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Cyperaceae taxon details

Carex haydeniana Olney

To New York Botanical Garden Steere Herbarium (Carex_festiva var. decumbens_NY11106_lectotype_1)
To New York Botanical Garden Steere Herbarium (Carex_festiva var. decumbens_NY11106_lectotype_1)

1676363  (urn:lsid:marinespecies.org:taxname:1676363)

  1. Biota
  2. Plantae (Kingdom)
  3. Viridiplantae (Subkingdom)
  4. Streptophyta (Infrakingdom)
  5. Tracheophyta (Phylum (Division))
  6. Spermatophytina (Subphylum (Subdivision))
  7. Magnoliopsida (Class)
  8. Lilianae (Superorder)
  9. Poales (Order)
  10. Cyperaceae (Family)
  11. Cariceae (Tribe)
  12. Carex (Genus)
  13. Carex subg. Vignea (Subgenus)
  14. Carex sect. Cyperoideae (Section)
  15. Carex haydeniana (Species)
accepted
Species

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terrestrial
(1871). Botany [Fortieth Parallel], available online at https://www.biodiversitylibrary.org/page/37638215#page/11/mode/1up
page(s): 366 [details] 
Lectotype  (of Carex festiva var. decumbens Holm) NY...  
Lectotype (of Carex festiva var. decumbens Holm) NY 11106, geounit Colorado [details]
Description Plants densely cespitose. Culms 9–30(–40) cm. Leaves: sheaths adaxially white-hyaline, sometimes cross-corrugate...  
Description Plants densely cespitose. Culms 9–30(–40) cm. Leaves: sheaths adaxially white-hyaline, sometimes cross-corrugate adaxially, summits usually U-shaped, sometimes prolonged to 3 mm beyond collar; distal ligules 0.3–2 mm; blades 3–4(–5) per fertile culm, 3–16 cm × 1.5–4 mm. Inflorescences dense, dark brown, green and brown, or gold, 1.1–2.1 cm × 13–18 mm; proximal internode 1–2.5(–3.4) mm; 2d internode 0.5–2 mm; proximal bracts scalelike, shorter than inflorescences. Spikes 5–7(–9), aggregated, individually indistinct broadly ovoid, 6.5–10 × 4.5–8 mm, base and apex usually rounded. Pistillate scales reddish or coppery to dark brown, sometimes with whitish or pale gold midstripe, narrowly ovate to ovate, 3–4.8 mm, shorter and narrower than perigynia, apex acute to obtuse. Perigynia ascending to ascending-spreading, light brown to coppery or dark brown, conspicuously 0–3(–8)-veined adaxially, lance-ovate to broadly ovate, flat except over achene, 4–6.5 × 1.5–2.6 mm, 0.3–0.5 mm thick, margin flat, including wing 0.3–0.6(–0.8) mm wide, ciliate-serrulate at least on distal body; beak dark brown to black, white-hyaline at tip, cylindric, unwinged, at least 1 mm, ± entire for 0.3–0.6 mm, abaxial suture inconspicuous or with conspicuous white margin, distance from beak tip to achene (2.3–)2.6–3.8 mm. Achenes elliptic or ovate, (1.2–)1.4–1.8 × 0.8–1.1(–1.3) mm, 0.3–0.45 mm thick. 2n = 82.
 [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Botany [Fortieth Parallel] 366 1871 to Botany [Fortieth Parallel] :...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Botany [Fortieth Parallel] 366 1871 to Botany [Fortieth Parallel] : 366 (1871), 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 haydeniana Olney. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676363 on 2025-09-12
Date
action
by
2023-09-06 07:28:28Z
created
Jiménez-Mejías, Pedro
2024-12-10 11:47:54Z
unchecked
db_admin
2025-03-11 11:19:03Z
changed
Márquez-Corro, José Ignacio

Creative Commons License The webpage text is licensed under a Creative Commons Attribution 4.0 License


Nomenclature

original description (1871). Botany [Fortieth Parallel], available online at https://www.biodiversitylibrary.org/page/37638215#page/11/mode/1up
page(s): 366 [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 
   

