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Cyperaceae taxon details

Carex oronensis Fernald

1676663  (urn:lsid:marinespecies.org:taxname:1676663)

accepted
Species
terrestrial
Fernald, M. L. (1902). The variation of some boreal Carices. <em>Proceedings of the American Academy of Arts and Sciences.</em> 37: 495-514., available online at https://www.biodiversitylibrary.org/page/4008650
page(s): 471 [details] 
Description Plants loosely cespitose. Culms 30–100 cm. Leaves: sheaths papillose, summits U-shaped; distal ligules 2.1–4.6 mm; blades...  
Description Plants loosely cespitose. Culms 30–100 cm. Leaves: sheaths papillose, summits U-shaped; distal ligules 2.1–4.6 mm; blades 3–4 per fertile culm, 18–23 cm × 2–4 mm. Inflorescences stiffly erect, open, coppery brown, 1.5–3.4 cm × 6–15 mm; proximal internode (1–)3–6(–9) mm; 2d internode 1–4 mm; proximal bracts usually scalelike, occasionally bristlelike. Spikes (3–)5–6(–10), distant, individually distinct, rhomboid-ovoid, 5–10 × 3–7 mm, base and apex tapered. Pistillate scales mid to dark brown, usually with pale midstripe, glossy, lanceolate, (3–)3.5–3.7(–4) mm, subequal to perigynia in length and width, margin white-hyaline, to 0.15 mm wide, apex acute. Perigynia ascending, light green to straw colored, pearlescent, often with adaxial reddish brown blotch, conspicuously 7–15-veined abaxially, usually inconspicuously or conspicuously (6–) 9–12-veined adaxially, lanceolate, plano-convex, 2.9–4.3 × 0.9–1.4 mm, 0.6 mm thick, margin flat, including wing 0.07–0.4 mm wide, unwinged below median; beak brown, white-hyaline at tip, flat, ciliate-serrulate, abaxial suture conspicuous, often with narrow white-hyaline margin, distance from beak tip to achene 1.5–2.4 mm. Achenes ovate, 1.3–1.6 × 0.7-1.4 mm, 0.3–0.5 mm thick. 2n = 74. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Proc. Amer. Acad. Arts 37: 471 1902 to Proc. Amer. Acad. Arts 37: 471...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Proc. Amer. Acad. Arts 37: 471 1902 to Proc. Amer. Acad. Arts 37: 471 (1902), 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 oronensis Fernald. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676663 on 2025-09-13
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 Fernald, M. L. (1902). The variation of some boreal Carices. <em>Proceedings of the American Academy of Arts and Sciences.</em> 37: 495-514., available online at https://www.biodiversitylibrary.org/page/4008650
page(s): 471 [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 
   

Syntype NY 00011260, geounit Maine [details]
From editor or global species database
Description Plants loosely cespitose. Culms 30–100 cm. Leaves: sheaths papillose, summits U-shaped; distal ligules 2.1–4.6 mm; blades 3–4 per fertile culm, 18–23 cm × 2–4 mm. Inflorescences stiffly erect, open, coppery brown, 1.5–3.4 cm × 6–15 mm; proximal internode (1–)3–6(–9) mm; 2d internode 1–4 mm; proximal bracts usually scalelike, occasionally bristlelike. Spikes (3–)5–6(–10), distant, individually distinct, rhomboid-ovoid, 5–10 × 3–7 mm, base and apex tapered. Pistillate scales mid to dark brown, usually with pale midstripe, glossy, lanceolate, (3–)3.5–3.7(–4) mm, subequal to perigynia in length and width, margin white-hyaline, to 0.15 mm wide, apex acute. Perigynia ascending, light green to straw colored, pearlescent, often with adaxial reddish brown blotch, conspicuously 7–15-veined abaxially, usually inconspicuously or conspicuously (6–) 9–12-veined adaxially, lanceolate, plano-convex, 2.9–4.3 × 0.9–1.4 mm, 0.6 mm thick, margin flat, including wing 0.07–0.4 mm wide, unwinged below median; beak brown, white-hyaline at tip, flat, ciliate-serrulate, abaxial suture conspicuous, often with narrow white-hyaline margin, distance from beak tip to achene 1.5–2.4 mm. Achenes ovate, 1.3–1.6 × 0.7-1.4 mm, 0.3–0.5 mm thick. 2n = 74. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Proc. Amer. Acad. Arts 37: 471 1902 to Proc. Amer. Acad. Arts 37: 471 (1902), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]