Cyperaceae taxon details
Carex illota L.H.Bailey
1676466 (urn:lsid:marinespecies.org:taxname:1676466)
accepted
Species
Carex bonplandii var. angustifolia W.Boott · unaccepted
Carex bonplandii var. minor Boott · unaccepted
Carex dieckii Boeckeler · unaccepted
terrestrial
Bailey, L. H. (1889). Notes on Carex. 11. Studies of the types of the various species of the genus Carex. Memoirs of the Torrey Botanical Club, 1: 1-85., available online at https://www.biodiversitylibrary.org/page/31679539#page/7/mode/1up
page(s): 15 [details]
page(s): 15 [details]
Holotype YU 001006, geounit Colorado
Holotype YU 001006, geounit Colorado [details]
Description Plants densely cespitose. Culms 15–38 cm. Leaves: sheath summits white-hyaline, green ribbed, U-shaped, occasionally...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Torrey Bot. Club 1: 15 1889 to Mem. Torrey Bot. Club 1: 15...
Description Plants densely cespitose. Culms 15–38 cm. Leaves: sheath summits white-hyaline, green ribbed, U-shaped, occasionally prolonged to 4 mm distal to collar; distal ligules 1–3(–3.5) mm; blades 2–4 per fertile culm, 4.5–18 cm × 1.5–2.5 mm. Inflorescences nodding, dense, dark or medium brown, 1–1.2 cm × 5.5–10 mm; proximal internode 1.3–3 mm; 2d internode 0.6–1.5 mm; proximal bracts scalelike to bristlelike. Spikes 3–6, usually individually indistinct, ovoid to broadly ovoid, 4.5–6.5 × 2.5–5.5 mm, base and apex acute to rounded; terminal spike without conspicuous staminate base. Pistillate scales dark brown, usually with pale or green midstripe, ovate, 1.5–2.5(–3.5) mm, usually shorter, narrower than perigynia, margin occasionally hyaline gold, to 0.4 mm wide, apex obtuse or acute. Perigynia ascending-spreading to spreading, gold to dark brown, conspicuously 0–7-veined abaxially, conspicuously 0–4-veined adaxially, ovate, plano-convex, 2.6–3.2 × 0.9–1.3 mm, 0.5–0.65 mm thick, margin unwinged, pithlike tissue usually present in proximal perigynia walls; beak medium or dark brown at tip, often with white-hyaline, cylindric to somewhat flat, abaxial suture with conspicuous white margin, distance from beak tip to achene 1.2–1.6 mm, entire. Achenes ovate to obovate, 1.2–1.5 × 0.8–1 mm, 0.4–0.5 mm thick. 2n = 64
[details]
[details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Torrey Bot. Club 1: 15 1889 to Mem. Torrey Bot. Club 1: 15...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Torrey Bot. Club 1: 15 1889 to Mem. Torrey Bot. Club 1: 15 (1889), 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 illota L.H.Bailey. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676466 on 2025-09-13
Date
action
by
2024-12-10 11:47:54Z
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db_admin
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Nomenclature
original description
Bailey, L. H. (1889). Notes on Carex. 11. Studies of the types of the various species of the genus Carex. Memoirs of the Torrey Botanical Club, 1: 1-85., available online at https://www.biodiversitylibrary.org/page/31679539#page/7/mode/1up
page(s): 15 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 15 [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 15–38 cm. Leaves: sheath summits white-hyaline, green ribbed, U-shaped, occasionally prolonged to 4 mm distal to collar; distal ligules 1–3(–3.5) mm; blades 2–4 per fertile culm, 4.5–18 cm × 1.5–2.5 mm. Inflorescences nodding, dense, dark or medium brown, 1–1.2 cm × 5.5–10 mm; proximal internode 1.3–3 mm; 2d internode 0.6–1.5 mm; proximal bracts scalelike to bristlelike. Spikes 3–6, usually individually indistinct, ovoid to broadly ovoid, 4.5–6.5 × 2.5–5.5 mm, base and apex acute to rounded; terminal spike without conspicuous staminate base. Pistillate scales dark brown, usually with pale or green midstripe, ovate, 1.5–2.5(–3.5) mm, usually shorter, narrower than perigynia, margin occasionally hyaline gold, to 0.4 mm wide, apex obtuse or acute. Perigynia ascending-spreading to spreading, gold to dark brown, conspicuously 0–7-veined abaxially, conspicuously 0–4-veined adaxially, ovate, plano-convex, 2.6–3.2 × 0.9–1.3 mm, 0.5–0.65 mm thick, margin unwinged, pithlike tissue usually present in proximal perigynia walls; beak medium or dark brown at tip, often with white-hyaline, cylindric to somewhat flat, abaxial suture with conspicuous white margin, distance from beak tip to achene 1.2–1.6 mm, entire. Achenes ovate to obovate, 1.2–1.5 × 0.8–1 mm, 0.4–0.5 mm thick. 2n = 64[details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Torrey Bot. Club 1: 15 1889 to Mem. Torrey Bot. Club 1: 15 (1889), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (1 publication) (from synonym Carex bonplandii var. angustifolia W.Boott)
To Biodiversity Heritage Library (4 publications) (from synonym Carex bonplandii var. minor Boott)
To Biodiversity Heritage Library (72 publications)
To European Nucleotide Archive, ENA (Carex illota)
To GenBank (49 nucleotides; 22 proteins)
To Genève Herbarium (Carex illota G00191544 type 1)
To International Plant Names Index (IPNI) (from synonym Carex dieckii Boeckeler)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex bonplandii var. minor Boott)
To Plants of the World Online (from synonym Carex bonplandii var. minor Boott)
To Plants of the World Online (from synonym Carex dieckii Boeckeler)
To Plants of the World Online
To Plants of the World Online (from synonym Carex bonplandii var. angustifolia W.Boott)
To Royal Botanic Gardens, Kew (Carex illota K000907772 type 1)
To US Herbarium (Carex bonplandii minor US28268 type 1) (from synonym Carex bonplandii var. minor Boott)
To Biodiversity Heritage Library (4 publications) (from synonym Carex bonplandii var. minor Boott)
To Biodiversity Heritage Library (72 publications)
To European Nucleotide Archive, ENA (Carex illota)
To GenBank (49 nucleotides; 22 proteins)
To Genève Herbarium (Carex illota G00191544 type 1)
To International Plant Names Index (IPNI) (from synonym Carex dieckii Boeckeler)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex bonplandii var. minor Boott)
To Plants of the World Online (from synonym Carex bonplandii var. minor Boott)
To Plants of the World Online (from synonym Carex dieckii Boeckeler)
To Plants of the World Online
To Plants of the World Online (from synonym Carex bonplandii var. angustifolia W.Boott)
To Royal Botanic Gardens, Kew (Carex illota K000907772 type 1)
To US Herbarium (Carex bonplandii minor US28268 type 1) (from synonym Carex bonplandii var. minor Boott)
From editor or global species database
