toatoa noun5 •(New-Zealand) Any of various plants. •(New-Zealand) Haloragis erecta (shrubby haloragis, erect seaberry). •(New-Zealand) Phyllocladus alpinus (mountain celery pine). •(New-Zealand) Phyllocladus toatoa. •(New-Zealand) Phyllocladus trichomanoides (tanekaha)