Parent: Certhia (Creepers)

└─ Certhia familiaris (Eurasian treecreeper)

└─── Certhia familiaris bianchii

└─── Certhia familiaris brittanica

└─── Certhia familiaris caucasica

└─── Certhia familiaris corsa

└─── Certhia familiaris daurica

└─── Certhia familiaris familiaris

└─── Certhia familiaris japonica

└─── Certhia familiaris macrodactyla

└─── Certhia familiaris persica

└─── Certhia familiaris tianschanica