Siebera is a genus of flowering plants in the tribe Cardueae in the family Asteraceae, native to Western Asia.Gay, Jacques Étienne. 1827. Mémoires de la Société d'Histoire Naturelle de Paris 3: 344 in FrenchTropicos, Siebera J. Gay
SpeciesFlann, C (ed) 2009+ Global Compositae Checklist The Plant List search for Siebera Siebera nana (DC.) Bornm. – Israel, Palestine, Jordan, Lebanon, Syria, Turkey, Iran, Afghanistan Siebera pungens (Lam.) J.Gay – Israel, Palestine, Jordan, Lebanon, Syria, Turkey
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