A new species of Centaurea sect. Acrocentron (Asteraceae, Cardueae) from Iran Author Negaresh, Kazem Department of Horticultural Science, Faculty of Agriculture, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Iran. Author Yousefi, Zohreh Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey Author Kaya, Yusuf Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey text Phytotaxa 2023 2023-05-10 597 1 37 50 http://dx.doi.org/10.11646/phytotaxa.597.1.5 journal article 10.11646/phytotaxa.597.1.5 1179-3163 7918782 Centaurea persica IRAN . Prov. Lurestan: Dowroud , 10 km after Natural Resource Office , 1600–1700 m , 18 June 2011 , Negaresh & Ranjbar 26993 ( BASU !, KHAU!: three sheets); Dowroud , Oshtrankuh protected area, mountains between Saravand and Gahar river , 2300–2500 m , Negaresh & Asadbegy 226 ( KHAU !: three sheets); 100 km SW of Khorramabad , 1800 m , Koeie 821 (C!); Saravand , 20 km SE of Dowroud , 2000–2200 m , Rechinger 48104 (W!, E!); Tang-e Sayad protected region, M. Pir Kuh , 32 km E Shahr Kord , substr. calc., 2400–2700 m , Rechinger 47181 (W!); Aligudarz, Abgarmak, 1950 m , 2 July 1994 , Karimi & Fardad 108 ( HLK !); Karimi & Fardad 3586 ( HLK !). Prov. Chaharmahal and Bakhtiari: Chelgard, Negaresh & Ranjbar 28441 ( BASU !, KHAU!); 1890, Sawyer 13019B (E!). Prov. Kohgiluyeh and Bowyer Ahmad: old road of Chitab to Damchenar, after Gandomkesh village , 29 May 2010 , Moazzeni & Pirani 4575 ( TMRC !); Kuh-e Dinar, supra Sisakht, 2400–3400 m , Soják 6267 ( PR !); Soják 6277 ( PR !); in faucibus alpis Kuh-Daena (Kuh-e Dinar), 16 July 1842 , Kotschy 664 ( BM !, G!, GOET!, W!). Prov. Hamedan : M. Karaghan prope Hamedan , Strauss s.n. ( JE !); Kuh-e Wafs, 10 June 1905 , Strauss s.n. ( JE !, W!). Prov. Markazi : Khomeyn, Strauss s.n. ( JE !); Kuh-e Sefid Khaneh, Strauss s.n. ( JE !); Latetar, Strauss s.n. ( JE !); in planitie ad Sultanabad, 14 June 1904 , Strauss s.n. ( B!, JE!); in fauce Girdu, 3 July 1892 , Strauss s.n. ( JE !). Prov. Kermanshah : Paveh toward Ravansar, 5 km from trifurcate of Bayangan-Paveh toward Ravansar, 1780–1800 m , 28 May 2015 , Negaresh & Asadbegy 218 ( KHAU !) . IRAQ . Prov. Arbil : M. Algurd supra pagum Nowanda , 2000–2600 m , Rechinger 11392 (W!); M. Handren prope Rawandiz , Bornmüller 1492 (B!); Bornmüller 1486 (B!) . TURKEY . Bitlis : Totuan , Karz Da above Sapur village , calcareous western slope, mixed forest, 20 August 1972 , Pesman 3274 (E!). C10 Hakkari : Gevar Ovasi , 2–3 km from Yüksekova , 1950 m , 1 July 1966 , Davis 45762 (E!); Cilo Da. , at Sua, 2100 m , 10 August 1954 , Davis 24226B (E!) .