Cyperaceae taxon details
Carex subdivulsa (Kük.) G.A.Wheeler
1676098 (urn:lsid:marinespecies.org:taxname:1676098)
accepted
Species
Carex involucrata var. subdivulsa Kük. · unaccepted
Carex sororia f. subdivulsa (Kük.) Kük. · unaccepted
terrestrial
(of Carex involucrata var. subdivulsa Kük.) Kükenthal, G. ((1899)1900). Die Carex-Vegetation des aussertropischen Südamerika (ausgenommen Paraguay und Südbrasilien). <em>Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie.</em> 27: 485-563., available online at https://www.biodiversitylibrary.org/page/210229#page/499/mode/1up
page(s): 511 [details]
page(s): 511 [details]
Neotype , geounit La Rioja
Neotype, geounit La Rioja [details]
Description Plants cespitose from dark-colored, short-creeping rhizomes. Fertile culms 18–60 cm tall, from slightly shorter than to...
Description Plants cespitose from dark-colored, short-creeping rhizomes. Fertile culms 18–60 cm tall, from slightly shorter than to greatly exceeding the leaves, triangular, smooth except sometimes scaberulent distally, 0.8–1.6 mm thick, with glabrous brown basal sheaths. Leaves 3–9; blades 2.5–5 mm wide, plicate, glabrous, margins smooth except scaberulent distally; leaf sheaths 1.5–3.5 cm long, glabrous, more or less loosely enveloping culms; the inner band of sheaths glabrous, hyaline or pale brown, the apex shallowly concave or nearly straight across; ligules 0.4–2.2 mm long, rounded, wider than long, the free portion brownish. Inflorescences 2–4 cm long, 5–12 mm wide, spikes aggregated into a slightly interrupted oblong head, with the lower 1–3 primary spikes usually somewhat separated; lowermost bract often exceeding the inflorescence, 4–10 cm long, scale-like, 2.5 mm wide or less at the base and gradually tapering to a scabrous-angled pungent tip, upper bracts much reduced. Spikes ca. 5–12, androgynous, the upper ones mostly indistinguishable, the lower ones generally somewhat separated and conspicuous and the lowest spike sometimes with 1 or 2 smaller secondary spikes, the apical staminate flowers inconspicuous (except the anthers), perigynia ca. 8–30 per spike. Pistillate scales 2.6–3.4 mm long, 1.1–2 mm wide, about as long and wide as the reddish brown to reddish brown, with narrow hyaline margins and stramineous center, 1-veined. Staminate scales 2.2–2.6 mm long, 0.6–1 mm wide, lanceolate, acute, glabrous, pale reddish brown with stramineous center, 1-veined. Perigynia 2.7–3.6 mm long, 1–1.9 mm wide, ascending to wide spreading, plano-convex with ovate-lanceolate sides, glabrous, pale reddish brown to reddish brown, veinless (or nearly so) on both faces except slightly puckered and weakly 4–7-veined proximally on the adaxial face and very little bulged, margins smooth except sometimes scaberulent on the shoulders, substipitate, more or less gradually tapered into a beak; beaks 0.7–1.2 mm long, margins scaberulent or sometimes smooth, the apex bidentulate and often reddish-browninged, the teeth 0.1–0.4 mm long. Achenes 1.3–1.6 mm long, 0.8–1.2 mm wide, lenticular with oblong sides, closely enveloped by the perigynium, brown, sessile or nearly so. Stigmas 2. Anthers 3, 1.1–1.8 mm long including a slender filament. [details]
Cyperaceae Working Group. (2026). [see How to cite]. Global Cyperaceae Database. Carex subdivulsa (Kük.) G.A.Wheeler. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1676098 on 2026-06-26
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Nomenclature
original description
(of Carex involucrata var. subdivulsa Kük.) Kükenthal, G. ((1899)1900). Die Carex-Vegetation des aussertropischen Südamerika (ausgenommen Paraguay und Südbrasilien). <em>Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie.</em> 27: 485-563., available online at https://www.biodiversitylibrary.org/page/210229#page/499/mode/1up
page(s): 511 [details]
new combination reference Wheeler, G. A. (2002). Carex (Cyperaceae) from South America: three new species and some name changes. <em>Darwiniana.</em> 40: 199-208., available online at https://www.jstor.org/stable/23225174
page(s): 203 [details] Available for editors
[request]
page(s): 511 [details]
new combination reference Wheeler, G. A. (2002). Carex (Cyperaceae) from South America: three new species and some name changes. <em>Darwiniana.</em> 40: 199-208., available online at https://www.jstor.org/stable/23225174
page(s): 203 [details] Available for editors
[request]Taxonomy
taxonomy source
Jiménez-Mejías, P.; Martín-Bravo, S.; Márquez-Corro, J. I.; Donadío, S.; Roalson, E. H.; Naczi, R. F. C. (2021). A synopsis of the androgynous species of <i>Carex</i> subgenus <i>Vignea</i> (Cyperaceae) in South America. <em>Botanical Journal of the Linnean Society.</em> 196(2): 188-220., available online at https://doi.org/10.1093/botlinnean/boaa100 [details]
