Cyperaceae taxon details
Rhynchospora decurrens Chapm.
1679558 (urn:lsid:marinespecies.org:taxname:1679558)
accepted
Species
Phaeocephalum decurrens (Chapm.) House · unaccepted
terrestrial
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): 525 [details]
page(s): 525 [details]
Description Plants perennial, cespitose, to 100 cm; rhizomes sometimes produced, short, not stoloniferous. Culms lax, erect to...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. South. U.S. 525 1860 to Fl. South. U.S. : 525 (1860), information...
Description Plants perennial, cespitose, to 100 cm; rhizomes sometimes produced, short, not stoloniferous. Culms lax, erect to ascending-excurved, ± terete, leafy, slender, soft. Leaves exceeded by inflorescence; blades erect or ascending, linear, proximally flat, 2–4 mm wide, apex trigonous, subulate, tapering. Inflorescences: spikelet clusters 4–6, widely spaced, loose, broadly to narrowly turbinate, paniculate, branches capillary, ultimate branches with 1 or 2 spikelets; leafy bracts exceeding proximal clusters, setaceous. Spikelets solitary or in 2s, brown, ovoid, 2.5–3.5 mm; fertile scales ovate, 1.5–2.2 mm, apex acute, apiculate. Flowers: perianth bristles 6, reaching tubercle base or slightly beyond, antrorsely barbellate. Fruits 2–3 per spikelet, 1.5–1.6(–1.8) mm; body brown or greenish, obovoid, lenticular, 1.1–1.2(–1.3) × 0.7–1 mm, margins narrow, distinct, sharp, flowing to tubercle; surfaces finely transversely wavyrugulose, intervals of fine, nearly isodiametric or vertical-rectangular pitlike alveolae; tubercle lowtriangular, entire, 0.3–0.4 mm. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. South. U.S. 525 1860 to Fl. South. U.S. : 525 (1860), information...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. South. U.S. 525 1860 to Fl. South. U.S. : 525 (1860), 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 decurrens Chapm.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1679558 on 2025-09-11
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2024-12-10 11:47:54Z
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Nomenclature
original description
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): 525 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 525 [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, to 100 cm; rhizomes sometimes produced, short, not stoloniferous. Culms lax, erect to ascending-excurved, ± terete, leafy, slender, soft. Leaves exceeded by inflorescence; blades erect or ascending, linear, proximally flat, 2–4 mm wide, apex trigonous, subulate, tapering. Inflorescences: spikelet clusters 4–6, widely spaced, loose, broadly to narrowly turbinate, paniculate, branches capillary, ultimate branches with 1 or 2 spikelets; leafy bracts exceeding proximal clusters, setaceous. Spikelets solitary or in 2s, brown, ovoid, 2.5–3.5 mm; fertile scales ovate, 1.5–2.2 mm, apex acute, apiculate. Flowers: perianth bristles 6, reaching tubercle base or slightly beyond, antrorsely barbellate. Fruits 2–3 per spikelet, 1.5–1.6(–1.8) mm; body brown or greenish, obovoid, lenticular, 1.1–1.2(–1.3) × 0.7–1 mm, margins narrow, distinct, sharp, flowing to tubercle; surfaces finely transversely wavyrugulose, intervals of fine, nearly isodiametric or vertical-rectangular pitlike alveolae; tubercle lowtriangular, entire, 0.3–0.4 mm. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Fl. South. U.S. 525 1860 to Fl. South. U.S. : 525 (1860), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (16 publications)
To Biodiversity Heritage Library (2 publications) (from synonym Phaeocephalum decurrens (Chapm.) House)
To European Nucleotide Archive, ENA (Rhynchospora decurrens)
To GenBank (2 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Phaeocephalum decurrens (Chapm.) House)
To Plants of the World Online (from synonym Phaeocephalum decurrens (Chapm.) House)
To Plants of the World Online
To Biodiversity Heritage Library (2 publications) (from synonym Phaeocephalum decurrens (Chapm.) House)
To European Nucleotide Archive, ENA (Rhynchospora decurrens)
To GenBank (2 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Phaeocephalum decurrens (Chapm.) House)
To Plants of the World Online (from synonym Phaeocephalum decurrens (Chapm.) House)
To Plants of the World Online
