Cyperaceae taxon details
Rhynchospora torreyana A.Gray
1681287 (urn:lsid:marinespecies.org:taxname:1681287)
accepted
Species
Phaeocephalum torreyanum (A.Gray) House · unaccepted
Rhynchospora micrantha A.Gray · unaccepted
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): 197 [details]
page(s): 197 [details]
Description Plants perennial, cespitose, 50–100 cm; rhizomes absent. Culms ascending-excurved, leafy, ± terete, slender. Leaves...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 197 1835 to Ann. Lyceum Nat. Hist....
Description Plants perennial, cespitose, 50–100 cm; rhizomes absent. Culms ascending-excurved, leafy, ± terete, slender. Leaves ascending, overtopped by culm; blades narrowly linear, proximally flat, 2–3 mm wide, apex trigonous, tapering. Inflorescences: spikelet clusters (1–)2–3, widely spaced, open to dense, broadly to narrowly turbinate, branches ascending to slightly spreading, capillary; leafy bracts setaceous-tipped, overtopping all but distal clusters. Spikelets light red-brown, ovoid, 3.5–5 mm, apex acuminate; fertile scales ovate, 2.5–3.5 mm, apex acute, midrib excurrent as cusp or mucro. Flowers: perianth bristles 6, reaching at most 2/3 length of fruit body, antrorsely barbellate. Fruits 1–4(–5) per spikelet, 2 mm; body brown, strongly compressed, obovoid-ellipsoid, 1.4–1.6 × 1–1.2 mm, margins flowing to tubercle; surfaces finely transversely rugose, intervals with narrow vertical alveolae; tubercle flat, low-triangular, 0.2–0.3(–0.5) mm. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 197 1835 to Ann. Lyceum Nat. Hist....
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 197 1835 to Ann. Lyceum Nat. Hist. New York 3: 197 (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 torreyana A.Gray. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1681287 on 2025-09-14
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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): 197 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 197 [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
From editor or global species database
Description Plants perennial, cespitose, 50–100 cm; rhizomes absent. Culms ascending-excurved, leafy, ± terete, slender. Leaves ascending, overtopped by culm; blades narrowly linear, proximally flat, 2–3 mm wide, apex trigonous, tapering. Inflorescences: spikelet clusters (1–)2–3, widely spaced, open to dense, broadly to narrowly turbinate, branches ascending to slightly spreading, capillary; leafy bracts setaceous-tipped, overtopping all but distal clusters. Spikelets light red-brown, ovoid, 3.5–5 mm, apex acuminate; fertile scales ovate, 2.5–3.5 mm, apex acute, midrib excurrent as cusp or mucro. Flowers: perianth bristles 6, reaching at most 2/3 length of fruit body, antrorsely barbellate. Fruits 1–4(–5) per spikelet, 2 mm; body brown, strongly compressed, obovoid-ellipsoid, 1.4–1.6 × 1–1.2 mm, margins flowing to tubercle; surfaces finely transversely rugose, intervals with narrow vertical alveolae; tubercle flat, low-triangular, 0.2–0.3(–0.5) mm. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 197 1835 to Ann. Lyceum Nat. Hist. New York 3: 197 (1835), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (31 publications)
To Biodiversity Heritage Library (42 publications) (from synonym Rhynchospora micrantha A.Gray)
To International Plant Names Index (IPNI) (from synonym Rhynchospora micrantha A.Gray)
To International Plant Names Index (IPNI) (from synonym Phaeocephalum torreyanum (A.Gray) House)
To International Plant Names Index (IPNI)
To New York Botanical Garden Steere Herbarium (Rhynchospora_torreyana_NY51435_type_1)
To Plants of the World Online (from synonym Phaeocephalum torreyanum (A.Gray) House)
To Plants of the World Online
To Plants of the World Online (from synonym Rhynchospora micrantha A.Gray)
To Biodiversity Heritage Library (42 publications) (from synonym Rhynchospora micrantha A.Gray)
To International Plant Names Index (IPNI) (from synonym Rhynchospora micrantha A.Gray)
To International Plant Names Index (IPNI) (from synonym Phaeocephalum torreyanum (A.Gray) House)
To International Plant Names Index (IPNI)
To New York Botanical Garden Steere Herbarium (Rhynchospora_torreyana_NY51435_type_1)
To Plants of the World Online (from synonym Phaeocephalum torreyanum (A.Gray) House)
To Plants of the World Online
To Plants of the World Online (from synonym Rhynchospora micrantha A.Gray)
From editor or global species database
Hosted externally
