Cyperaceae taxon details
Rhynchospora macra (C.B.Clarke ex Britton) Small
1681136 (urn:lsid:marinespecies.org:taxname:1681136)
accepted
Species
terrestrial
(of Rhynchospora alba var. macra C.B.Clarke ex Britton) 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): 88 [details]
page(s): 88 [details]
Description Plants perennial, cespitose, 40–80 cm; rhizomes absent. Culms erect, trigonous, multiribbed, rather stiff. Principal...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Man. S.E. Fl. 180 1933 to Man. S.E. Fl. : 180 (1933), information...
Description Plants perennial, cespitose, 40–80 cm; rhizomes absent. Culms erect, trigonous, multiribbed, rather stiff. Principal leaves overtopped by culm; blades narrowly linear, proximally flat, (1.5–)2–3.5 mm wide, apex tapering, trigonous. Inflorescences: spikelet clusters 1–3, turbinate to hemispheric, 1.5–3 cm wide; subtending leafy bracts mostly exceeded by distal compound. Spikelets pale brown to nearly white, fusiform, 4–5(–7) mm, apex narrowly acute; fertile scales elliptic, 3.5–4 mm, apex narrowly acute, midrib excurrent as mucro. Flowers: perianth bristles (15–)18–20, reaching tubercle tip, retrorsely barbellate. Fruits 1 per spikelet, 2.5–3.2 mm; body brown with pale center, obovoid distal to short stipe, lenticular, 1.7–2.2 × 0.8–1.5, margins narrow, wirelike, flowing into tubercle edges; tubercle flat, narrowly triangular-subulate, 0.8–1 mm. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Man. S.E. Fl. 180 1933 to Man. S.E. Fl. : 180 (1933), information...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Man. S.E. Fl. 180 1933 to Man. S.E. Fl. : 180 (1933), 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 macra (C.B.Clarke ex Britton) Small. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1681136 on 2025-09-13
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2024-12-10 11:47:54Z
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Nomenclature
original description
(of Rhynchospora alba var. macra C.B.Clarke ex Britton) 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): 88 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
new combination reference Small, J. K. (1933). Manual of the Southeastern Flora. Being Descriptions of the Seed Plants Growing Naturally in Florida, Alabama, Mississippi, Eastern Louisiana, Tennessee, North Carolina, South Carolina and Georgia. , available online at https://www.biodiversitylibrary.org/page/402086#page/1/mode/1up
page(s): 180 [details]
page(s): 88 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
new combination reference Small, J. K. (1933). Manual of the Southeastern Flora. Being Descriptions of the Seed Plants Growing Naturally in Florida, Alabama, Mississippi, Eastern Louisiana, Tennessee, North Carolina, South Carolina and Georgia. , available online at https://www.biodiversitylibrary.org/page/402086#page/1/mode/1up
page(s): 180 [details]
Present Inaccurate Introduced: alien Containing type locality
Syntype (of Rhynchospora alba var. macra C.B.Clarke ex Britton) NY 00051359, geounit New Mexico [details]
From editor or global species database
Description Plants perennial, cespitose, 40–80 cm; rhizomes absent. Culms erect, trigonous, multiribbed, rather stiff. Principal leaves overtopped by culm; blades narrowly linear, proximally flat, (1.5–)2–3.5 mm wide, apex tapering, trigonous. Inflorescences: spikelet clusters 1–3, turbinate to hemispheric, 1.5–3 cm wide; subtending leafy bracts mostly exceeded by distal compound. Spikelets pale brown to nearly white, fusiform, 4–5(–7) mm, apex narrowly acute; fertile scales elliptic, 3.5–4 mm, apex narrowly acute, midrib excurrent as mucro. Flowers: perianth bristles (15–)18–20, reaching tubercle tip, retrorsely barbellate. Fruits 1 per spikelet, 2.5–3.2 mm; body brown with pale center, obovoid distal to short stipe, lenticular, 1.7–2.2 × 0.8–1.5, margins narrow, wirelike, flowing into tubercle edges; tubercle flat, narrowly triangular-subulate, 0.8–1 mm. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Man. S.E. Fl. 180 1933 to Man. S.E. Fl. : 180 (1933), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (4 publications) (from synonym Rhynchospora alba var. macra C.B.Clarke ex Britton)
To Biodiversity Heritage Library (9 publications)
To European Nucleotide Archive, ENA (Rhynchospora macra)
To GenBank (2 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Phaeocephalum album var. marcum (C.B.Clarke ex Britton) Farw.)
To International Plant Names Index (IPNI) (from synonym Triodon albus var. macer (C.B.Clarke ex Britton) Farw.)
To International Plant Names Index (IPNI) (from synonym Rhynchospora alba var. macra C.B.Clarke ex Britton)
To Plants of the World Online (from synonym Triodon albus var. macer (C.B.Clarke ex Britton) Farw.)
To Plants of the World Online
To Plants of the World Online (from synonym Rhynchospora alba var. macra C.B.Clarke ex Britton)
To Plants of the World Online (from synonym Phaeocephalum album var. marcum (C.B.Clarke ex Britton) Farw.)
To The Plant List (from synonym Phaeocephalum album var. macrum (C.B.Clarke ex Britton) Farw.)
To Biodiversity Heritage Library (9 publications)
To European Nucleotide Archive, ENA (Rhynchospora macra)
To GenBank (2 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Phaeocephalum album var. marcum (C.B.Clarke ex Britton) Farw.)
To International Plant Names Index (IPNI) (from synonym Triodon albus var. macer (C.B.Clarke ex Britton) Farw.)
To International Plant Names Index (IPNI) (from synonym Rhynchospora alba var. macra C.B.Clarke ex Britton)
To Plants of the World Online (from synonym Triodon albus var. macer (C.B.Clarke ex Britton) Farw.)
To Plants of the World Online
To Plants of the World Online (from synonym Rhynchospora alba var. macra C.B.Clarke ex Britton)
To Plants of the World Online (from synonym Phaeocephalum album var. marcum (C.B.Clarke ex Britton) Farw.)
To The Plant List (from synonym Phaeocephalum album var. macrum (C.B.Clarke ex Britton) Farw.)
