Grosse-Veldmann, B., Conn, B. J., & Weigend, M. (2016).

Weeding the nettles IV: A redefinition of Urtica incisa and allies in New Zealand and Australia, including the segregation of two new species Urtica sykesii and U. perconfusa

. Phytotaxa, 245(4), 251–261. https://doi.org/10.11646/phytotaxa.245.4.2