Cyperaceae name details
Carex filiformis L.
1694974 (urn:lsid:marinespecies.org:taxname:1694974)
unaccepted
Species
- Subspecies Carex filiformis subsp. aematorhyncha (Desv.) Kük. accepted as Carex aematorrhyncha Desv.
- Variety Carex filiformis var. aematorhyncha (Desv.) W.Boott accepted as Carex aematorrhyncha Desv.
- Variety Carex filiformis var. aematorrhyncha (Desv.) W.Boott accepted as Carex aematorrhyncha Desv.
- Variety Carex filiformis var. australis L.H.Bailey accepted as Carex lasiocarpa var. lasiocarpa Ehrh.
- Variety Carex filiformis var. gracilis Kurtz ex Kük. accepted as Carex aematorrhyncha var. aematorhyncha Desv.
- Variety Carex filiformis var. lanuginosa (Michx.) Britton, Sterns & Poggenb. accepted as Carex lasiocarpa var. americana Fernald
- Variety Carex filiformis var. latifolia Boeckeler accepted as Carex lasiocarpa var. lasiocarpa Ehrh.
- Variety Carex filiformis var. occultans Franch. accepted as Carex lasiocarpa var. occultans (Franch.) Kük.
terrestrial
Not documented
Description Rhizomes long-creeping, often very slender, sometimes forming dense patches; shoots 2–3 per tuft; roots pale; scales...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Sp. Pl. 976 1753 to Sp. Pl. : 976 (1753), information provided by...
Description Rhizomes long-creeping, often very slender, sometimes forming dense patches; shoots 2–3 per tuft; roots pale; scales red-brown, shiny, with sharp points, persistent. Stems 20–50 cm, rough above, trigonous, slender. Leaves 15–40 cm × 1.5–2 mm, rough, flat, gradually tapering to a fine point, ± glaucous, grey-brown on decay, often overwintering; hypostomous; sheaths red or red-purple, becoming brown, often persistent and fibrillose on splitting, with inner face hyaline; apex concave; ligule 1–2 mm, acute to obtuse, tubular, entire. Inflorescence 1/6 or less of stem length; upper bracts setaceous, lower leaf-like, ± equalling the inflorescence, the lowest not or shortly sheathing. Male spikes 1–2, 12–25 mm; male glumes 4–5 mm, elliptic-ovate, red-brown with paler midrib and hyaline margin, apex ± acute, often apiculate. Female spikes 1–2, contiguous, 5–14 mm, oblong-ovoid to subglobose; female glumes 2–3 mm, ovate to subrotund, purple- or red-brown with pale midrib, apex acute or lowermost in spike mucronate. Utricles 2–3 mm, subglobose or pyriform, trigonous, densely tomentose, green; beak 1–0.2 mm, notched; stigmas 3; nut obovoid or pyriform, trigonous. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Sp. Pl. 976 1753 to Sp. Pl. : 976 (1753), information provided by...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Sp. Pl. 976 1753 to Sp. Pl. : 976 (1753), information provided by Alan E. on email Jun. 07 2021 More details could be found in The Plant L [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex filiformis L.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1694974 on 2026-05-07
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
basis of record
Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
Taxonomy
From editor or global species database
Description Rhizomes long-creeping, often very slender, sometimes forming dense patches; shoots 2–3 per tuft; roots pale; scales red-brown, shiny, with sharp points, persistent. Stems 20–50 cm, rough above, trigonous, slender. Leaves 15–40 cm × 1.5–2 mm, rough, flat, gradually tapering to a fine point, ± glaucous, grey-brown on decay, often overwintering; hypostomous; sheaths red or red-purple, becoming brown, often persistent and fibrillose on splitting, with inner face hyaline; apex concave; ligule 1–2 mm, acute to obtuse, tubular, entire. Inflorescence 1/6 or less of stem length; upper bracts setaceous, lower leaf-like, ± equalling the inflorescence, the lowest not or shortly sheathing. Male spikes 1–2, 12–25 mm; male glumes 4–5 mm, elliptic-ovate, red-brown with paler midrib and hyaline margin, apex ± acute, often apiculate. Female spikes 1–2, contiguous, 5–14 mm, oblong-ovoid to subglobose; female glumes 2–3 mm, ovate to subrotund, purple- or red-brown with pale midrib, apex acute or lowermost in spike mucronate. Utricles 2–3 mm, subglobose or pyriform, trigonous, densely tomentose, green; beak 1–0.2 mm, notched; stigmas 3; nut obovoid or pyriform, trigonous. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Sp. Pl. 976 1753 to Sp. Pl. : 976 (1753), information provided by Alan E. on email Jun. 07 2021 More details could be found in The Plant L [details]
