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Cyperaceae taxon details

Rhynchospora ciliaris (Michx.) C.Mohr

1679535  (urn:lsid:marinespecies.org:taxname:1679535)

accepted
Species
terrestrial
(of Schoenus ciliaris 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): 36 [details] 
Description Plants perennial, cespitose, 30–90 cm; rhizomes absent. Culms erect or ascending, terete to obscurely trigonous,...  
Description Plants perennial, cespitose, 30–90 cm; rhizomes absent. Culms erect or ascending, terete to obscurely trigonous, multiribbed, densely leafybased, slender, stiff, papillose to scabridpuberulent. Leaves forming strong rosette, distal widely spaced, much exceeded by scape; basal leaf blades shortlinear, flat, 4–6 mm wide, culm leaf blades narrower, longer, all ciliate, apex bluntly acute. Inflorescences terminal; spikelet cluster 1, crowded, hemispheric, often lobed, to 2 cm wide; bracts strongly ciliate distally; longer leafy bracts exceeding cluster. Spikelets dark redbrown, ovoid, 4–5(–6) mm, apex acute; fertile scales broadly ovate, 4–4.5 mm, apex blunt, sometimes apiculate or with mucro to 1 mm, midrib scabrid. Flowers: bristles 6, some vestigial, none reaching past fruit midbody, antrorsely barbellate. Fruits 1–2 per spikelet, (1.9–)2–2.5 mm; body dark brown with paler center, lenticular, broadly ellipsoid to orbicular, 1.6–2 × 1.5–1.6 mm, margins flowing to tubercle; tubercle lowtriangular, 0.5 mm, often apiculate.
 [details]

Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (Michx.) C.Mohr to C.Mohr, information provided by Alan E....  
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (Michx.) C.Mohr to C.Mohr, information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List v. [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Rhynchospora ciliaris (Michx.) C.Mohr. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1679535 on 2025-09-12
Date
action
by
2023-09-06 07:35:01Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-09-02 07:51:11Z
checked

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Nomenclature

original description (of Schoenus ciliaris 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): 36 [details] 

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

new combination reference Mohr, C. (1901). Contributions from the United States National Herbarium. <em>6.</em> , available online at https://www.biodiversitylibrary.org/page/365437
page(s): 408 [details] 

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Isotype (of Schoenus ciliaris Michx.) P 00264715, geounit Florida [details]
From editor or global species database
Description Plants perennial, cespitose, 30–90 cm; rhizomes absent. Culms erect or ascending, terete to obscurely trigonous, multiribbed, densely leafybased, slender, stiff, papillose to scabridpuberulent. Leaves forming strong rosette, distal widely spaced, much exceeded by scape; basal leaf blades shortlinear, flat, 4–6 mm wide, culm leaf blades narrower, longer, all ciliate, apex bluntly acute. Inflorescences terminal; spikelet cluster 1, crowded, hemispheric, often lobed, to 2 cm wide; bracts strongly ciliate distally; longer leafy bracts exceeding cluster. Spikelets dark redbrown, ovoid, 4–5(–6) mm, apex acute; fertile scales broadly ovate, 4–4.5 mm, apex blunt, sometimes apiculate or with mucro to 1 mm, midrib scabrid. Flowers: bristles 6, some vestigial, none reaching past fruit midbody, antrorsely barbellate. Fruits 1–2 per spikelet, (1.9–)2–2.5 mm; body dark brown with paler center, lenticular, broadly ellipsoid to orbicular, 1.6–2 × 1.5–1.6 mm, margins flowing to tubercle; tubercle lowtriangular, 0.5 mm, often apiculate.
 [details]

Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (Michx.) C.Mohr to C.Mohr, information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List v. [details]