Achillea nobilis subsp. neilreichii (A.Kern.) Takht. accepted as Achillea nobilis subsp. neilreichii (A.Kern.) Velen. (original description)
Amberboa moschata subsp. sosnovskyi (Iljin) Takht. accepted as Amberboa sosnovskyi Iljin (original description)
Arctium tomentosum subsp. palladinii Takht. accepted as Arctium palladini (Marcow.) R.E.Fr. & Söderb. (original description)
Cheirolepis kotschyi subsp. persica (Boiss.) Takht. accepted as Centaurea kotschyi subsp. persica (Boiss.) Greuter (original description)
Chondrilla juncea subsp. acantholepis (Boiss.) Takht. accepted as Chondrilla acantholepis Boiss. (original description)
Helichrysum armenium subsp. araxinum (Takht. ex Kirp.) Takht. accepted as Helichrysum araxinum Takht. ex Kirp. accepted as Helichrysum armenium subsp. armenium (original description)
Helichrysum undulatum subsp. rubicundum (K.Koch) Takht. accepted as Helichrysum rubicundum (K.Koch) Bornm. (original description)
Steptorhamphus tuberosus subsp. petraeus (Fisch. & C.A.Mey.) Takht. accepted as Lactuca tuberosa Jacq. (original description)
Tanacetum flavovirens subsp. tamrutense (Sosn.) Takht. accepted as Tanacetum pinnatum Boiss. (original description)
Tragopogon coloratus subsp. nachitschevanicus (Kuth.) T.N.Popova accepted as Tragopogon pterocarpus DC. (original description)
Tragopogon coloratus subsp. serotinus (Sosn.) T.N.Popova accepted as Tragopogon serotinus Sosn. (original description)