Cyperaceae taxon details
Rhynchospora oligantha A.Gray
1681170 (urn:lsid:marinespecies.org:taxname:1681170)
accepted
Species
Calyptrolepis junciformis (Steud.) Steud. · unaccepted
Cleistocalyx junciformis (Steud.) Steud. · unaccepted
Kleistrocalyx junciformis Steud. · unaccepted
Rhynchospora oligantha var. oligantha A.Gray · unaccepted
Rhynchospora oligantha var. typica Gale · unaccepted
Rhynchospora triflora M.A.Curtis · unaccepted
- Variety Rhynchospora oligantha var. breviseta Gale accepted as Rhynchospora galeana Naczi, W.M.Knapp & G.Moor
- Variety Rhynchospora oligantha var. oligantha A.Gray accepted as Rhynchospora oligantha A.Gray
- Variety Rhynchospora oligantha var. typica Gale accepted as Rhynchospora oligantha A.Gray
terrestrial
Gray, M. D. (1835). A monograph of the North American species of Rhynchospora. <em>Annals of the Lyceum of Natural History of New York.</em> 3: 190-219., available online at https://www.biodiversitylibrary.org/page/16077147#page/198/mode/1up
page(s): 212 [details]
page(s): 212 [details]
Description Plants perennial, densely cespitose, knotty based, 20–40 cm; rhizomes absent. Culms filiform, leafy at base, wiry. Leaves...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 212 1835 to Ann. Lyceum Nat. Hist....
Description Plants perennial, densely cespitose, knotty based, 20–40 cm; rhizomes absent. Culms filiform, leafy at base, wiry. Leaves ascending to erect; blades filiform, nearly terete, or channeled, sometimes compressed, nearly reaching distal inflorescence or much shorter, 0.2–0.3 mm thick, apex subulate. Inflorescences: spikelet clusters 2–6, simple or reduced to 1 spikelet, branches ascending to divaricate or reflexed; leafy bracts single per cluster, filiform, setaceous, with clusters appearing lateral to bracts. Spikelets pale red brown, ellipsoid lanceoloid, 5–6(–8) mm, apex acute to acuminate; fertile scales oblong elliptic, convex, acuminate, 3.5–5 mm, apex broadly acute, midrib forming apiculus. Flowers: perianth bristles 6, reaching to or slightly past tubercle base, increasingly plumose from middle to base. Fruits 1 per spikelet, (2.5–)2.7–3(–3.4) mm; body light brown to brown, ellipsoid obovoid, distally conspicuously necked, tumidly lenticular, 1.7–2.5 × 1.5–1.8 mm; surfaces smooth or minutely transversely rugulose; tubercle conic subulate, 0.5–0.7 mm, base flaring. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 212 1835 to Ann. Lyceum Nat. Hist....
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 212 1835 to Ann. Lyceum Nat. Hist. New York 3: 212 (1835), 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. Rhynchospora oligantha A.Gray. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1681170 on 2025-09-12
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2024-12-10 11:47:54Z
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Nomenclature
original description
Gray, M. D. (1835). A monograph of the North American species of Rhynchospora. <em>Annals of the Lyceum of Natural History of New York.</em> 3: 190-219., available online at https://www.biodiversitylibrary.org/page/16077147#page/198/mode/1up
page(s): 212 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 212 [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
Syntype K 000309390, geounit Texas [details]
From editor or global species database
Description Plants perennial, densely cespitose, knotty based, 20–40 cm; rhizomes absent. Culms filiform, leafy at base, wiry. Leaves ascending to erect; blades filiform, nearly terete, or channeled, sometimes compressed, nearly reaching distal inflorescence or much shorter, 0.2–0.3 mm thick, apex subulate. Inflorescences: spikelet clusters 2–6, simple or reduced to 1 spikelet, branches ascending to divaricate or reflexed; leafy bracts single per cluster, filiform, setaceous, with clusters appearing lateral to bracts. Spikelets pale red brown, ellipsoid lanceoloid, 5–6(–8) mm, apex acute to acuminate; fertile scales oblong elliptic, convex, acuminate, 3.5–5 mm, apex broadly acute, midrib forming apiculus. Flowers: perianth bristles 6, reaching to or slightly past tubercle base, increasingly plumose from middle to base. Fruits 1 per spikelet, (2.5–)2.7–3(–3.4) mm; body light brown to brown, ellipsoid obovoid, distally conspicuously necked, tumidly lenticular, 1.7–2.5 × 1.5–1.8 mm; surfaces smooth or minutely transversely rugulose; tubercle conic subulate, 0.5–0.7 mm, base flaring. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 212 1835 to Ann. Lyceum Nat. Hist. New York 3: 212 (1835), 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 Rhynchospora oligantha var. oligantha A.Gray)
To Biodiversity Heritage Library (2 publications) (from synonym Cleistocalyx junciformis (Steud.) Steud.)