Lectotype (of Carex festiva var. decumbens Holm) NY 11106, geounit Colorado [details]
Syntype GH 00027256, geounit United States [details]
From editor or global species database
Description Plants densely cespitose. Culms 9–30(–40) cm. Leaves: sheaths adaxially white-hyaline, sometimes cross-corrugate adaxially, summits usually U-shaped, sometimes prolonged to 3 mm beyond collar; distal ligules 0.3–2 mm; blades 3–4(–5) per fertile culm, 3–16 cm × 1.5–4 mm. Inflorescences dense, dark brown, green and brown, or gold, 1.1–2.1 cm × 13–18 mm; proximal internode 1–2.5(–3.4) mm; 2d internode 0.5–2 mm; proximal bracts scalelike, shorter than inflorescences. Spikes 5–7(–9), aggregated, individually indistinct broadly ovoid, 6.5–10 × 4.5–8 mm, base and apex usually rounded. Pistillate scales reddish or coppery to dark brown, sometimes with whitish or pale gold midstripe, narrowly ovate to ovate, 3–4.8 mm, shorter and narrower than perigynia, apex acute to obtuse. Perigynia ascending to ascending-spreading, light brown to coppery or dark brown, conspicuously 0–3(–8)-veined adaxially, lance-ovate to broadly ovate, flat except over achene, 4–6.5 × 1.5–2.6 mm, 0.3–0.5 mm thick, margin flat, including wing 0.3–0.6(–0.8) mm wide, ciliate-serrulate at least on distal body; beak dark brown to black, white-hyaline at tip, cylindric, unwinged, at least 1 mm, ± entire for 0.3–0.6 mm, abaxial suture inconspicuous or with conspicuous white margin, distance from beak tip to achene (2.3–)2.6–3.8 mm. Achenes elliptic or ovate, (1.2–)1.4–1.8 × 0.8–1.1(–1.3) mm, 0.3–0.45 mm thick. 2n = 82.
 [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Botany [Fortieth Parallel] 366 1871 to Botany [Fortieth Parallel] : 366 (1871), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (19 publications) (from synonym Carex nubicola Mack.)
To Biodiversity Heritage Library (33 publications) 
To Biodiversity Heritage Library (8 publications) (from synonym Carex festiva var. decumbens Holm)
To European Nucleotide Archive, ENA (Carex haydeniana) 
To GenBank (12 nucleotides; 3 proteins) 
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Carex festiva var. decumbens Holm)
To International Plant Names Index (IPNI) (from synonym Carex macloviana subsp. haydeniana (Olney) Roy L.Taylor & MacBryde)
To International Plant Names Index (IPNI) (from synonym Carex festiva var. haydeniana (Olney) W.Boott)
To International Plant Names Index (IPNI) (from synonym Carex macloviana var. haydeniana (Olney) Holm)
To International Plant Names Index (IPNI) (from synonym Carex nubicola Mack.)
To New York Botanical Garden Steere Herbarium (Carex_festiva var. decumbens_NY11106_lectotype_1) (from synonym Carex festiva var. decumbens Holm)
To Plants of the World Online (from synonym Carex festiva var. haydeniana (Olney) W.Boott)
To Plants of the World Online (from synonym Carex festiva var. decumbens Holm)
To Plants of the World Online (from synonym Carex macloviana subsp. haydeniana (Olney) Roy L.Taylor & MacBryde)
To Plants of the World Online 
To Plants of the World Online (from synonym Carex nubicola Mack.)
To Plants of the World Online (from synonym Carex macloviana var. haydeniana (Olney) Holm)
To The Plant List (from synonym Carex macloviana var. haydeniana (Olney) Kük.)
To US Herbarium (Carex festiva decumbens US3166589 type 1) (from synonym Carex festiva var. decumbens Holm)
To US Herbarium (Carex festiva decumbens US368820 type 1) (from synonym Carex festiva var. decumbens Holm)
To US Herbarium (Carex haydeniana US319259 type 1) 
To US Herbarium (Carex haydeniana US319464 type 1) 
From editor or global species database
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