Szeląg, Zbigniew, 2023, Hieracium umbellonigritum (Asteraceae), a new hybridogenous species from the Sudetes in Poland

Szeląg, Zbigniew, 2023, Hieracium umbellonigritum (Asteraceae), a new hybridogenous species from the Sudetes in Poland, Phytotaxa 589 (3), pp. 289-292

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https://doi.org/10.11646/phytotaxa.589.3.8

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https://doi.org/10.11646/phytotaxa.589.3.8

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