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Cyperaceae taxon details

Carex petasata Dewey

To New York Botanical Garden Steere Herbarium (Carex_petasata_NY231122_type_1)
To New York Botanical Garden Steere Herbarium (Carex_petasata_NY231122_type_1)

1677946  (urn:lsid:marinespecies.org:taxname:1677946)

  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 petasata (Species)
accepted
Species

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terrestrial
Dewey, C. (1836). Caricography. <em>American Journal of Science, and Arts.</em> 29: 245-253., available online at https://www.biodiversitylibrary.org/page/15952527#page/278/mode/1up
page(s): 246 [details] 
Description Plants densely cespitose. Culms 30–85 cm. Leaves: sheaths adaxially white-hyaline, summits U-shaped, prolonged more than...  
Description Plants densely cespitose. Culms 30–85 cm. Leaves: sheaths adaxially white-hyaline, summits U-shaped, prolonged more than 2.8 mm; distal ligules 2–5 mm; blades (2–)3–4 per fertile culm, 10–30(–40) cm × 2–4(–5) mm. Inflorescences open, stiffly erect, green, gold, or pale brown, (2–)2.5–4.5(–6) cm × 9–16 mm; proximal internode 4.5–9 mm; 2d internode (2–)5–9(–11) mm; proximal bracts scalelike, awn shorter than inflorescences. Spikes (3–)4–7, distant, distinct, fusiform, ovoid, or obovoid, 15–27 × 5.5–9 mm, base tapered to attenuate, apex acute or rounded. Pistillate scales whitish green or gold, with greenish to gold midstripe, lanceolate or ovate, 5.8–7.6 mm, ± equaling perigynia, concealing beaks, margin white, 0.2–0.7 mm wide, apex acute to acuminate. Staminate scales with white-hyaline margin (0.2–)0.3–0.7 mm wide. Perigynia appressed to ascending, whitish green to brown, conspicuously 10–19-veined abaxially, conspicuously 4–10-veined adaxially, at least 3 adaxially veins longer than achene, lanceolate to ovate, plano-convex, 6–8 × 1.7–2.4 mm, 0.5–0.9 mm thick, margin flat, including wing (0.2–)0.3–0.5 mm wide, ciliate-serrulate at least distally; beak green, red-brown, brown, or gold, white-hyaline at tip, cylindric, unwinged, ± entire to 1 mm or flat, ± ciliate-serrulate, abaxial suture with conspicuous white margin, distance from beak tip to achene (2.8–)3.2–4.6 mm. Achenes elliptic to ovte-elliptic, 2.2–3 × (1.1–)1.3–1.8 mm, 0.5–0.7 mm thick. [details]

Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Amer. J. Sci. Arts 29: 246 1836 to Amer. J. Sci. Arts 29: 246. 1836...  
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Amer. J. Sci. Arts 29: 246 1836 to Amer. J. Sci. Arts 29: 246. 1836 , 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 petasata Dewey. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1677946 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 Dewey, C. (1836). Caricography. <em>American Journal of Science, and Arts.</em> 29: 245-253., available online at https://www.biodiversitylibrary.org/page/15952527#page/278/mode/1up
page(s): 246 [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 
   

Syntype 00231122, geounit United States [details]
From editor or global species database
Description Plants densely cespitose. Culms 30–85 cm. Leaves: sheaths adaxially white-hyaline, summits U-shaped, prolonged more than 2.8 mm; distal ligules 2–5 mm; blades (2–)3–4 per fertile culm, 10–30(–40) cm × 2–4(–5) mm. Inflorescences open, stiffly erect, green, gold, or pale brown, (2–)2.5–4.5(–6) cm × 9–16 mm; proximal internode 4.5–9 mm; 2d internode (2–)5–9(–11) mm; proximal bracts scalelike, awn shorter than inflorescences. Spikes (3–)4–7, distant, distinct, fusiform, ovoid, or obovoid, 15–27 × 5.5–9 mm, base tapered to attenuate, apex acute or rounded. Pistillate scales whitish green or gold, with greenish to gold midstripe, lanceolate or ovate, 5.8–7.6 mm, ± equaling perigynia, concealing beaks, margin white, 0.2–0.7 mm wide, apex acute to acuminate. Staminate scales with white-hyaline margin (0.2–)0.3–0.7 mm wide. Perigynia appressed to ascending, whitish green to brown, conspicuously 10–19-veined abaxially, conspicuously 4–10-veined adaxially, at least 3 adaxially veins longer than achene, lanceolate to ovate, plano-convex, 6–8 × 1.7–2.4 mm, 0.5–0.9 mm thick, margin flat, including wing (0.2–)0.3–0.5 mm wide, ciliate-serrulate at least distally; beak green, red-brown, brown, or gold, white-hyaline at tip, cylindric, unwinged, ± entire to 1 mm or flat, ± ciliate-serrulate, abaxial suture with conspicuous white margin, distance from beak tip to achene (2.8–)3.2–4.6 mm. Achenes elliptic to ovte-elliptic, 2.2–3 × (1.1–)1.3–1.8 mm, 0.5–0.7 mm thick. [details]

Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Amer. J. Sci. Arts 29: 246 1836 to Amer. J. Sci. Arts 29: 246. 1836 , 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 Carex petasata var. pleiostachya Kük.)
To Biodiversity Heritage Library (3 publications) (from synonym Carex liddonii Boott)
To Biodiversity Heritage Library (5 publications) (from synonym Carex adusta var. minor Boott)
To Biodiversity Heritage Library (5 publications) (from synonym Carex leporina var. americana Olney)
To Biodiversity Heritage Library (96 publications) 
To European Nucleotide Archive, ENA (Carex petasata) 
To GenBank (11 nucleotides; 2 proteins) 
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Carex liddonii Boott)
To International Plant Names Index (IPNI) (from synonym Carex rufovariegata Boeckeler)
To International Plant Names Index (IPNI) (from synonym Carex leporina subsp. americana Olney ex L.H.Bailey)
To International Plant Names Index (IPNI) (from synonym Carex petasata var. minor (Boott) B.Boivin)
To International Plant Names Index (IPNI) (from synonym Carex adusta var. minor Boott)
To International Plant Names Index (IPNI) (from synonym Carex leporina var. americana Olney)
To International Plant Names Index (IPNI) (from synonym Carex petasata var. pleiostachya Kük.)
To New York Botanical Garden Steere Herbarium (Carex_petasata_NY231122_type_1) 
To New York Botanical Garden Steere Herbarium (Carex_petasata_NY231122_type_2) 
To New York Botanical Garden Steere Herbarium (Carex_petasata_NY231122_type_3) 
To Plants of the World Online 
To Plants of the World Online (from synonym Carex adusta var. minor Boott)
To Plants of the World Online (from synonym Carex leporina subsp. americana Olney ex L.H.Bailey)
To Plants of the World Online (from synonym Carex liddonii Boott)
To Plants of the World Online (from synonym Carex rufovariegata Boeckeler)
To Plants of the World Online (from synonym Carex leporina var. americana Olney)
To Plants of the World Online (from synonym Carex petasata var. pleiostachya Kük.)
To Plants of the World Online (from synonym Carex petasata var. minor (Boott) B.Boivin)
To Royal Botanic Gardens, Kew (Carex petasata K000907776 type 1) 
From editor or global species database
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