Synonymy:
Boletus armeniacus Quél., in Guillaud, Forquignon & Merlet, Ann. Sci. Nat. Bordeaux Sud-Ouest, 3, Mém. 2: 40-43 (1884)
Versipellis armeniaca (Quél.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 157 (1886)
Xerocomus armeniacus (Quél.) Quél., Fl. mycol. France (Paris): 419 (1888)
Suillus armeniacus (Quél.) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 535 (1898)
Xerocomus chrysenteron var. armeniacus (Quél.) Kühner & Romagn., Fl. Analyt. Champ. Supér. (Paris): 40 (1953)
Xerocomus versicolor var. armeniacus (Quél.) Skirg., Flora Polska, Grzyby (Fungi), Podstawczaki (Basidiomycetes), Borowikowe (Boletales) (Warszawa): 60 (1960)
Xerocomellus armeniacus (Quél.) Šutara, Czech Mycol. 60(1): 49 (2008)
Rheubarbariboletus armeniacus (Quél.) Vizzini, Simonini & Gelardi, in Vizzini, Index Fungorum 244: 1 (2015)

Boletus subtomentosus var. erythrocephalus Lucand, Fig. champ. (Autun): tab. 98 (1883)
Xerocomus subtomentosus var. erythrocephalus (Lucand) E.-J. Gilbert, Les Livres du Mycologue Tome I-IV, Tom. III: Les Bolets: 116 (1931)
Rheubarbariboletus armeniacus f. erythrocephalus (Lucand) Klofac, in Klofac & Krisai-Greilhuber, Österr. Z. Pilzk. 27: 262 (2018)

Xerocomus armeniacus var. venosipes Redeuilh, Bull. Trimestriel Soc. Mycol. France 111(3): 179 (1995)
Rheubarbariboletus armeniacus var. venosipes (Redeuilh) Klofac, in Klofac & Krisai-Greilhuber, Österr. Z. Pilzk. 25: 2 (2016)

Xerocomus armeniacus f. luteolus H. Engel & Antonín, in Engel, Dermek, Klofac, Ludwig & Brückner, Schmier- und Filzröhrlinge s.l. in Europa, Die Gattungen Boletellus, Boletinus, Phylloporus, Suillus, Xerocomus (Weidhausen b. Coburg): 221 (1996)
Xerocomellus armeniacus var. luteolus (H. Engel & Antonín) Šutara, in Šutara, Mišík & Janda, Hřibovité Houby, Čeled' Boletaceae a Rody Gyrodon, Gyroporus, Boletinus a Suillus (Prague): 38 (2009)
Rheubarbariboletus armeniacus f. luteolus (H. Engel & Antonín) Klofac, in Klofac & Krisai-Greilhuber, Österr. Z. Pilzk. 25: 2 (2016)

Position in classification:
Rheubarbariboletus, Boletaceae, Boletales, Agaricomycetidae, Agaricomycetes, Basidiomycota, Fungi

Note:
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