Cyperaceae taxon details
Eleocharis obtusa (Willd.) Schult.
1680515 (urn:lsid:marinespecies.org:taxname:1680515)
accepted
Species
Eleocharis obtusa var. gigantea Fernald · unaccepted
Eleocharis obtusa var. jejuna Fernald · unaccepted
Eleocharis obtusa var. obtusa (Willd.) Schult. · unaccepted
Eleocharis obtusa var. peasei Svenson · unaccepted
Scirpus obtusus Willd. · unaccepted
Trichophyllum obtusum (Willd.) House · unaccepted
- Forma Eleocharis obtusa f. detonsa (A.Gray) C.F.Reed accepted as Eleocharis engelmannii Steud.
- Variety Eleocharis obtusa var. detonsa (A.Gray) Drapalik & Mohlenbr. accepted as Eleocharis engelmannii Steud.
- Variety Eleocharis obtusa var. ellipsoidalis Fernald ex Svenson accepted as Eleocharis obtusa (Willd.) Schult.
- Variety Eleocharis obtusa var. engelmannii (Steud.) Gilly accepted as Eleocharis engelmannii Steud.
- Variety Eleocharis obtusa var. gigantea Fernald accepted as Eleocharis obtusa (Willd.) Schult.
- Variety Eleocharis obtusa var. jejuna Fernald accepted as Eleocharis obtusa (Willd.) Schult.
- Variety Eleocharis obtusa var. lanceolata (Fernald) Gilly accepted as Eleocharis lanceolata Fernald
- Variety Eleocharis obtusa var. obtusa (Willd.) Schult. accepted as Eleocharis obtusa (Willd.) Schult.
- Variety Eleocharis obtusa var. ovata (Roth) Drapalik & Mohlenbr. accepted as Eleocharis ovata (Roth) Roem. & Schult.
- Variety Eleocharis obtusa var. peasei Svenson accepted as Eleocharis obtusa (Willd.) Schult.
terrestrial
Not documented
Description Culms 3–50(–90) cm × 0.2–2 mm. Leaves: apex of distal leaf sheath obtuse to acute, tooth to 0.3 mm. Spikelets...
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Mant. 2: 89 1824 to Mant. 2 (Schultes) 89. 1824 [Jan-Apr 1824] ,...
Description Culms 3–50(–90) cm × 0.2–2 mm. Leaves: apex of distal leaf sheath obtuse to acute, tooth to 0.3 mm. Spikelets broadly ovoid (to ellipsoid or lanceoloid), apex rounded (to acute), (2–)5–13 × (2–)3–4 mm; floral scales 15–150+, 8–20 per mm of rachilla, orange-brown (to stramineous), elliptic, 1.5–2.5 × 1–1.5 mm, midribs seldom keeled, apex broadly rounded. Flowers: perianth bristles (5–)6–7, rarely 0, brown, stout, slightly to usually greatly exceeding tubercle; stamens usually 3; anthers brown to yellow, 0.3–0.6 mm; styles usually 3-fid and 2-fid in same spikelet. Achenes 0.9–1.2(–1.3) × 0.7–0.9 mm. Tubercles deltoid 0.35–0.5 × (0.4–)0.5–0.8 mm, 1/3–2/3 as high as wide, 1/3–1/2 as high and 2/3–9/10 as wide as achene. 2n = 10. [details]
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Mant. 2: 89 1824 to Mant. 2 (Schultes) 89. 1824 [Jan-Apr 1824] ,...
