Backeberg took this taxon for a new genus, and described it as Neobinghamia.

According to Ostolaza (Quepo 2009), five taxa are known, all situated west of the Andes.

[1] The genus × Haagespostoa is in the family Cactaceae in the major group Angiosperms (Flowering plants).

[2] The genus × Haagespostoa grows endemically in Peru on mountainous slopes in rocky masses, in ravines (quebradas) and valleys, between 300 m and 1820 m in altitude.

[1] Peru (Ancash, Lambayeque, Lima)[1]