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Cyperaceae taxon details

Rhynchospora rariflora (Michx.) Elliott

1681209  (urn:lsid:marinespecies.org:taxname:1681209)

  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. Rhynchosporeae (Tribe)
  12. Rhynchospora (Genus)
  13. Rhynchospora rariflora (Species)
accepted
Species
terrestrial
(of Schoenus rariflorus Michx.) Michaux, A. (1803). Cyperaceae. <em>Flora Boreali-Americana.</em> 1., available online at https://www.biodiversitylibrary.org/page/404794#page/3/mode/1up
page(s): 35 [details] 
Description Plants perennial, densely cespitose, 15–60 cm; rhizomes compact, branching, slender. Culms lax, filiform, leafy, terete,...  
Description Plants perennial, densely cespitose, 15–60 cm; rhizomes compact, branching, slender. Culms lax, filiform, leafy, terete, grooved. Leaves ascending to erect, exceeded by culm; blades lax, filiform, margins proximally deeply involute, apex trigonous, tapering. Inflorescences mostly cymose clusters, simple or compound, 1–3(–4), widely spaced, loose, narrowly to broadly turbinate; branchies capillary, ascending to spreading; leafy bracts setaceous, exceeded by or exceeding cymes. Spikelets light red brown or brown, lance ovoid to fusiform, 3–4(–4.5) mm, apex acuminate; fertile scales ovate, mostly 2–3 mm, apex rounded to acute, midrib included or short excurrent. Flowers: perianth bristles mostly 6, unequal, rarely extending past fruit midbody, an-trorsely barbellate. Fruits 1–4 per spikelet, 1.8–2 mm; body yellow brown to brown, lustrous, tumidly obovoid lenticular, 1–1.5 × 1–1.5 mm; surfaces transversely wavy rugose, intervals vertically striate with narrow alveolae; tubercle flat, triangular, 0.3–0.6 mm. [details]

Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (Michx.) Elliott to Elliott, information provided by Alan E....  
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (Michx.) Elliott to Elliott, information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List  [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Rhynchospora rariflora (Michx.) Elliott. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1681209 on 2025-09-13
Date
action
by
2023-09-06 07:35:01Z
created
Larridon, Isabel
2024-12-10 11:47:54Z
unchecked
db_admin
2025-09-09 07:37:27Z
checked
Marco Rosado, Nuria

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


Nomenclature

original description (of Schoenus rariflorus Michx.) Michaux, A. (1803). Cyperaceae. <em>Flora Boreali-Americana.</em> 1., available online at https://www.biodiversitylibrary.org/page/404794#page/3/mode/1up
page(s): 35 [details] 

basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details] 

new combination reference Elliot, S. (1816). A sketch of the botany of South Carolina and Georgia. <em>1.</em> , available online at https://www.biodiversitylibrary.org/page/10166241#page/2/mode/1up
page(s): 58 [details] 

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Isotype (of Schoenus rariflorus Michx.) P 00271524, geounit Georgia [details]
From editor or global species database
Description Plants perennial, densely cespitose, 15–60 cm; rhizomes compact, branching, slender. Culms lax, filiform, leafy, terete, grooved. Leaves ascending to erect, exceeded by culm; blades lax, filiform, margins proximally deeply involute, apex trigonous, tapering. Inflorescences mostly cymose clusters, simple or compound, 1–3(–4), widely spaced, loose, narrowly to broadly turbinate; branchies capillary, ascending to spreading; leafy bracts setaceous, exceeded by or exceeding cymes. Spikelets light red brown or brown, lance ovoid to fusiform, 3–4(–4.5) mm, apex acuminate; fertile scales ovate, mostly 2–3 mm, apex rounded to acute, midrib included or short excurrent. Flowers: perianth bristles mostly 6, unequal, rarely extending past fruit midbody, an-trorsely barbellate. Fruits 1–4 per spikelet, 1.8–2 mm; body yellow brown to brown, lustrous, tumidly obovoid lenticular, 1–1.5 × 1–1.5 mm; surfaces transversely wavy rugose, intervals vertically striate with narrow alveolae; tubercle flat, triangular, 0.3–0.6 mm. [details]

Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (Michx.) Elliott to Elliott, information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List  [details]
To Biodiversity Heritage Library (16 publications) (from synonym Haloschoenus sparsus Nees)
To Biodiversity Heritage Library (18 publications) (from synonym Dichromena micrantha Kunth)
To Biodiversity Heritage Library (3 publications) (from synonym Phaeocephalum rariflorum (Michx.) House)
To Biodiversity Heritage Library (33 publications) (from synonym Rhynchospora setacea Willd. ex Kunth)
To Biodiversity Heritage Library (40 publications) (from synonym Schoenus rariflorus Michx.)
To Biodiversity Heritage Library (42 publications) (from synonym Rhynchospora micrantha Vahl)
To Biodiversity Heritage Library (42 publications) (from synonym Rhynchospora micrantha Pursh)
To Biodiversity Heritage Library (8 publications) (from synonym Schoenus glaucus Poir.)
To Biodiversity Heritage Library (82 publications) 
To Biodiversity Heritage Library (90 publications) (from synonym Schoenus setaceus Vahl ex Kunth)
To European Nucleotide Archive, ENA (Rhynchospora rariflora) 
To GenBank (4 nucleotides; 4 proteins) 
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Pterochaete drummondii Arn. ex Boeckeler)
To International Plant Names Index (IPNI) (from synonym Dichromena micrantha Kunth)
To International Plant Names Index (IPNI) (from synonym Haloschoenus sparsus Nees)
To International Plant Names Index (IPNI) (from synonym Schoenus glaucus Poir.)
To International Plant Names Index (IPNI) (from synonym Schoenus rariflorus Michx.)
To International Plant Names Index (IPNI) (from synonym Rhynchospora micrantha Pursh)
To International Plant Names Index (IPNI) (from synonym Rhynchospora setacea Willd. ex Kunth)
To International Plant Names Index (IPNI) (from synonym Phaeocephalum rariflorum (Michx.) House)
To International Plant Names Index (IPNI) (from synonym Rhynchospora micrantha Vahl)
To International Plant Names Index (IPNI) (from synonym Schoenus setaceus Vahl ex Kunth)
To Plants of the World Online (from synonym Rhynchospora micrantha Pursh)
To Plants of the World Online (from synonym Rhynchospora setacea Willd. ex Kunth)
To Plants of the World Online (from synonym Schoenus setaceus Vahl ex Kunth)
To Plants of the World Online (from synonym Schoenus rariflorus Michx.)
To Plants of the World Online (from synonym Schoenus glaucus Poir.)
To Plants of the World Online (from synonym Phaeocephalum rariflorum (Michx.) House)
To Plants of the World Online (from synonym Rhynchospora micrantha Vahl)
To Plants of the World Online (from synonym Pterochaete drummondii Arn. ex Boeckeler)
To Plants of the World Online 
To Plants of the World Online (from synonym Dichromena micrantha Kunth)
To Plants of the World Online (from synonym Haloschoenus sparsus Nees)
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