Cyperaceae taxon details
Carex ozarkana P.Rothr. & Reznicek
1676678 (urn:lsid:marinespecies.org:taxname:1676678)
accepted
Species
terrestrial
Rothrock, P. E.; Reznicek, A. A. (1996). A new species of Carex section Ovales (Cyperaceae) occurring in the Ozark Mountain region. Brittonia, 48: 104-110.
page(s): 104 [details]
page(s): 104 [details]
Holotype MICH 1109127, geounit Arkansas
Holotype MICH 1109127, geounit Arkansas [details]
Description Plants loosely cespitose in small clumps. Culms (35–)45–95(–110) cm; vegetative culms inconspicuous. Leaves: sheaths...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Brittonia 48: 104 1996 to Brittonia 48: 104 (1996), information...
Description Plants loosely cespitose in small clumps. Culms (35–)45–95(–110) cm; vegetative culms inconspicuous. Leaves: sheaths sometimes abaxially green and white mottled near to collar, adaxially green-veined near collar, Y-shaped, white-hyaline area at collar, adaxially firm, summits U-shaped; distal ligules 2–5.5 mm; blades on fertile culms 3–5, 1.5–24 cm × 1.8–4 mm. Inflorescences open or dense, usually nodding or arching, yellowish brown, 2.3–8.4 cm × 6–17 mm; proximal internode 2.3–16 mm; 2d internode 6–15 mm; proximal bracts bristlelike to 3 cm. Spikes (3–)5–8(–9), distant, distinct, conic to globose, 8–19 × 4.2–8.2 mm, base often strongly clavate, apex acute to rounded; staminate portion of well-developed spikes to 11 mm. Pistillate scales yellowish brown to reddish brown with green midstripe, lanceolate or narrowly ovate, 3–4 mm, shorter and narrower than perigynia, margins white-hyaline, apex acute to obtuse. Perigynia appressed, pale yellow or golden brown with green wing and beak, conspicuously 4–6-veined abaxially, conspicuously 4–6(–7)-veined adaxially, obovate to broadly elliptic, biconvex, 3–4.7 × 1.9–2.8 mm, 0.4–0.5 mm thick, margin flat, including wing 0.5–0.9 mm wide; beak greenish at tip, flat, ciliate-serrulate, abaxial suture with white or reddish brown-hyaline margin, distance from beak tip to achene 1.8–2.7 mm. Achenes elliptic, 1.4–2 × 0.9–1.2 mm, 0.4–0.5 mm thick, 48b apiculum 0.4–0.8 mm; style straight or slightly sinuous. 2n = 62. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Brittonia 48: 104 1996 to Brittonia 48: 104 (1996), information...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Brittonia 48: 104 1996 to Brittonia 48: 104 (1996), information provided by Alan E. on email Jun. 07 2021 More details could be found in T [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex ozarkana P.Rothr. & Reznicek. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676678 on 2025-09-13
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2024-12-10 11:47:54Z
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Nomenclature
original description
Rothrock, P. E.; Reznicek, A. A. (1996). A new species of Carex section Ovales (Cyperaceae) occurring in the Ozark Mountain region. Brittonia, 48: 104-110.
page(s): 104 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 104 [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 MICH 1109127, geounit Arkansas [details]
Unknown type US 00512546, geounit Arkansas [details]
From editor or global species database
Description Plants loosely cespitose in small clumps. Culms (35–)45–95(–110) cm; vegetative culms inconspicuous. Leaves: sheaths sometimes abaxially green and white mottled near to collar, adaxially green-veined near collar, Y-shaped, white-hyaline area at collar, adaxially firm, summits U-shaped; distal ligules 2–5.5 mm; blades on fertile culms 3–5, 1.5–24 cm × 1.8–4 mm. Inflorescences open or dense, usually nodding or arching, yellowish brown, 2.3–8.4 cm × 6–17 mm; proximal internode 2.3–16 mm; 2d internode 6–15 mm; proximal bracts bristlelike to 3 cm. Spikes (3–)5–8(–9), distant, distinct, conic to globose, 8–19 × 4.2–8.2 mm, base often strongly clavate, apex acute to rounded; staminate portion of well-developed spikes to 11 mm. Pistillate scales yellowish brown to reddish brown with green midstripe, lanceolate or narrowly ovate, 3–4 mm, shorter and narrower than perigynia, margins white-hyaline, apex acute to obtuse. Perigynia appressed, pale yellow or golden brown with green wing and beak, conspicuously 4–6-veined abaxially, conspicuously 4–6(–7)-veined adaxially, obovate to broadly elliptic, biconvex, 3–4.7 × 1.9–2.8 mm, 0.4–0.5 mm thick, margin flat, including wing 0.5–0.9 mm wide; beak greenish at tip, flat, ciliate-serrulate, abaxial suture with white or reddish brown-hyaline margin, distance from beak tip to achene 1.8–2.7 mm. Achenes elliptic, 1.4–2 × 0.9–1.2 mm, 0.4–0.5 mm thick, 48b apiculum 0.4–0.8 mm; style straight or slightly sinuous. 2n = 62. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Brittonia 48: 104 1996 to Brittonia 48: 104 (1996), information provided by Alan E. on email Jun. 07 2021 More details could be found in T [details]
To Biodiversity Heritage Library (3 publications)
To European Nucleotide Archive, ENA (Carex ozarkana)
To GenBank (4 nucleotides; 0 proteins)
To International Plant Names Index (IPNI)
To Plants of the World Online
To US Herbarium (Carex ozarkana US3321650 type 1)
To European Nucleotide Archive, ENA (Carex ozarkana)
To GenBank (4 nucleotides; 0 proteins)
To International Plant Names Index (IPNI)
To Plants of the World Online
To US Herbarium (Carex ozarkana US3321650 type 1)
From editor or global species database
Hosted externally