taxonomy source Morales-Alonso, A.; Muñoz-Schüler, P.; Villaverde, T.; Jiménez-Mejías, P. (2025). A tale of two lineages: comparative biogeography across the Southern Cone of two South American <i>Carex</i> (Cyperaceae) groups. <em>Annals of Botany.</em> , available online at https://doi.org/10.1093/aob/mcaf262 [details]
taxonomy source Morales-Alonso, A.; Muñoz-Schüler, P.; Villaverde, T.; Jiménez-Mejías, P. (2025). A tale of two lineages: comparative biogeography across the Southern Cone of two South American <i>Carex</i> (Cyperaceae) groups. <em>Annals of Botany.</em> , available online at https://doi.org/10.1093/aob/mcaf262 [details]
Other
subsequent type designation
Wheeler, G. A. (2002). Carex (Cyperaceae) from South America: three new species and some name changes. <em>Darwiniana.</em> 40: 199-208., available online at https://www.jstor.org/stable/23225174
page(s): 203 [details] Available for editors [request]
page(s): 203 [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
Isoneotype, geounit La Rioja [details]
Isoneotype, geounit La Rioja [details]
Neotype, geounit La Rioja [details]
From editor or global species database
Description Plants cespitose from dark-colored, short-creeping rhizomes. Fertile culms 18–60 cm tall, from slightly shorter than to greatly exceeding the leaves, triangular, smooth except sometimes scaberulent distally, 0.8–1.6 mm thick, with glabrous brown basal sheaths. Leaves 3–9; blades 2.5–5 mm wide, plicate, glabrous, margins smooth except scaberulent distally; leaf sheaths 1.5–3.5 cm long, glabrous, more or less loosely enveloping culms; the inner band of sheaths glabrous, hyaline or pale brown, the apex shallowly concave or nearly straight across; ligules 0.4–2.2 mm long, rounded, wider than long, the free portion brownish. Inflorescences 2–4 cm long, 5–12 mm wide, spikes aggregated into a slightly interrupted oblong head, with the lower 1–3 primary spikes usually somewhat separated; lowermost bract often exceeding the inflorescence, 4–10 cm long, scale-like, 2.5 mm wide or less at the base and gradually tapering to a scabrous-angled pungent tip, upper bracts much reduced. Spikes ca. 5–12, androgynous, the upper ones mostly indistinguishable, the lower ones generally somewhat separated and conspicuous and the lowest spike sometimes with 1 or 2 smaller secondary spikes, the apical staminate flowers inconspicuous (except the anthers), perigynia ca. 8–30 per spike. Pistillate scales 2.6–3.4 mm long, 1.1–2 mm wide, about as long and wide as the reddish brown to reddish brown, with narrow hyaline margins and stramineous center, 1-veined. Staminate scales 2.2–2.6 mm long, 0.6–1 mm wide, lanceolate, acute, glabrous, pale reddish brown with stramineous center, 1-veined. Perigynia 2.7–3.6 mm long, 1–1.9 mm wide, ascending to wide spreading, plano-convex with ovate-lanceolate sides, glabrous, pale reddish brown to reddish brown, veinless (or nearly so) on both faces except slightly puckered and weakly 4–7-veined proximally on the adaxial face and very little bulged, margins smooth except sometimes scaberulent on the shoulders, substipitate, more or less gradually tapered into a beak; beaks 0.7–1.2 mm long, margins scaberulent or sometimes smooth, the apex bidentulate and often reddish-browninged, the teeth 0.1–0.4 mm long. Achenes 1.3–1.6 mm long, 0.8–1.2 mm wide, lenticular with oblong sides, closely enveloped by the perigynium, brown, sessile or nearly so. Stigmas 2. Anthers 3, 1.1–1.8 mm long including a slender filament. [details]Etymology note From the Latin sub-, close to, ‘close to [Carex] divulsa’. [details]
To Biodiversity Heritage Library (1 publication)
To European Nucleotide Archive, ENA (Carex subdivulsa)
To GenBank (3 nucleotides; 1 proteins)
To GenBank (3 nucleotides; 1 proteins) (from synonym Carex involucrata var. subdivulsa Kük.)
To International Plant Names Index (IPNI) (from synonym Carex sororia f. subdivulsa (Kük.) Kük.)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex involucrata var. subdivulsa Kük.)
To Plants of the World Online (from synonym Carex involucrata var. subdivulsa Kük.)
To Plants of the World Online
To Plants of the World Online (from synonym Carex sororia f. subdivulsa (Kük.) Kük.)
To University of Minnesota Herbarium (Carex subdivulsa MIN953626 neotype 1)
To European Nucleotide Archive, ENA (Carex subdivulsa)
To GenBank (3 nucleotides; 1 proteins)
To GenBank (3 nucleotides; 1 proteins) (from synonym Carex involucrata var. subdivulsa Kük.)
To International Plant Names Index (IPNI) (from synonym Carex sororia f. subdivulsa (Kük.) Kük.)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex involucrata var. subdivulsa Kük.)
To Plants of the World Online (from synonym Carex involucrata var. subdivulsa Kük.)
To Plants of the World Online
To Plants of the World Online (from synonym Carex sororia f. subdivulsa (Kük.) Kük.)
To University of Minnesota Herbarium (Carex subdivulsa MIN953626 neotype 1)
From editor or global species database
Hosted externally
