin flat, including wing 0.1–0.5 mm wide; beak tip flat, ciliate-serrulate, abaxial suture with golden to dark brown hyaline margin, distance from beak tip to achene 1.4–2 mm. Achenes oblong-ovate, 1–1.8 × 0.6–0.9 mm, 0.3–0.5 mm thick. 2n = 70. [details]

Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Kongl. Vetensk. Acad. Nya Handl. 1803: 145 1803 to Kongl. Vetensk....  
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Kongl. Vetensk. Acad. Nya Handl. 1803: 145 1803 to Kongl. Vetensk. Acad. Nya Handl. (1803) 145. , information provided by Alan E. on email Oct. 12 2020 More details could be found in [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex tribuloides Wahlenb.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676228 on 2025-09-12
Date
action
by
2023-09-06 07:28:28Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-03-11 11:19:03Z
changed

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Nomenclature

original description Wahlenberg, G. (1803). Inledning til Caricographien. <em>Kongl. Vetenskaps Academiens Nya Handlingar.</em> 24: 138-170., available online at https://www.biodiversitylibrary.org/page/46986891
page(s): 145 [details] 

basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details] 

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

From editor or global species database
Description Plants densely cespitose. Culms 50–110 cm; vegetative culms with numerous leaves spaced evenly along distal 1/2. Leaves: sheaths adaxially green-veined nearly to collar, with ± triangular white-hyaline area to 3–8 mm proximal to collar, somewhat loose, expanded near summits, ± wing-angled, adaxially firm, summits U-shaped, somewhat thickened, slightly prolonged beyond collar; distal ligules 4–8(–12) mm; blades 4–10 per fertile culm, 15–40 cm × (2–)3–7 mm. Inflorescences erect, dense distally, brown, 2–5(–8) cm × 10–20 mm; proximal internode 2–20 mm; 2d internode 2–13 mm; proximal bracts bristlelike, 1(–8) cm. Spikes 6–15, overlapping or distinct, ovoid-oblong to globose, 6–12(–16) × 4–8 mm, base rounded to tapered, apex rounded. Pistillate scales white-hyaline or pale silvery brown with green midstripe, lanceolate, (1.9–)2.5–3 mm, 1/2 length of and narrower than perigynia, apex acute to acuminate. Perigynia more than (30–)40 per spike, appressed-ascending to ascending, pale green to pale brown, 3–6-veined abaxially, conspicuously or, occasionally, faintly, 2–4-veined adaxially, often somewhat asymmetric, ovate-lanceolate to ovate-elliptic, plano-convex, 3–5.4 × 1.1–1.7 mm, 0.3–0.5 mm thick, margin flat, including wing 0.1–0.5 mm wide; beak tip flat, ciliate-serrulate, abaxial suture with golden to dark brown hyaline margin, distance from beak tip to achene 1.4–2 mm. Achenes oblong-ovate, 1–1.8 × 0.6–0.9 mm, 0.3–0.5 mm thick. 2n = 70. [details]

Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Kongl. Vetensk. Acad. Nya Handl. 1803: 145 1803 to Kongl. Vetensk. Acad. Nya Handl. (1803) 145. , information provided by Alan E. on email Oct. 12 2020 More details could be found in [details]