Cyperaceae taxon details
Carex seorsa Howe
1677089 (urn:lsid:marinespecies.org:taxname:1677089)
accepted
Species
Carex rosaeoides Howe · unaccepted > misspelling - incorrect original spelling
terrestrial
(1894). Rep. (Annual) Regents Univ. State New York New York State Mus. 47
page(s): 138 [details]
page(s): 138 [details]
Description Culms 15–75 cm. Leaves 2–4 per culm; sheaths with inner band hyaline, 3.5–12 cm, apex deeply concave, glabrous;...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rep. (Annual) Regents Univ. State New York New York State Mus. 48: 138...
Description Culms 15–75 cm. Leaves 2–4 per culm; sheaths with inner band hyaline, 3.5–12 cm, apex deeply concave, glabrous; ligules 1.7–7 mm, apex acute or often emarginate; blades plicate to flat, 9–50 cm × 0.8–3.9 mm, widest leaf 2.1–3.9 mm wide. Inflorescences 1.8–7 cm; spikes 4–8; lateral spikes pistillate often with few staminate flowers proximally, 2.8–10.8 mm, sessile, staminate portion (0–)1–6-flowered, (0–)0.8–4.6 mm, pistillate portion 4–25-flowered, 2–7.6 mm; basal 2 spikes 5–27 mm apart; terminal spike gynecadrous, 4.7–16.5 mm, staminate portion 3–13-flowered, 1.8–12.7 × 0.9–2.1 mm, pistillate portion 6–23-flowered, 2.8–7.3 × 4.4–6 mm. Pistillate scales ovate, 1.2–2.2 × 1–1.6 mm, apex acute. Staminate scales ovate, 1.7–3.3 × 1–1.4 mm, apex acute. Anthers 1–1.9 mm. Perigynia spreading to reflexed, green, 6–14-veined abaxially, 0–6-veined adaxially over achene, elliptic to elliptic-ovate, 1.8–2.9 × 1–1.9 mm, 1.2–2.1 times as long as wide; beak 0.2–0.6 mm, 0.09–0.33 length of body, smooth. Achenes ovate to orbiculate, 1.2–1.6 × 0.85–1.4 mm. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rep. (Annual) Regents Univ. State New York New York State Mus. 48: 138...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rep. (Annual) Regents Univ. State New York New York State Mus. 48: 138 1896 to Rep. (Annual) Regents Univ. State New York New York State Mus. 48: 138 (1896), information provided by Alan E. on email J [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex seorsa Howe. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677089 on 2025-09-12
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2024-12-10 11:47:54Z
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Nomenclature
original description
(1894). Rep. (Annual) Regents Univ. State New York New York State Mus. 47
page(s): 138 [details]
original description (of Carex rosaeoides Howe) Gordinier & Howe, Fl. Rensselaer Co., New York, available online at https://www.biodiversitylibrary.org/page/39327552#page/1/mode/1up
page(s): 33 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 138 [details]
original description (of Carex rosaeoides Howe) Gordinier & Howe, Fl. Rensselaer Co., New York, available online at https://www.biodiversitylibrary.org/page/39327552#page/1/mode/1up
page(s): 33 [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
Isotype NY 00011325, geounit New York [details]
From editor or global species database
Description Culms 15–75 cm. Leaves 2–4 per culm; sheaths with inner band hyaline, 3.5–12 cm, apex deeply concave, glabrous; ligules 1.7–7 mm, apex acute or often emarginate; blades plicate to flat, 9–50 cm × 0.8–3.9 mm, widest leaf 2.1–3.9 mm wide. Inflorescences 1.8–7 cm; spikes 4–8; lateral spikes pistillate often with few staminate flowers proximally, 2.8–10.8 mm, sessile, staminate portion (0–)1–6-flowered, (0–)0.8–4.6 mm, pistillate portion 4–25-flowered, 2–7.6 mm; basal 2 spikes 5–27 mm apart; terminal spike gynecadrous, 4.7–16.5 mm, staminate portion 3–13-flowered, 1.8–12.7 × 0.9–2.1 mm, pistillate portion 6–23-flowered, 2.8–7.3 × 4.4–6 mm. Pistillate scales ovate, 1.2–2.2 × 1–1.6 mm, apex acute. Staminate scales ovate, 1.7–3.3 × 1–1.4 mm, apex acute. Anthers 1–1.9 mm. Perigynia spreading to reflexed, green, 6–14-veined abaxially, 0–6-veined adaxially over achene, elliptic to elliptic-ovate, 1.8–2.9 × 1–1.9 mm, 1.2–2.1 times as long as wide; beak 0.2–0.6 mm, 0.09–0.33 length of body, smooth. Achenes ovate to orbiculate, 1.2–1.6 × 0.85–1.4 mm. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rep. (Annual) Regents Univ. State New York New York State Mus. 48: 138 1896 to Rep. (Annual) Regents Univ. State New York New York State Mus. 48: 138 (1896), information provided by Alan E. on email J [details]
To Biodiversity Heritage Library (17 publications) (from synonym Carex rosaeoides Howe)
To Biodiversity Heritage Library (65 publications)
To European Nucleotide Archive, ENA (Carex seorsa)
To GenBank (12 nucleotides; 3 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex rosaeoides Howe)
To Plants of the World Online
To Biodiversity Heritage Library (65 publications)
To European Nucleotide Archive, ENA (Carex seorsa)
To GenBank (12 nucleotides; 3 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex rosaeoides Howe)
To Plants of the World Online
