Large and Braggins (2004) note that the holotype of C. humilis is "almost certainly a juvenile of Cyathea stuhlmannii", a taxon also described by Hieronymus.
Cyathea | Allocasuarina humilis | Polistes humilis | Phacelia humilis | Humilis of Bisignano | Cyathea kermadecensis | Cyathea elongata | Cyathea dealbata | Cyathea cuspidata |