Cyperaceae taxon details
Carex filifolia Nutt.
1677711 (urn:lsid:marinespecies.org:taxname:1677711)
accepted
Species
Olotrema filifolia (Nutt.) Raf. · unaccepted
Uncinia filifolia (Nutt.) Nees · unaccepted
- Variety Carex filifolia var. erostrata Kük.
- Variety Carex filifolia var. filifolia Nutt.
- Variety Carex filifolia var. miser L.H.Bailey accepted as Carex elynoides Holm
- Variety Carex filifolia var. valida Olney ex L.H.Bailey accepted as Carex oreocharis Holm
terrestrial
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]
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...
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Gen. N. Amer. Pl. 2: 204 1818 to Gen. N. Amer. Pl. [Nuttall]. 2:...
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]
[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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2024-12-10 11:47:54Z
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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]
page(s): 204 [details]
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 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]
To Biodiversity Heritage Library (1 publication) (from synonym Olotrema filifolia (Nutt.) Raf.)
To Biodiversity Heritage Library (360 publications)
To Biodiversity Heritage Library (4 publications) (from synonym Uncinia filifolia (Nutt.) Nees)
To European Nucleotide Archive, ENA (Carex filifolia)
To International Plant Names Index (IPNI) (from synonym Olotrema filifolia (Nutt.) Raf.)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Uncinia filifolia (Nutt.) Nees)
To Plants of the World Online
To Plants of the World Online (from synonym Olotrema filifolia (Nutt.) Raf.)
To Plants of the World Online (from synonym Uncinia filifolia (Nutt.) Nees)
To Biodiversity Heritage Library (360 publications)
To Biodiversity Heritage Library (4 publications) (from synonym Uncinia filifolia (Nutt.) Nees)
To European Nucleotide Archive, ENA (Carex filifolia)
To International Plant Names Index (IPNI) (from synonym Olotrema filifolia (Nutt.) Raf.)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Uncinia filifolia (Nutt.) Nees)
To Plants of the World Online
To Plants of the World Online (from synonym Olotrema filifolia (Nutt.) Raf.)
To Plants of the World Online (from synonym Uncinia filifolia (Nutt.) Nees)