Cyperaceae taxon details
Eleocharis microcarpa Torr.
1680481 (urn:lsid:marinespecies.org:taxname:1680481)
accepted
Species
Scirpus microcarpus (Torr.) Kuntze · unaccepted
Scirpus paracicularis C.Wright ex R.Knuth · unaccepted
terrestrial
Not documented
Description Plants usually annual, tufted, sometimes mat-forming via proliferating and arching inflorescences (stoloniferous),...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 312 1836 to Ann. Lyceum Nat. Hist....
Description Plants usually annual, tufted, sometimes mat-forming via proliferating and arching inflorescences (stoloniferous), sometimes entirely vegetative; rhizomes absent. Culms often ascending or arching, quadrangular or broadly elliptic, 2–40 cm × 0.1–0.4(–0.6) mm, soft. Leaves: distal leaf sheaths persistent or disintegrating, pale brown, green or red-brown, streaked or mottled red-brown or purple, translucent, membranous, apex narrowly acute. Spikelets: basal spikelets absent; often proliferous, ovoid to ellipsoid or lanceoloid, terete, 2–10.7 × 1–2 mm, apex acute; proximal scale empty, persistent, amplexicaulous, dissimilar to floral scales, often longer, often resembling an involucral bract, ovate to lanceolate, midrib markedly thickened and broad and often prolonged beyond lamina; subproximal scale with flower; floral scales spiraled, colorless, whitish, or pale brown, streaked or mottled red-brown or purple, midribs green and red-brown or green and purple, ovate to elliptic, 0.8–1.5 × 0.4–0.8 mm, membranous, midrib obscure to prominent. Flowers: perianth bristles present or sometimes apparently absent; stamens 3; anthers 0.15–0.35; styles 3-fid. Achenes whitish to olive or pale brown, sometimes spotted olive or red-brown, obovoid, trigonous (or subterete), angles prominent, 0.55–0.8 × 0.3–0.5 mm, apex constricted proximal to tubercle, smooth. Tubercles green or pale brown to red-brown, trigonous. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 312 1836 to Ann. Lyceum Nat. Hist....
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 312 1836 to Ann. Lyceum Nat. Hist. New York 3: 312 (1836), 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. Eleocharis microcarpa Torr.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1680481 on 2025-09-12
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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 Plants usually annual, tufted, sometimes mat-forming via proliferating and arching inflorescences (stoloniferous), sometimes entirely vegetative; rhizomes absent. Culms often ascending or arching, quadrangular or broadly elliptic, 2–40 cm × 0.1–0.4(–0.6) mm, soft. Leaves: distal leaf sheaths persistent or disintegrating, pale brown, green or red-brown, streaked or mottled red-brown or purple, translucent, membranous, apex narrowly acute. Spikelets: basal spikelets absent; often proliferous, ovoid to ellipsoid or lanceoloid, terete, 2–10.7 × 1–2 mm, apex acute; proximal scale empty, persistent, amplexicaulous, dissimilar to floral scales, often longer, often resembling an involucral bract, ovate to lanceolate, midrib markedly thickened and broad and often prolonged beyond lamina; subproximal scale with flower; floral scales spiraled, colorless, whitish, or pale brown, streaked or mottled red-brown or purple, midribs green and red-brown or green and purple, ovate to elliptic, 0.8–1.5 × 0.4–0.8 mm, membranous, midrib obscure to prominent. Flowers: perianth bristles present or sometimes apparently absent; stamens 3; anthers 0.15–0.35; styles 3-fid. Achenes whitish to olive or pale brown, sometimes spotted olive or red-brown, obovoid, trigonous (or subterete), angles prominent, 0.55–0.8 × 0.3–0.5 mm, apex constricted proximal to tubercle, smooth. Tubercles green or pale brown to red-brown, trigonous. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Ann. Lyceum Nat. Hist. New York 3: 312 1836 to Ann. Lyceum Nat. Hist. New York 3: 312 (1836), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (103 publications)
To Biodiversity Heritage Library (263 publications) (from synonym Scirpus microcarpus (Torr.) Kuntze)
To Biodiversity Heritage Library (5 publications) (from synonym Scirpus paracicularis C.Wright ex R.Knuth)
To European Nucleotide Archive, ENA (Eleocharis microcarpa)
To European Nucleotide Archive, ENA (Scirpus microcarpus) (from synonym Scirpus microcarpus (Torr.) Kuntze)
To GenBank (4 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Scirpus paracicularis C.Wright ex R.Knuth)
To International Plant Names Index (IPNI) (from synonym Scirpus microcarpus (Torr.) Kuntze)
To New York Botanical Garden Steere Herbarium (Eleocharis_microcarpa_NY3376973_holotype_1)
To Plants of the World Online
To Plants of the World Online (from synonym Scirpus microcarpus (Torr.) Kuntze)
To The Plant List (from synonym Scirpus paracicularis C.Wright ex R.Knuth)
To University of Minnesota Herbarium (Eleocharis microcarpa MIN82541 "type collection" [prob holotype] 1)
To Biodiversity Heritage Library (263 publications) (from synonym Scirpus microcarpus (Torr.) Kuntze)
To Biodiversity Heritage Library (5 publications) (from synonym Scirpus paracicularis C.Wright ex R.Knuth)
To European Nucleotide Archive, ENA (Eleocharis microcarpa)
To European Nucleotide Archive, ENA (Scirpus microcarpus) (from synonym Scirpus microcarpus (Torr.) Kuntze)
To GenBank (4 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Scirpus paracicularis C.Wright ex R.Knuth)
To International Plant Names Index (IPNI) (from synonym Scirpus microcarpus (Torr.) Kuntze)
To New York Botanical Garden Steere Herbarium (Eleocharis_microcarpa_NY3376973_holotype_1)
To Plants of the World Online
To Plants of the World Online (from synonym Scirpus microcarpus (Torr.) Kuntze)
To The Plant List (from synonym Scirpus paracicularis C.Wright ex R.Knuth)
To University of Minnesota Herbarium (Eleocharis microcarpa MIN82541 "type collection" [prob holotype] 1)
From editor or global species database
Hosted externally
![To University of Minnesota Herbarium (Eleocharis microcarpa MIN82541 "type collection" [prob holotype] 1)](https://s3.msi.umn.edu/mbaenrms3fs/images/MIN_Plants/01001/1001282_tn.jpg "To University of Minnesota Herbarium (Eleocharis microcarpa MIN82541 \"type collection\" [prob holotype] 1)")
Hosted externally
