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Issue: Vol. 733 No. 2: 11 Dec. 2025
Type: Article
Published: 2025-12-11
DOI: 10.11646/phytotaxa.733.2.6
Page range: 231-244
Abstract views: 74
PDF downloaded: 4

Cota cinerea (Anthemideae, Asteraceae), a distinct new species from Türkiye

General Directorate of Nature Conservation and National Parks, Biodiversity department, Ankara, Türkiye
Department of Biology, Faculty of Science, Kastamonu University, Kastamonu, Turkiye
Department of Biology, Faculty of Science, Gazi University, Ankara, Türkiye
Department of Biology, Faculty of Science, Kastamonu University, Kastamonu, Turkiye
Anthemideae Asteraceae biodiversity Cota ITS phylogeny new species Eudicots

Abstract

This study describes and illustrates Cota cinerea, a new species from Bartın Province, Türkiye. While it shares certain morphological traits with C. tinctoria and C. triumfetti, it is clearly distinguishable based on a unique combination of characters. These include the presence of sterile shoots up to 30 cm, a very dense, greyish-whitish adpressed tomentose indumentum, and consistently 2-pinnatisect leaves. Moreover, C. cinerea exhibits significantly larger middle and upper leaves, broader primary leaf segments, and more robust disc achenes and corona structures than in both related taxa. Differences in achene micromorphology revealed through scanning electron microscopy (SEM) further support its distinctiveness. To assess the phylogenetic placement of the new species within Cota, both Maximum Likelihood and Bayesian Inference analyses were conducted using the nuclear ribosomal ITS region. In addition to morphological and molecular assessments, the study includes distribution maps and an evaluation of its conservation status following IUCN criteria.

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How to Cite

Yaşayacak, H., Bani, B., Özbek, M.U. & Sabdani, M. (2025) Cota cinerea (Anthemideae, Asteraceae), a distinct new species from Türkiye. Phytotaxa 733 (2): 231–244. https://doi.org/10.11646/phytotaxa.733.2.6