Carex huancabambica (Cyperaceae), a new species from the Peruvian and Ecuadorian Andes

The Huancabamba Depression in Neotropical South America, a natural barrier between the Northern and Central Andes, serves as a refuge for high levels of angiosperm diversity. However, this biodiversity remains understudied, especially in complex and species-rich genera, such as Carex L. (Cyperaceae)...

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Autores: González-Gallego, Luis, Benítez Benítez, Carmen, Reznicek, Anton A., Cano, Asunción, Oleas, Nora H., Martín Bravo, Santiago, Jiménez Mejías, Pedro
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/180579
Acceso en línea:https://hdl.handle.net/11441/180579
https://doi.org/10.3897/phytokeys.265.161909
Access Level:acceso abierto
Palabra clave:Andes
Neotropics
New species
Phylogenetics
Porocystis
South America
Systematics
Taxonomy
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spelling Carex huancabambica (Cyperaceae), a new species from the Peruvian and Ecuadorian AndesGonzález-Gallego, LuisBenítez Benítez, CarmenReznicek, Anton A.Cano, AsunciónOleas, Nora H.Martín Bravo, SantiagoJiménez Mejías, PedroAndesNeotropicsNew speciesPhylogeneticsPorocystisSouth AmericaSystematicsTaxonomyThe Huancabamba Depression in Neotropical South America, a natural barrier between the Northern and Central Andes, serves as a refuge for high levels of angiosperm diversity. However, this biodiversity remains understudied, especially in complex and species-rich genera, such as Carex L. (Cyperaceae). This genus is notably underrepresented in taxonomic and systematic research on the Neotropics. In this study, we employed an integrative systematic approach combining molecular and morphological data to elucidate the taxonomic status of several Carex populations from Ecuador and northern Peru, which exhibit morphological affinities with the sect. Porocystis Dumort. (Castanea Clade). We conducted a phylogenetic analysis using two nuclear (ITS and ETS) and one plastid (matK) DNA regions and carried out a detailed morphological comparison with Neotropical relatives within the section. Both phylogenetic and morphological results supported the systematic distinctiveness of the focal populations. As a result, we describe a new species, Carex huancabambica Gonz.Gallego & Jim.Mejías, sp. nov. and provide its taxonomic treatment. This study contributes to disentangling the biodiversity of the genus Carex in the Neotropics.Pensoft PublishersBiología Vegetal y EcologíaAgencia Española de Investigación del Ministerio de Ciencia e Innovación2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/180579https://doi.org/10.3897/phytokeys.265.161909reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésPhytokeys, 265, 161-180.PID2020-113897GB-I00PID2023-147332NB-I00https://phytokeys.pensoft.net/article/161909/info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1805792026-06-17T12:51:07Z
dc.title.none.fl_str_mv Carex huancabambica (Cyperaceae), a new species from the Peruvian and Ecuadorian Andes
title Carex huancabambica (Cyperaceae), a new species from the Peruvian and Ecuadorian Andes
spellingShingle Carex huancabambica (Cyperaceae), a new species from the Peruvian and Ecuadorian Andes
González-Gallego, Luis
Andes
Neotropics
New species
Phylogenetics
Porocystis
South America
Systematics
Taxonomy
title_short Carex huancabambica (Cyperaceae), a new species from the Peruvian and Ecuadorian Andes
title_full Carex huancabambica (Cyperaceae), a new species from the Peruvian and Ecuadorian Andes
title_fullStr Carex huancabambica (Cyperaceae), a new species from the Peruvian and Ecuadorian Andes
title_full_unstemmed Carex huancabambica (Cyperaceae), a new species from the Peruvian and Ecuadorian Andes
title_sort Carex huancabambica (Cyperaceae), a new species from the Peruvian and Ecuadorian Andes
dc.creator.none.fl_str_mv González-Gallego, Luis
Benítez Benítez, Carmen
Reznicek, Anton A.
Cano, Asunción
Oleas, Nora H.
Martín Bravo, Santiago
Jiménez Mejías, Pedro
author González-Gallego, Luis
author_facet González-Gallego, Luis
Benítez Benítez, Carmen
Reznicek, Anton A.
Cano, Asunción
Oleas, Nora H.
Martín Bravo, Santiago
Jiménez Mejías, Pedro
author_role author
author2 Benítez Benítez, Carmen
Reznicek, Anton A.
Cano, Asunción
Oleas, Nora H.
Martín Bravo, Santiago
Jiménez Mejías, Pedro
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Biología Vegetal y Ecología
Agencia Española de Investigación del Ministerio de Ciencia e Innovación
dc.subject.none.fl_str_mv Andes
Neotropics
New species
Phylogenetics
Porocystis
South America
Systematics
Taxonomy
topic Andes
Neotropics
New species
Phylogenetics
Porocystis
South America
Systematics
Taxonomy
description The Huancabamba Depression in Neotropical South America, a natural barrier between the Northern and Central Andes, serves as a refuge for high levels of angiosperm diversity. However, this biodiversity remains understudied, especially in complex and species-rich genera, such as Carex L. (Cyperaceae). This genus is notably underrepresented in taxonomic and systematic research on the Neotropics. In this study, we employed an integrative systematic approach combining molecular and morphological data to elucidate the taxonomic status of several Carex populations from Ecuador and northern Peru, which exhibit morphological affinities with the sect. Porocystis Dumort. (Castanea Clade). We conducted a phylogenetic analysis using two nuclear (ITS and ETS) and one plastid (matK) DNA regions and carried out a detailed morphological comparison with Neotropical relatives within the section. Both phylogenetic and morphological results supported the systematic distinctiveness of the focal populations. As a result, we describe a new species, Carex huancabambica Gonz.Gallego & Jim.Mejías, sp. nov. and provide its taxonomic treatment. This study contributes to disentangling the biodiversity of the genus Carex in the Neotropics.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/180579
https://doi.org/10.3897/phytokeys.265.161909
url https://hdl.handle.net/11441/180579
https://doi.org/10.3897/phytokeys.265.161909
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Phytokeys, 265, 161-180.
PID2020-113897GB-I00
PID2023-147332NB-I00
https://phytokeys.pensoft.net/article/161909/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pensoft Publishers
publisher.none.fl_str_mv Pensoft Publishers
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
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