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Mant. 2: 89 1824 to Mant. 2 (Schultes) 89. 1824 [Jan-Apr 1824] , information provided by Alan E. on email Oct. 12 2020 More details could be found in [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Eleocharis obtusa (Willd.) Schult.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1680515 on 2025-09-11
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Attribution 4.0 License
Nomenclature
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 Culms 3–50(–90) cm × 0.2–2 mm. Leaves: apex of distal leaf sheath obtuse to acute, tooth to 0.3 mm. Spikelets broadly ovoid (to ellipsoid or lanceoloid), apex rounded (to acute), (2–)5–13 × (2–)3–4 mm; floral scales 15–150+, 8–20 per mm of rachilla, orange-brown (to stramineous), elliptic, 1.5–2.5 × 1–1.5 mm, midribs seldom keeled, apex broadly rounded. Flowers: perianth bristles (5–)6–7, rarely 0, brown, stout, slightly to usually greatly exceeding tubercle; stamens usually 3; anthers brown to yellow, 0.3–0.6 mm; styles usually 3-fid and 2-fid in same spikelet. Achenes 0.9–1.2(–1.3) × 0.7–0.9 mm. Tubercles deltoid 0.35–0.5 × (0.4–)0.5–0.8 mm, 1/3–2/3 as high as wide, 1/3–1/2 as high and 2/3–9/10 as wide as achene. 2n = 10. [details]Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Mant. 2: 89 1824 to Mant. 2 (Schultes) 89. 1824 [Jan-Apr 1824] , information provided by Alan E. on email Oct. 12 2020 More details could be found in [details]
To Biodiversity Heritage Library (2 publications) (from synonym Eleocharis obtusa var. obtusa (Willd.) Schult.)
To Biodiversity Heritage Library (3 publications) (from synonym Trichophyllum obtusum (Willd.) House)
To Biodiversity Heritage Library (375 publications)
To Biodiversity Heritage Library (65 publications) (from synonym Scirpus obtusus Willd.)
To European Nucleotide Archive, ENA (Eleocharis obtusa)
To GenBank (21 nucleotides; 13 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Scirpus obtusus Willd.)
To International Plant Names Index (IPNI) (from synonym Trichophyllum obtusum (Willd.) House)
To International Plant Names Index (IPNI) (from synonym Eleocharis obtusa var. ellipsoidalis Fernald ex Svenson)
To International Plant Names Index (IPNI) (from synonym Eleocharis obtusa var. gigantea Fernald)
To International Plant Names Index (IPNI) (from synonym Eleocharis obtusa var. jejuna Fernald)
To International Plant Names Index (IPNI) (from synonym Eleocharis obtusa var. peasei Svenson)
To IUCN Red List (Least Concern)
To Plants of the World Online (from synonym Scirpus obtusus Willd.)
To Plants of the World Online (from synonym Trichophyllum obtusum (Willd.) House)
To Plants of the World Online
To Plants of the World Online (from synonym Eleocharis obtusa var. jejuna Fernald)
To Plants of the World Online (from synonym Eleocharis obtusa var. gigantea Fernald)
To Plants of the World Online (from synonym Eleocharis obtusa var. ellipsoidalis Fernald ex Svenson)
To Plants of the World Online (from synonym Eleocharis obtusa var. peasei Svenson)
To The Plant List (from synonym Eleocharis obtusa var. obtusa (Willd.) Schult.)
To Biodiversity Heritage Library (3 publications) (from synonym Trichophyllum obtusum (Willd.) House)
To Biodiversity Heritage Library (375 publications)
To Biodiversity Heritage Library (65 publications) (from synonym Scirpus obtusus Willd.)
To European Nucleotide Archive, ENA (Eleocharis obtusa)
To GenBank (21 nucleotides; 13 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Scirpus obtusus Willd.)
To International Plant Names Index (IPNI) (from synonym Trichophyllum obtusum (Willd.) House)
To International Plant Names Index (IPNI) (from synonym Eleocharis obtusa var. ellipsoidalis Fernald ex Svenson)
To International Plant Names Index (IPNI) (from synonym Eleocharis obtusa var. gigantea Fernald)
To International Plant Names Index (IPNI) (from synonym Eleocharis obtusa var. jejuna Fernald)
To International Plant Names Index (IPNI) (from synonym Eleocharis obtusa var. peasei Svenson)
To IUCN Red List (Least Concern)
To Plants of the World Online (from synonym Scirpus obtusus Willd.)
To Plants of the World Online (from synonym Trichophyllum obtusum (Willd.) House)
To Plants of the World Online
To Plants of the World Online (from synonym Eleocharis obtusa var. jejuna Fernald)
To Plants of the World Online (from synonym Eleocharis obtusa var. gigantea Fernald)
To Plants of the World Online (from synonym Eleocharis obtusa var. ellipsoidalis Fernald ex Svenson)
To Plants of the World Online (from synonym Eleocharis obtusa var. peasei Svenson)
To The Plant List (from synonym Eleocharis obtusa var. obtusa (Willd.) Schult.)
