Carduus ilvensis Prodan (original description)
Carduus murfatlarii Nyár. & Prodan accepted as Carduus acanthoides L. (original description)
Centaurea singeorzana Prodan (original description)
Hieracium alexandri-borzae Prodan accepted as Pilosella calomastix (Peter) Soják (original description)
Hieracium baleanum Prodan accepted as Hieracium sparsum subsp. baleanum (Prodan) Greuter (original description)
Hieracium bucovinense Prodan (original description)
Hieracium cimpiense Prodan accepted as Pilosella piloselloides subsp. bauhini (Schult.) S.Bräut. & Greuter (original description)
Hieracium manasae Prodan (original description)
Hieracium muscelii Prodan accepted as Pilosella muscelii (Prodan) S.Bräut. & Greuter (original description)
Hieracium precupii Prodan accepted as Pilosella muscelii (Prodan) S.Bräut. & Greuter (original description)
Hieracium pui Prodan accepted as Pilosella muscelii (Prodan) S.Bräut. & Greuter (original description)
Hieracium retezaticola Prodan accepted as Pilosella muscelii (Prodan) S.Bräut. & Greuter (original description)
Hieracium subvladeasae Prodan (original description)
Hieracium supravladeasae Prodan (original description)
Hieracium topaeanum Prodan accepted as Hieracium umbellatum subsp. topaeanum (Prodan) Greuter (original description)
Hieracium vladeasae Prodan (original description)