SZELĄG Z, VLADIMIROV V. <em>Senecio</em> ×<em>riloensis</em> (Asteraceae), a new natural hybrid between<em> S. hercynicus</em> and <em>S. transylvanicus</em> from Bulgaria. Phytotaxa [Internet]. 2022 Nov. 10 [cited 2025 Mar. 18];572(2):144-8. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.572.2.2