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Cyperaceae taxon details

Carex floridana Schwein.

1677736  (urn:lsid:marinespecies.org:taxname:1677736)

accepted
Species
terrestrial
Schweinitz, L. D. (1824). An Analytical Table to facilitate the determination of the hitherto observed North American species of the genus Carex. <em>Annals of the Lyceum of Natural History of New York.</em> 1: 62-71., available online at https://www.biodiversitylibrary.org/page/15913239#page/72/mode/1up
page(s): 66 [details] 
Description Plants densely cespitose; rhizomes horizontally spreading to ascending, reddish brown, 17–75 mm, stout. Culms 5–17 cm,...  
Description Plants densely cespitose; rhizomes horizontally spreading to ascending, reddish brown, 17–75 mm, stout. Culms 5–17 cm, scabrous distally; bases (remnants of old leaves) weakly fibrous. Leaf blades green, occasionally glaucous, exceeding culms, 1.7–3 mm wide, herbaceous, papillose to scabrous abaxially, papillose to scabrous adaxially. Inflorescences with both staminate and pistillate spikes; peduncles of staminate spikes 0.3–1.2 mm; proximal cauline bracts leakflike, shorter than inflorescences. Spikes: proximal pistillate spikes 2–3 (basal spikes 0); cauline spikes overlapping, proximal 2 separated by less than 7 mm, with 4–8 perigynia; staminate spikes (3–)6.1–9.3 × 1.1–1.7 mm. Scales: pistillate scales pale to dark reddish brown, with narrow white margins, ovate to lanceolate, 2.7–4.2 × 1.2–2 mm, shorter than to equaling perigynia, apex acute to acuminate or short-aristate; staminate scales lanceolate, 2.8–4 × 1.2–1.8 mm, apex obtuse or acute to acuminate. Anthers 1.8–2 mm. Perigynia pale green, veinless, ellipsoid, 3–4.1 × 0.9–1.4 mm; beak straight, pale green, 0.6–0.9 mm, weakly ciliate-serrulate, apical teeth 0.1–0.3 mm. Stigmas 2(–3). Achenes brown, ellipsoid, biconvex, flattened-trigonous, or evenly trigonous with convex sides (all three types may occur on the same plant), 1.5–2 × 0.9–1.3 mm. [details]

Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Schwein. to Schwein. & Torr., information provided by Alan...  
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Schwein. to Schwein. & Torr., 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. Carex floridana Schwein.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677736 on 2025-09-14
Date
action
by
2023-09-06 07:28:28Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-03-11 11:19:03Z
changed

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Nomenclature

original description Schweinitz, L. D. (1824). An Analytical Table to facilitate the determination of the hitherto observed North American species of the genus Carex. <em>Annals of the Lyceum of Natural History of New York.</em> 1: 62-71., available online at https://www.biodiversitylibrary.org/page/15913239#page/72/mode/1up
page(s): 66 [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 P 00312893, geounit United States [details]
From editor or global species database
Description Plants densely cespitose; rhizomes horizontally spreading to ascending, reddish brown, 17–75 mm, stout. Culms 5–17 cm, scabrous distally; bases (remnants of old leaves) weakly fibrous. Leaf blades green, occasionally glaucous, exceeding culms, 1.7–3 mm wide, herbaceous, papillose to scabrous abaxially, papillose to scabrous adaxially. Inflorescences with both staminate and pistillate spikes; peduncles of staminate spikes 0.3–1.2 mm; proximal cauline bracts leakflike, shorter than inflorescences. Spikes: proximal pistillate spikes 2–3 (basal spikes 0); cauline spikes overlapping, proximal 2 separated by less than 7 mm, with 4–8 perigynia; staminate spikes (3–)6.1–9.3 × 1.1–1.7 mm. Scales: pistillate scales pale to dark reddish brown, with narrow white margins, ovate to lanceolate, 2.7–4.2 × 1.2–2 mm, shorter than to equaling perigynia, apex acute to acuminate or short-aristate; staminate scales lanceolate, 2.8–4 × 1.2–1.8 mm, apex obtuse or acute to acuminate. Anthers 1.8–2 mm. Perigynia pale green, veinless, ellipsoid, 3–4.1 × 0.9–1.4 mm; beak straight, pale green, 0.6–0.9 mm, weakly ciliate-serrulate, apical teeth 0.1–0.3 mm. Stigmas 2(–3). Achenes brown, ellipsoid, biconvex, flattened-trigonous, or evenly trigonous with convex sides (all three types may occur on the same plant), 1.5–2 × 0.9–1.3 mm. [details]

Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Schwein. to Schwein. & Torr., information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List [details]