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Cyperaceae taxon details

Carex retroflexa Muhl. ex Willd.

1676959  (urn:lsid:marinespecies.org:taxname:1676959)

  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. RoseaClade (Section)
  15. Carex retroflexa (Species)
accepted
Species

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terrestrial
(1805). Sp. Pl., ed. 4 [Willdenow] 4(1), available online at https://www.biodiversitylibrary.org/page/670960#page/1/mode/1up
page(s): 235 [details] 
Description Plants without conspicuous rhizomes. Culms 10–75 cm, 1.3–1.8 mm wide basally, 0.5–0.8 mm wide distally. Leaves:...  
Description Plants without conspicuous rhizomes. Culms 10–75 cm, 1.3–1.8 mm wide basally, 0.5–0.8 mm wide distally. Leaves: sheaths tight, green, fronts hyaline; ligules less than 2 mm, wider than long; widest leaf blades 1.4–3 mm wide. Inflorescences with 3–9 spikes, 1–4 cm × 5–9 mm; proximal internodes 1–3 times as long as proximal spikes; proximal bracts to 6 cm; spikes with 3–10 spreading perigynia. Pistillate scales hyaline with green midvein, ovate, 2–3 × 1.4–1.6 mm, 3/4 length to equaling perigynia, apex acute to acuminate. Anthers 1.5–2.3 mm. Perigynia green to pale yellow, faces weakly veined, 2.5–3.2 × 1.2–1.8 mm, base of body spongy, thickened and longitudinally striate adaxially, spongy region 0.8–1.5 mm, margins entire, serrulate distally; beak 0.7–1 mm, apical teeth 0.1–0.3 mm. Stigmas straight or slightly twisted, 0.05 mm wide. Achenes ovate-circular, 1.3–1.6 × 1.3–1.5 mm. 2n = 40. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Sp. Pl. 4: 235 1805 to Sp. Pl., ed. 4 , 4: 235 (1805), information...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Sp. Pl. 4: 235 1805 to Sp. Pl., ed. 4 , 4: 235 (1805), 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 retroflexa Muhl. ex Willd.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676959 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 (1805). Sp. Pl., ed. 4 [Willdenow] 4(1), available online at https://www.biodiversitylibrary.org/page/670960#page/1/mode/1up
page(s): 235 [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 without conspicuous rhizomes. Culms 10–75 cm, 1.3–1.8 mm wide basally, 0.5–0.8 mm wide distally. Leaves: sheaths tight, green, fronts hyaline; ligules less than 2 mm, wider than long; widest leaf blades 1.4–3 mm wide. Inflorescences with 3–9 spikes, 1–4 cm × 5–9 mm; proximal internodes 1–3 times as long as proximal spikes; proximal bracts to 6 cm; spikes with 3–10 spreading perigynia. Pistillate scales hyaline with green midvein, ovate, 2–3 × 1.4–1.6 mm, 3/4 length to equaling perigynia, apex acute to acuminate. Anthers 1.5–2.3 mm. Perigynia green to pale yellow, faces weakly veined, 2.5–3.2 × 1.2–1.8 mm, base of body spongy, thickened and longitudinally striate adaxially, spongy region 0.8–1.5 mm, margins entire, serrulate distally; beak 0.7–1 mm, apical teeth 0.1–0.3 mm. Stigmas straight or slightly twisted, 0.05 mm wide. Achenes ovate-circular, 1.3–1.6 × 1.3–1.5 mm. 2n = 40. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Sp. Pl. 4: 235 1805 to Sp. Pl., ed. 4 , 4: 235 (1805), 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 Diemisa retroflexa (Muhl. ex Willd.) Raf.)
To Biodiversity Heritage Library (1 publication) (from synonym Vignea retroflexa (Muhl. ex Willd.) Rchb.)
To Biodiversity Heritage Library (188 publications) 
To European Nucleotide Archive, ENA (Carex retroflexa) 
To GenBank (11 nucleotides; 2 proteins) 
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Diemisa retroflexa (Muhl. ex Willd.) Raf.)
To International Plant Names Index (IPNI) (from synonym Vignea retroflexa (Muhl. ex Willd.) Rchb.)
To International Plant Names Index (IPNI) (from synonym Carex rosea var. retroflexa (Muhl. ex Willd.) Torr.)
To Plants of the World Online (from synonym Carex rosea var. retroflexa (Muhl. ex Willd.) Torr.)
To Plants of the World Online 
To Plants of the World Online (from synonym Diemisa retroflexa (Muhl. ex Willd.) Raf.)
To Plants of the World Online (from synonym Vignea retroflexa (Muhl. ex Willd.) Rchb.)
To The Plant List (from synonym Carex retroflexa var. retroflexa Muhl. ex Willd.)
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