Cyperaceae taxon details
Rhynchospora mixta Britton
1681158 (urn:lsid:marinespecies.org:taxname:1681158)
accepted
Species
Phaeocephalum mixtum (Britton) House · unaccepted
Rhynchospora prolifera Small · unaccepted
terrestrial
Small, J. K. (1903). Flora of the southeastern United States; being descriptions of the seed-plants, ferns and fern-allies growing naturally in North Carolina, South Carolin, Georgia, Florida, Tennessee, Alabama, Mississippi, Arkansas, Louisiana and the Indian territory and in Oklahoma and Texas east of the one-hundredth meridian. , available online at https://www.biodiversitylibrary.org/page/376878
page(s): 197 [details]
page(s): 197 [details]
Description Plants perennial, cespitose, 80–100 cm; rhizomes stoloniferous, often elongate, slender, to 1 dm or more. Leaves exceeded...
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Britton to Britton in Small, information provided by Alan E....
Description Plants perennial, cespitose, 80–100 cm; rhizomes stoloniferous, often elongate, slender, to 1 dm or more. Leaves exceeded by culm; blades lax, linear, proximally flat, 3–5 mm wide, apex abruptly narrowed, trigonous, subulate. Inflorescences: spikelet clusters 4–6, mostly widely spaced; peduncles erect or ascending, slender; branches capillary, divaricate, or widely spreading, to small clusters of 1–few spikelets; leafy bracts mostly exceeding clusters. Spikelets lance ovoid, 3–4(–6) mm, apex acute to acuminate; fertile scales elliptic, 2.5 mm, apex acute, midrib forming mucro or awn. Flowers: perianth bristles 6, overtopping tubercle, antrorsely barbellate. Fruits mostly 2–4(–several) per spikelet, (1.5–)1.8–2(–2.1); body greenish or pale brown, broadly ellipsoid to narrowly obovoid, lenticular, 1.2–1.5 × 1–1.2 mm; surfaces transversely finely wavy-rugulose, intervals vertically striate alveolate, or alveolae isodiametric; tubercle flat, triangular-subulate, 0.5–0.6(–0.8) mm. [details]
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Britton to Britton in Small, information provided by Alan E....
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Britton to Britton in Small, 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 mixta Britton. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1681158 on 2025-09-13
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2024-12-10 11:47:54Z
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Nomenclature
original description
Small, J. K. (1903). Flora of the southeastern United States; being descriptions of the seed-plants, ferns and fern-allies growing naturally in North Carolina, South Carolin, Georgia, Florida, Tennessee, Alabama, Mississippi, Arkansas, Louisiana and the Indian territory and in Oklahoma and Texas east of the one-hundredth meridian. , available online at https://www.biodiversitylibrary.org/page/376878
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
Syntype NY 00051409, geounit Georgia [details]
From editor or global species database
Description Plants perennial, cespitose, 80–100 cm; rhizomes stoloniferous, often elongate, slender, to 1 dm or more. Leaves exceeded by culm; blades lax, linear, proximally flat, 3–5 mm wide, apex abruptly narrowed, trigonous, subulate. Inflorescences: spikelet clusters 4–6, mostly widely spaced; peduncles erect or ascending, slender; branches capillary, divaricate, or widely spreading, to small clusters of 1–few spikelets; leafy bracts mostly exceeding clusters. Spikelets lance ovoid, 3–4(–6) mm, apex acute to acuminate; fertile scales elliptic, 2.5 mm, apex acute, midrib forming mucro or awn. Flowers: perianth bristles 6, overtopping tubercle, antrorsely barbellate. Fruits mostly 2–4(–several) per spikelet, (1.5–)1.8–2(–2.1); body greenish or pale brown, broadly ellipsoid to narrowly obovoid, lenticular, 1.2–1.5 × 1–1.2 mm; surfaces transversely finely wavy-rugulose, intervals vertically striate alveolate, or alveolae isodiametric; tubercle flat, triangular-subulate, 0.5–0.6(–0.8) mm. [details]Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Britton to Britton in Small, information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List [details]
To Biodiversity Heritage Library (14 publications)
To Biodiversity Heritage Library (14 publications) (from synonym Rhynchospora prolifera Small)
To Biodiversity Heritage Library (2 publications) (from synonym Phaeocephalum mixtum (Britton) House)
To European Nucleotide Archive, ENA (Rhynchospora mixta)
To GenBank (2 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Rhynchospora prolifera Small)
To International Plant Names Index (IPNI) (from synonym Phaeocephalum mixtum (Britton) House)
To New York Botanical Garden Steere Herbarium (Rhynchospora_mixta_NY51409_type_1)
To New York Botanical Garden Steere Herbarium (Rhynchospora_prolifera_NY51422_holotype_1) (from synonym Rhynchospora prolifera Small)
To Plants of the World Online (from synonym Phaeocephalum mixtum (Britton) House)
To Plants of the World Online (from synonym Rhynchospora prolifera Small)
To Plants of the World Online
To US Herbarium (Rhynchospora prolifera US384414 type 1) (from synonym Rhynchospora prolifera Small)
To Biodiversity Heritage Library (14 publications) (from synonym Rhynchospora prolifera Small)
To Biodiversity Heritage Library (2 publications) (from synonym Phaeocephalum mixtum (Britton) House)
To European Nucleotide Archive, ENA (Rhynchospora mixta)
To GenBank (2 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Rhynchospora prolifera Small)
To International Plant Names Index (IPNI) (from synonym Phaeocephalum mixtum (Britton) House)
To New York Botanical Garden Steere Herbarium (Rhynchospora_mixta_NY51409_type_1)
To New York Botanical Garden Steere Herbarium (Rhynchospora_prolifera_NY51422_holotype_1) (from synonym Rhynchospora prolifera Small)
To Plants of the World Online (from synonym Phaeocephalum mixtum (Britton) House)
To Plants of the World Online (from synonym Rhynchospora prolifera Small)
To Plants of the World Online
To US Herbarium (Rhynchospora prolifera US384414 type 1) (from synonym Rhynchospora prolifera Small)
