Cota cinerea (Anthemideae, Asteraceae), a distinct new species from Türkiye Author Yaşayacak, Hasan 0000-0003-0987-0259 General Directorate of Nature Conservation and National Parks, Biodiversity department, Ankara, Türkiye h.yasayacak57@gmail.com Author Bani, Bariş 0000-0001-5694-3700 Department of Biology, Faculty of Science, Kastamonu University, Kastamonu, Turkiye barisbani@yahoo.com Author Özbek, Mehmet Ufuk 0000-0002-2342-4143 Department of Biology, Faculty of Science, Gazi University, Ankara, Türkiye ufukozbek@gazi.edu.tr Author Sabdani, Mardiya 0009-0003-4549-8770 Department of Biology, Faculty of Science, Kastamonu University, Kastamonu, Turkiye sabdaniemm@gmail.com text Phytotaxa 2025 2025-12-11 733 2 231 244 https://doi.org/10.11646/phytotaxa.733.2.6 journal article 314530 10.11646/phytotaxa.733.2.6 5fdd5862-4d93-4ca9-86c6-af0e156ef73f 1179-3163 18423591

TABLE 1. Comparisons of diagnostic characters of Cota cinerea and related species.

Characters	C. cinerea	C. tinctoria	C. triumfetti	C. virescens	C. melanoloma
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Branching position on the stem	middle and above	base	base and middle	base	base
Rhizome length (cm)	>45	up to 22	up to 10	1–12	up to 20
Sterile shoot length (cm)	up to 30	absent	absent	absent	2.5–15
Stem indumentum	very densely greyish-whitish adpressed tomentose	sparsely or densely adpressed tomentose, sometimes almost glabrous	adpressed tomentose, sometimes almost glabrous	glabrous or sparsely hairy	sparsely white hairy
Basal leaf size (cm)	2.1–4 × 1.3–1.6	1–7 × 0.5–4	2–20 × 0.8–4.5	2–8 × 1.5–5.5	0.35–1.5 × 0.2–1
Middle cauline leaf size (mm)	40–70 × 20–35	8–30 × 3–15	18–45 × 12–22	10–35 × 7–25	15–40 × 5–30
Leaf division type	2-pinnatisect	2–3-pinnatisect	2–3-pinnatisect	2-pinnatisect	2–3-pinnatisect
Primary segment size 13–20 × 10–11 (middle leaves, mm)		3–8 × 1–3	3–13 × 1–5	6–13 × 2.5–5	2–15 × 0.5–7
Primary segment size 7–30 × 5–9 (mm) (basal leaves)		3–9(–15) × 1–3(–5)	2–8 × 0.5–4	8–10 × 2–4 mm	3–10 × 2–7
Primary segment shape (basal leaves)	oblanceolate	lanceolate	lanceolate, lanceolate -elliptic or oblong-elliptic	elliptic	oblong-oblanceolate
Peduncle length (cm) 25–40		2–23	4.5–20	3.5–17.5	6–20
Disc achene size (mm)	2–3.5 × 1	1.69–2.05 × 1.34–2.87 × 0.52–1.09 0.43–0.74		2–2.5 × 0.5–1	2.1–3.32 × 0.66–1.3
Corona (mm)	0.55–0.6	0.05–0.51	0.1–0.29	0.25–0.50	0.2–0.56