Synonymy:
Hydnum caeruleum Hornem., Fl. Danic. 8(23): 7, tab. 1374 (1808)
Hydnum suaveolens var. caeruleum (Hornem.) Fr., Epicrisis Systematis Mycologici: 507 (1838) [1836-1838]
Calodon caeruleus (Hornem.) P. Karst., Bidr. Känn. Finl. Nat. Folk 37: 106 (1882)
Hydnum suaveolens subsp. caeruleum (Hornem.) Sacc., Syll. Fung. (Abellini) 6: 438 (1888)
Phellodon caeruleus (Hornem.) R. Schulz, Verh. bot. Ver. Prov. Brandenb. 54: 41 (1913) [1912]

Hydnum cyaneotinctum Peck, Bull. Torrey bot. Club 30: 98 (1903)
Hydnellum cyaneotinctum (Peck) Banker, Mem. Torrey bot. Club 12(2): 164 (1906)
Calodon cyaneotinctus (Peck) Snell, Mycologia 37(1): 51 (1945)

Hydnellum inquinatum Banker, Mycologia 5(4): 202 (1913)
Hydnum inquinatum (Banker) Sacc. & Trotter, Syll. Fung. (Abellini) 23: 472 (1925)

Hydnum alachuanum (Murrill) Murrill, Bull. Torrey bot. Club 67: 281 (1940)
Sarcodon alachuanus Murrill [as 'alachuanum'], Bull. Torrey bot. Club 67: 275 (1940)
Hydnellum alachuanum (Murrill) Coker & Beers, The stipitate hydnums of the eastern United States: 66 (1951)

Position in classification:
Hydnellum, Bankeraceae, Thelephorales, Incertae sedis, Agaricomycetes, Basidiomycota, Fungi

Note:
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