Cyperaceae taxon details
Rhynchospora intermedia (Chapm.) Britton
1679633 (urn:lsid:marinespecies.org:taxname:1679633)
accepted
Species
Phaeocephalum intermedium (Chapm.) House · unaccepted
Rhynchospora pineticola C.B.Clarke · unaccepted
Rhynchospora plumosa var. intermedia Chapm. · unaccepted
terrestrial
(of Rhynchospora plumosa var. intermedia Chapm.) Chapman, A. W. (1860). Flora of the Southern United States; Containing Abridged Descriptions of the Flowering Plants and Ferns of Tennessee, North and South Carolina, Georgia, Alabama, Mississippi and Florida: Arranged According to the Natural System. , available online at https://www.biodiversitylibrary.org/page/7405705#page/7/mode/1up
page(s): 524 [details]
page(s): 524 [details]
Description Plants perennial, mostly densely cespitose, 20–70 cm, base deep rich red brown; rhizomes absent. Culms erect to...
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (Chapm.) Britton to Britton, information provided by Alan E....
Description Plants perennial, mostly densely cespitose, 20–70 cm, base deep rich red brown; rhizomes absent. Culms erect to ascending, leafy, stiff. Leaves shorter than scape; blades narrowly linear, (1–)2–3 mm wide, margins involute, apex trigonous, tapering. Inflorescences: clusters 1–2, if 2 then close together, dense, broadly turbinate to hemispheric or lobed globose; primary leafy bract linear, stiff, exceeding clusters. Spikelets light to dark red brown, lance ovoid, 3.5–6 mm, apex acuminate; fertile scales ovate, convex, 3–3.5(–4) mm, apex acuminate, low midrib excurrent or not. Flowers: perianth bristles 6, reaching at least to tubercle base, plumose from base to more than 1/2 length of fruit body. Fruits 1(–2) per spikelet, (2–)2.5–2.8(–3) mm; body red brown or brown, tumidly obovoid, (1.5–)2–2.2 × 1–1.7 mm; surfaces interruptedly transversely rugulose; tubercle broadly conic, 0.5–0.8(–1) mm, base broadly 2 lobed, apex often apiculate. [details]
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (Chapm.) Britton to Britton, information provided by Alan E....
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (Chapm.) Britton to Britton, 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 intermedia (Chapm.) Britton. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1679633 on 2025-09-13
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2024-12-10 11:47:54Z
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Nomenclature
original description
(of Rhynchospora plumosa var. intermedia Chapm.) Chapman, A. W. (1860). Flora of the Southern United States; Containing Abridged Descriptions of the Flowering Plants and Ferns of Tennessee, North and South Carolina, Georgia, Alabama, Mississippi and Florida: Arranged According to the Natural System. , available online at https://www.biodiversitylibrary.org/page/7405705#page/7/mode/1up
page(s): 524 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
new combination reference Britton N. L. (1892). A list of species of the genera Scirpus and Rhynchospora occurring in North America. Transactions of the New York Academy of Sciences, 11: 74-93., available online at https://www.biodiversitylibrary.org/page/12566213
page(s): 87 [details]
page(s): 524 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
new combination reference Britton N. L. (1892). A list of species of the genera Scirpus and Rhynchospora occurring in North America. Transactions of the New York Academy of Sciences, 11: 74-93., available online at https://www.biodiversitylibrary.org/page/12566213
page(s): 87 [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Description Plants perennial, mostly densely cespitose, 20–70 cm, base deep rich red brown; rhizomes absent. Culms erect to ascending, leafy, stiff. Leaves shorter than scape; blades narrowly linear, (1–)2–3 mm wide, margins involute, apex trigonous, tapering. Inflorescences: clusters 1–2, if 2 then close together, dense, broadly turbinate to hemispheric or lobed globose; primary leafy bract linear, stiff, exceeding clusters. Spikelets light to dark red brown, lance ovoid, 3.5–6 mm, apex acuminate; fertile scales ovate, convex, 3–3.5(–4) mm, apex acuminate, low midrib excurrent or not. Flowers: perianth bristles 6, reaching at least to tubercle base, plumose from base to more than 1/2 length of fruit body. Fruits 1(–2) per spikelet, (2–)2.5–2.8(–3) mm; body red brown or brown, tumidly obovoid, (1.5–)2–2.2 × 1–1.7 mm; surfaces interruptedly transversely rugulose; tubercle broadly conic, 0.5–0.8(–1) mm, base broadly 2 lobed, apex often apiculate. [details]Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (Chapm.) Britton to Britton, information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List [details]
To Biodiversity Heritage Library (1 publication) (from synonym Phaeocephalum intermedium (Chapm.) House)
To Biodiversity Heritage Library (2 publications) (from synonym Rhynchospora pineticola C.B.Clarke)
To Biodiversity Heritage Library (2 publications) (from synonym Rhynchospora plumosa var. intermedia Chapm.)
To Biodiversity Heritage Library (20 publications)
To European Nucleotide Archive, ENA (Rhynchospora intermedia)
To International Plant Names Index (IPNI) (from synonym Phaeocephalum intermedium (Chapm.) House)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Rhynchospora pineticola C.B.Clarke)
To International Plant Names Index (IPNI) (from synonym Rhynchospora plumosa var. intermedia Chapm.)
To Plants of the World Online (from synonym Rhynchospora plumosa var. intermedia Chapm.)
To Plants of the World Online
To Plants of the World Online (from synonym Phaeocephalum intermedium (Chapm.) House)
To Plants of the World Online (from synonym Rhynchospora pineticola C.B.Clarke)
To Biodiversity Heritage Library (2 publications) (from synonym Rhynchospora pineticola C.B.Clarke)
To Biodiversity Heritage Library (2 publications) (from synonym Rhynchospora plumosa var. intermedia Chapm.)
To Biodiversity Heritage Library (20 publications)
To European Nucleotide Archive, ENA (Rhynchospora intermedia)
To International Plant Names Index (IPNI) (from synonym Phaeocephalum intermedium (Chapm.) House)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Rhynchospora pineticola C.B.Clarke)
To International Plant Names Index (IPNI) (from synonym Rhynchospora plumosa var. intermedia Chapm.)
To Plants of the World Online (from synonym Rhynchospora plumosa var. intermedia Chapm.)
To Plants of the World Online
To Plants of the World Online (from synonym Phaeocephalum intermedium (Chapm.) House)
To Plants of the World Online (from synonym Rhynchospora pineticola C.B.Clarke)
