Astelia trinervia is a species of rhizomatous tufted perennial native to New Zealand.Flora of New Zealand. 2004 An example occurrence of this species is in the North Island's Hamilton Ecological District, where it occurs in the understory associated with Blechnum discolor (crown fern) and overstory forest elements of rimu and Nothofagus trees.C. Michael Hogan. 2009
Line notes
References Flora of New Zealand. 2004. Astelia: Banks et Sol. ex R. Br. C. Michael Hogan. 2009. Crown Fern: Blechnum discolor, Globaltwitcher.com, ed. N. Stromberg