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Pterachaenia (Benth. & Hook. f.) R.R. Stewart
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Zaika, M.A., N. Kilian, K. E. Jones, A. Krinitsina, M. V. Nilova, A.S. Speranskaya & A. P. Sukhorukov. 2020. Scorzonera sensu lato (Asteraceae, Cichorieae) – taxonomic reassessment in the light of new molecular phylogenetic and carpological analyses. PhytoKeys 137: 1–85.
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