Absinthium ponticum Besser (original description)
Artemisia deliliana Besser accepted as Artemisia monosperma Delile (original description)
Aster dracunculoides Besser (original description)
Centaurea neglecta Besser accepted as Centaurea salonitana Vis. (original description)
Centaurea stereophylla Besser (original description)
Centaurea ustulata Besser accepted as Centaurea stoebe subsp. australis (Pančić ex A.Kern.) Greuter (original description)
Centaurea virgata Besser accepted as Centaurea besseriana DC. (original description)
Cineraria aurantiaca Besser accepted as Tephroseris integrifolia (L.) Holub (original description)
Cineraria longifolia Besser accepted as Tephroseris longifolia (Jacq.) Griseb. & Schenk (original description)
Echinops ruthenicus Besser (original description)
Erigeron asteroides Andrz. ex Besser accepted as Erigeron acris subsp. podolicus (Besser) Nyman (original description)
Erigeron podolicus Besser accepted as Erigeron acris subsp. podolicus (Besser) Nyman (original description)
Hieracium nemorosum Besser (original description)
Hieracium stoloniferum Besser accepted as Pilosella auriculoides (Láng) Arv.-Touv. (original description)
Inula campestris Besser (original description)
Leontodon hispanicus Besser (original description)
Serratula nitida Besser (original description)
Taraxacum erythrospermum Andrz. ex Besser (original description)