Cyperaceae taxon details
Carex vexans F.J.Herm.
1677358 (urn:lsid:marinespecies.org:taxname:1677358)
accepted
Species
terrestrial
Hermann, F. J. (1955). Two new Carices from Southeastern United States. <em>Rhodora.</em> 57: 156-160., available online at https://www.biodiversitylibrary.org/page/625596#page/168/mode/1up
page(s): 156 [details]
page(s): 156 [details]
Holotype US 00087312, geounit Florida
Holotype US 00087312, geounit Florida [details]
Description Plants cespitose; rhizomes appearing elongate in old clumps. Culms 25–80 cm; vegetative culms few, inconspicuous, usually...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rhodora 57: 156 1955 to Rhodora 57: 156 (1955), information provided...
Description Plants cespitose; rhizomes appearing elongate in old clumps. Culms 25–80 cm; vegetative culms few, inconspicuous, usually fewer than 15 leaves, not strikingly 3-ranked. Leaves: sheaths conspicuously green-veined nearly to collar, narrow hyaline band or sharp Y-shaped region at collar, adaxially firm, summits U-shaped, sheaths sometimes finely papillose; distal ligules 2.4–5.6 mm; blades 2–5 per fertile culm, 10–25 cm × 2–5 mm. Inflorescences dense to open, green or brown, 1.5–4 cm × 10–20 mm; proximal internode 2–12 mm; 2d internode 3–10 mm; proximal bracts scalelike, with bristle tips shorter than inflorescences. Spikes 3–6, distant, distinct, ellipsoid to ovoid-globose, 8–20 × 6–10 mm, base rounded or short-acute, apex broadly obtuse to rounded. Pistillate scales white-hyaline or brown with pale brown or green 1-veined midstripe, lanceolate, 3.3–4 mm, as long as and narrower than perignyia, apex acute or obtuse. Perigynia 15–80 in larger spikes, spreading, light to dark brown, inconspicuously or shortly veined on each face, broadly elliptic or orbiculate to sharply obovate, flat except over achene, 4–6.1 × 3–4.4 mm, 0.45–0.6 mm thick, sometimes nearly leathery, base rounded, margin flat, including wing 0.7–1.5 mm wide, smooth; beak spreading, light brown at tip, flat, 0.7–1.6(–1.8) mm, 1/3 length of body, ciliate-serrulate, abaxial suture with hyaline, pale brown margin, distance from beak tip to achene 2–3 mm. Achenes oblong, 1.5–2 × 0.9–1.2 mm, 0.3–0.5 mm thick. n = 33+III. 2n = 68, 70. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rhodora 57: 156 1955 to Rhodora 57: 156 (1955), information provided...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rhodora 57: 156 1955 to Rhodora 57: 156 (1955), information provided by Alan E. on email Jun. 07 2021 More details could be found in The P [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex vexans F.J.Herm.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677358 on 2025-09-14
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2024-12-10 11:47:54Z
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Nomenclature
original description
Hermann, F. J. (1955). Two new Carices from Southeastern United States. <em>Rhodora.</em> 57: 156-160., available online at https://www.biodiversitylibrary.org/page/625596#page/168/mode/1up
page(s): 156 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 156 [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
Holotype US 00087312, geounit Florida [details]
From editor or global species database
Description Plants cespitose; rhizomes appearing elongate in old clumps. Culms 25–80 cm; vegetative culms few, inconspicuous, usually fewer than 15 leaves, not strikingly 3-ranked. Leaves: sheaths conspicuously green-veined nearly to collar, narrow hyaline band or sharp Y-shaped region at collar, adaxially firm, summits U-shaped, sheaths sometimes finely papillose; distal ligules 2.4–5.6 mm; blades 2–5 per fertile culm, 10–25 cm × 2–5 mm. Inflorescences dense to open, green or brown, 1.5–4 cm × 10–20 mm; proximal internode 2–12 mm; 2d internode 3–10 mm; proximal bracts scalelike, with bristle tips shorter than inflorescences. Spikes 3–6, distant, distinct, ellipsoid to ovoid-globose, 8–20 × 6–10 mm, base rounded or short-acute, apex broadly obtuse to rounded. Pistillate scales white-hyaline or brown with pale brown or green 1-veined midstripe, lanceolate, 3.3–4 mm, as long as and narrower than perignyia, apex acute or obtuse. Perigynia 15–80 in larger spikes, spreading, light to dark brown, inconspicuously or shortly veined on each face, broadly elliptic or orbiculate to sharply obovate, flat except over achene, 4–6.1 × 3–4.4 mm, 0.45–0.6 mm thick, sometimes nearly leathery, base rounded, margin flat, including wing 0.7–1.5 mm wide, smooth; beak spreading, light brown at tip, flat, 0.7–1.6(–1.8) mm, 1/3 length of body, ciliate-serrulate, abaxial suture with hyaline, pale brown margin, distance from beak tip to achene 2–3 mm. Achenes oblong, 1.5–2 × 0.9–1.2 mm, 0.3–0.5 mm thick. n = 33+III. 2n = 68, 70. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Rhodora 57: 156 1955 to Rhodora 57: 156 (1955), information provided by Alan E. on email Jun. 07 2021 More details could be found in The P [details]
To Biodiversity Heritage Library (4 publications)
To European Nucleotide Archive, ENA (Carex vexans)
To GenBank (18 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To Plants of the World Online
To US Herbarium (Carex vexans US2231425 type 1)
To European Nucleotide Archive, ENA (Carex vexans)
To GenBank (18 nucleotides; 2 proteins)
To International Plant Names Index (IPNI)
To Plants of the World Online
To US Herbarium (Carex vexans US2231425 type 1)
From editor or global species database
Hosted externally
