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Cyperaceae taxon details

Carex obispoensis Stacey

To Field Museum Herbarium (Carex obispoensis Stacey F866418 isotype 1)
To Field Museum Herbarium (Carex obispoensis Stacey F866418 isotype 1)

1676618  (urn:lsid:marinespecies.org:taxname:1676618)

  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. Hymenochlaenae (Section)
  15. Carex obispoensis (Species)
accepted
Species
terrestrial
Stacey, J. W. (1936). Notes on Carex VII. <em>Leaflets of western botany.</em> 1(20): 240-242., available online at https://www.biodiversitylibrary.org/page/12868106#page/287/mode/1up
page(s): 240 [details] 
Description Plants densely cespitose. Culms dark brown to chestnut at base, surrounded by remains of previous year’s leaf bases, but...  
Description Plants densely cespitose. Culms dark brown to chestnut at base, surrounded by remains of previous year’s leaf bases, but not conspicuously fibrillose; flowering stems 60–180 cm × 2–2.5 mm, much longer than leaves at maturity, glabrous. Leaves: sheaths glabrous, ivory to brown on back, dark chestnut-hyaline on front, sometimes finely red dotted near apex; blades rigid, flat distally but often keeled or channeled near base, margins revolute, 4–8 mm wide, finely retrorse-scabrous adaxially, margins and abaxial midribs also sometimes finely scabrous. Inflorescences: peduncles of lateral spikes slender, to 10 mm, finely scabrous; peduncle of terminal spike scabrous; proximal bracts shorter than inflorescences; sheaths 9–100 mm; blades 2–3.5 mm wide. Lateral spikes 6–15, 1–3 per node; proximal spikes well separated (except those at same node), erect or arching at maturity, pistillate with 15–45 perigynia attached less than 1 mm apart, cylindric, 2.5–8 × 4–6 mm; distal spikes staminate or androgynous, erect, crowded near apex, sessile or short-pedunculate. Terminal spike staminate, often crowded with other staminate or predominantly lateral staminate spikes, 20–80 × 2.5–7 mm. Pistillate scales suffused with chestnut except for hyaline margins and green midrib, ovate to oblong, shorter than mature perigynia, apex acute, sometimes with scabrous awn to 1 mm, glabrous. Perigynia green, usually red dotted, strongly 2-ribbed, 12–20-veined, loosely enveloping achene, lance-ellipsoid, 5–8 × 1.4–2.7 mm, membranous, base with short stipe, apex tapering to beak, shortly and evenly pubescent; beak bidentate, margins serrulate. Achenes sessile, 3–4 × 1.4–2.2 mm. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Leafl. W. Bot. 1: 240 1936 to Leafl. W. Bot. 1: 240 (1936),...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Leafl. W. Bot. 1: 240 1936 to Leafl. W. Bot. 1: 240 (1936), 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 obispoensis Stacey. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1676618 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 Stacey, J. W. (1936). Notes on Carex VII. <em>Leaflets of western botany.</em> 1(20): 240-242., available online at https://www.biodiversitylibrary.org/page/12868106#page/287/mode/1up
page(s): 240 [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 
   

Isotype F 0045417, geounit United States [details]
From editor or global species database
Description Plants densely cespitose. Culms dark brown to chestnut at base, surrounded by remains of previous year’s leaf bases, but not conspicuously fibrillose; flowering stems 60–180 cm × 2–2.5 mm, much longer than leaves at maturity, glabrous. Leaves: sheaths glabrous, ivory to brown on back, dark chestnut-hyaline on front, sometimes finely red dotted near apex; blades rigid, flat distally but often keeled or channeled near base, margins revolute, 4–8 mm wide, finely retrorse-scabrous adaxially, margins and abaxial midribs also sometimes finely scabrous. Inflorescences: peduncles of lateral spikes slender, to 10 mm, finely scabrous; peduncle of terminal spike scabrous; proximal bracts shorter than inflorescences; sheaths 9–100 mm; blades 2–3.5 mm wide. Lateral spikes 6–15, 1–3 per node; proximal spikes well separated (except those at same node), erect or arching at maturity, pistillate with 15–45 perigynia attached less than 1 mm apart, cylindric, 2.5–8 × 4–6 mm; distal spikes staminate or androgynous, erect, crowded near apex, sessile or short-pedunculate. Terminal spike staminate, often crowded with other staminate or predominantly lateral staminate spikes, 20–80 × 2.5–7 mm. Pistillate scales suffused with chestnut except for hyaline margins and green midrib, ovate to oblong, shorter than mature perigynia, apex acute, sometimes with scabrous awn to 1 mm, glabrous. Perigynia green, usually red dotted, strongly 2-ribbed, 12–20-veined, loosely enveloping achene, lance-ellipsoid, 5–8 × 1.4–2.7 mm, membranous, base with short stipe, apex tapering to beak, shortly and evenly pubescent; beak bidentate, margins serrulate. Achenes sessile, 3–4 × 1.4–2.2 mm. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Leafl. W. Bot. 1: 240 1936 to Leafl. W. Bot. 1: 240 (1936), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (10 publications) 
To European Nucleotide Archive, ENA (Carex obispoensis) 
To Field Museum Herbarium (Carex obispoensis Stacey F866418 isotype 1) 
To GenBank (8 nucleotides; 1 proteins) 
To Genève Herbarium (Carex obispoensis G00191539 type 1) 
To International Plant Names Index (IPNI) 
To Plants of the World Online 
To Royal Botanic Gardens, Kew (Carex obispoensis K001079154 type 1) 
To Royal Botanic Gardens, Kew (Carex obispoensis K001079155 type 1) 
To US Herbarium (Carex obispoensis US1678188 type 1) 
From editor or global species database
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