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Cyperaceae taxon details

Carex filifolia Nutt.

1677711  (urn:lsid:marinespecies.org:taxname:1677711)

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Nuttall, T. (1818). The genera of North American plants, and a catalogue of the species, to the year 1817. 2., available online at https://www.biodiversitylibrary.org/page/723958#page/1/mode/1up
page(s): 204 [details] 
Description Culms round or trigonous, filiform, wiry, angles proximal to spike blunt or sharp, 5–35 cm, shorter than or longer than...  
Description Culms round or trigonous, filiform, wiry, angles proximal to spike blunt or sharp, 5–35 cm, shorter than or longer than leaves. Leaves: basal leaf sheaths fibrillose when old; blades yellow-green or bright green, involute-cylindric, quill-shaped, 6–25 cm, 0.3–0.7 mm wide near base. Spike 7–30 × 3–7 mm, staminate portion 4–14 mm. Proximal pistillate scales pale red-brown with white or gold margins, broadly obovate, 2.3–4.5(–6.5) × 1.7–4 mm, shorter or longer than perigynia, apex obtuse to short-awned. Staminate scales red-brown with broad, white margins, broadly obovate, apex obtuse. Perigynia (2–)5–18, appressed to ascending, white to gold, obovate to orbiculate, 1.9–4.8 × 1.3–2 mm, body conspicuously hirsute or pubescent, at least distal 1/4 (occasionally only proximal to beak); beak 0–0.8 mm, style base often conspicuously exserted from beak; rachilla present. Achenes obovate to elliptic, 1.5–3.3 × 1.1–1.9 mm. Stigmas ± black.
 [details]

Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Gen. N. Amer. Pl. 2: 204 1818 to Gen. N. Amer. Pl. [Nuttall]. 2:...  
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Gen. N. Amer. Pl. 2: 204 1818 to Gen. N. Amer. Pl. [Nuttall]. 2: 204. 1818 [14 Jul 1818] , 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 filifolia Nutt.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677711 on 2025-09-13
Date
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2023-09-06 07:28:28Z
created
2024-12-10 11:47:54Z
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2025-03-11 11:19:03Z
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Nomenclature

original description Nuttall, T. (1818). The genera of North American plants, and a catalogue of the species, to the year 1817. 2., available online at https://www.biodiversitylibrary.org/page/723958#page/1/mode/1up
page(s): 204 [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 Culms round or trigonous, filiform, wiry, angles proximal to spike blunt or sharp, 5–35 cm, shorter than or longer than leaves. Leaves: basal leaf sheaths fibrillose when old; blades yellow-green or bright green, involute-cylindric, quill-shaped, 6–25 cm, 0.3–0.7 mm wide near base. Spike 7–30 × 3–7 mm, staminate portion 4–14 mm. Proximal pistillate scales pale red-brown with white or gold margins, broadly obovate, 2.3–4.5(–6.5) × 1.7–4 mm, shorter or longer than perigynia, apex obtuse to short-awned. Staminate scales red-brown with broad, white margins, broadly obovate, apex obtuse. Perigynia (2–)5–18, appressed to ascending, white to gold, obovate to orbiculate, 1.9–4.8 × 1.3–2 mm, body conspicuously hirsute or pubescent, at least distal 1/4 (occasionally only proximal to beak); beak 0–0.8 mm, style base often conspicuously exserted from beak; rachilla present. Achenes obovate to elliptic, 1.5–3.3 × 1.1–1.9 mm. Stigmas ± black.
 [details]

Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Gen. N. Amer. Pl. 2: 204 1818 to Gen. N. Amer. Pl. [Nuttall]. 2: 204. 1818 [14 Jul 1818] , information provided by Alan E. on email Oct. 12 2020 More details could be found in [details]