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Cyperaceae taxon details

Carex petitiana A.Rich.

To Royal Botanic Gardens, Kew (Carex petitiana K000363462 isotype 1)
To Royal Botanic Gardens, Kew (Carex petitiana K000363462 isotype 1)

1677948  (urn:lsid:marinespecies.org:taxname:1677948)

  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. Carex (Subgenus)
  14. Carex sect. Spirostachyae (Section)
  15. Carex petitiana (Species)
accepted
Species

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terrestrial
Richard, A. (1850). <em>Tentamen Florae Abyssinicae seu Enumeratio Plantarum hucusque in plerisque Abyssiniae.</em> 2: 513.
page(s): 513 [details] OpenAccess publication
Lectotype  K 000363591, geounit Tanzania,  P 466086  
Holotype K 000363591, geounit Tanzania [details]
Lectotype P 466086 [details]
Description Rhizome caespitose, with short, or very exceptionally long, internodes. Stems (27.5)40–133 cm, ± stout, trigonous,...  
Description Rhizome caespitose, with short, or very exceptionally long, internodes. Stems (27.5)40–133 cm, ± stout, trigonous, smooth, green to yellowish-green. Leaves (12)15–60 cm × (4)4.8–10 mm, keeled to plicate, rigid, slightly scabrid on the edges and apical parts; sheaths brown to reddish-brown; ligule 1.5–10.5 mm, obtuse or acute; anteligule edge concave to convex. Inflorescence (7)11–43 cm, lowest internode (3)5–18.5 cm and second one (0.2)2–12 cm. Lowest bract 5.5–35 cm × 2–7.5 mm, shorter or longer than the inflorescence; sheath 1.8–7(8) cm long, the inner side brown, reddish-brown or purplish. Spikes 3–9, subhomomorphic to subheteromorphic (rarely heteromorphic), generally all spikes gynecandrous, with the male part increasingly longer as going upwards in the stem, sometimes lowest spikes entirely female (more rarely 1 male terminal and the rest female); terminal spike 3.2–6.5 cm × (5)7–12 mm, clavate (rarely terete), sessile or with a peduncle up to 3.3 cm; lateral spikes (1)2–6 cm × 7–12 mm, dense-flowered, clavate to widely terete or ellipsoid, solitary or in pairs, exceptionally with a few short branches at the base of the largest spikes, peduncle up to 7.5(12.5) cm. Male glumes (4.5)5.4–7.5(9) × (1)1.1–2.2(2.4) mm, oblong-elliptic to oblong-obovate, dark brown to dark reddish-brown with straw or green coloured midrib, mucronate or acuminate, mucro or acumen up to 1.5 mm, rarely obtuse. Female glumes 3.4–6(7) × (1.1)1.3–2.6 mm, widely oblong-elliptic, dark brown, reddish-brown or purplish-red, with wide and green or straw coloured midrib, mucro or acumen up to 1(1.5) mm, rarely, obtuse. Utricles (3.7)4–6(6.5) × 1.2–2.2(2.5) mm, ellipsoid-trigonous, straight, tetra-nerved to plurinerved, tapered to beak, greyish-green with reddish or purplish speckles; beak 1.1–1.6(1.8) mm, deeply bifid, with ± similar dorsal and ventral sinus, 0.4–0.6 mm depth, aculeolate (very rarely smooth). Achenes 2.5–3(3.2) × 1.1–1.6(1.9) mm, trigonous, oblong-elliptic to oblong-obovoid. 2n = 70. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Tent. Fl. Abyss. 2: 513. 1850 to Tent. Fl. Abyss. 2: 513 (1850),...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Tent. Fl. Abyss. 2: 513. 1850 to Tent. Fl. Abyss. 2: 513 (1850), 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 petitiana A.Rich.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677948 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 Richard, A. (1850). <em>Tentamen Florae Abyssinicae seu Enumeratio Plantarum hucusque in plerisque Abyssiniae.</em> 2: 513.
page(s): 513 [details] OpenAccess publication

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 
   

Holotype K 000363591, geounit Tanzania [details]
Lectotype P 466086 [details]
From editor or global species database
Description Rhizome caespitose, with short, or very exceptionally long, internodes. Stems (27.5)40–133 cm, ± stout, trigonous, smooth, green to yellowish-green. Leaves (12)15–60 cm × (4)4.8–10 mm, keeled to plicate, rigid, slightly scabrid on the edges and apical parts; sheaths brown to reddish-brown; ligule 1.5–10.5 mm, obtuse or acute; anteligule edge concave to convex. Inflorescence (7)11–43 cm, lowest internode (3)5–18.5 cm and second one (0.2)2–12 cm. Lowest bract 5.5–35 cm × 2–7.5 mm, shorter or longer than the inflorescence; sheath 1.8–7(8) cm long, the inner side brown, reddish-brown or purplish. Spikes 3–9, subhomomorphic to subheteromorphic (rarely heteromorphic), generally all spikes gynecandrous, with the male part increasingly longer as going upwards in the stem, sometimes lowest spikes entirely female (more rarely 1 male terminal and the rest female); terminal spike 3.2–6.5 cm × (5)7–12 mm, clavate (rarely terete), sessile or with a peduncle up to 3.3 cm; lateral spikes (1)2–6 cm × 7–12 mm, dense-flowered, clavate to widely terete or ellipsoid, solitary or in pairs, exceptionally with a few short branches at the base of the largest spikes, peduncle up to 7.5(12.5) cm. Male glumes (4.5)5.4–7.5(9) × (1)1.1–2.2(2.4) mm, oblong-elliptic to oblong-obovate, dark brown to dark reddish-brown with straw or green coloured midrib, mucronate or acuminate, mucro or acumen up to 1.5 mm, rarely obtuse. Female glumes 3.4–6(7) × (1.1)1.3–2.6 mm, widely oblong-elliptic, dark brown, reddish-brown or purplish-red, with wide and green or straw coloured midrib, mucro or acumen up to 1(1.5) mm, rarely, obtuse. Utricles (3.7)4–6(6.5) × 1.2–2.2(2.5) mm, ellipsoid-trigonous, straight, tetra-nerved to plurinerved, tapered to beak, greyish-green with reddish or purplish speckles; beak 1.1–1.6(1.8) mm, deeply bifid, with ± similar dorsal and ventral sinus, 0.4–0.6 mm depth, aculeolate (very rarely smooth). Achenes 2.5–3(3.2) × 1.1–1.6(1.9) mm, trigonous, oblong-elliptic to oblong-obovoid. 2n = 70. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Tent. Fl. Abyss. 2: 513. 1850 to Tent. Fl. Abyss. 2: 513 (1850), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (4 publications) 
To European Nucleotide Archive, ENA (Carex petitiana) 
To GenBank (29 nucleotides; 4 proteins) 
To International Plant Names Index (IPNI) 
To IUCN Red List (Least Concern) 
To Plants of the World Online 
To Royal Botanic Gardens, Kew (Carex petitiana K000363462 isotype 1) 
To Royal Botanic Gardens, Kew (Carex petitiana K000363463 type 1) 
To Royal Botanic Gardens, Kew (Carex petitiana K000363582 isotype 1) 
To Royal Botanic Gardens, Kew (Carex petitiana K000363591 holotype 1) 
To Royal Botanic Gardens, Kew (Carex petitiana K000363605 holotype 1) 
To Royal Botanic Gardens, Kew (Carex petitiana K000363649 type 1) 
From editor or global species database
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