New Zealand taxa treated as Weinmannia are referrable to Pterophylla D.Don (Pillon et al. 2021).

Reference

Pillon, Y.; Hopkins, H.C.F.; Maurin, O.; Epitawalage, N.; Bradford, J.; Rogers, Z.S.; Baker, W.J.; Forest, F. 2021: Phylogenomics and biogeography of Cunoniaceae (Oxalidales) with complete generic sampling and taxonomic realignments. American Journal of Botany 108(7): 1–20.