To Biodiversity Heritage Library (39 publications) (from synonym Rhynchospora triflora M.A.Curtis)
To Biodiversity Heritage Library (69 publications)
To European Nucleotide Archive, ENA (Rhynchospora oligantha)
To GenBank (2 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Calyptrolepis junciformis (Steud.) Steud.)
To International Plant Names Index (IPNI) (from synonym Kleistrocalyx junciformis Steud.)
To International Plant Names Index (IPNI) (from synonym Cleistocalyx junciformis (Steud.) Steud.)
To International Plant Names Index (IPNI) (from synonym Rhynchospora triflora M.A.Curtis)
To International Plant Names Index (IPNI) (from synonym Rhynchospora oligantha var. typica Gale)
To Plants of the World Online (from synonym Calyptrolepis junciformis (Steud.) Steud.)
To Plants of the World Online (from synonym Kleistrocalyx junciformis Steud.)
To Plants of the World Online (from synonym Rhynchospora triflora M.A.Curtis)
To Plants of the World Online (from synonym Rhynchospora oligantha var. typica Gale)
To Plants of the World Online (from synonym Cleistocalyx junciformis (Steud.) Steud.)
To Plants of the World Online
To Royal Botanic Gardens, Kew (Rhynchospora oligantha K000309390 type 1)
To The Plant List (from synonym Rhynchospora oligantha var. oligantha A.Gray)
To Biodiversity Heritage Library (2 publications) (from synonym Cleistocalyx junciformis (Steud.) Steud.)
To Biodiversity Heritage Library (39 publications) (from synonym Rhynchospora triflora M.A.Curtis)
To Biodiversity Heritage Library (69 publications)
To European Nucleotide Archive, ENA (Rhynchospora oligantha)
To GenBank (2 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Calyptrolepis junciformis (Steud.) Steud.)
To International Plant Names Index (IPNI) (from synonym Kleistrocalyx junciformis Steud.)
To International Plant Names Index (IPNI) (from synonym Cleistocalyx junciformis (Steud.) Steud.)
To International Plant Names Index (IPNI) (from synonym Rhynchospora triflora M.A.Curtis)
To International Plant Names Index (IPNI) (from synonym Rhynchospora oligantha var. typica Gale)
To Plants of the World Online (from synonym Calyptrolepis junciformis (Steud.) Steud.)
To Plants of the World Online (from synonym Kleistrocalyx junciformis Steud.)
To Plants of the World Online (from synonym Rhynchospora triflora M.A.Curtis)
To Plants of the World Online (from synonym Rhynchospora oligantha var. typica Gale)
To Plants of the World Online (from synonym Cleistocalyx junciformis (Steud.) Steud.)
To Plants of the World Online
To Royal Botanic Gardens, Kew (Rhynchospora oligantha K000309390 type 1)
To The Plant List (from synonym Rhynchospora oligantha var. oligantha A.Gray)
From editor or global species database
Hosted externally
