A long swollen but tapering root – like a parsnip, or carrot.
Naturally occurring in New Zealand (i.e., not introduced accidentally or deliberately by humans).
Strands of conducting and usually strengthening tissue in a leaves or similar structures.
Referring to plants that have escaped from cultivation (including gardens or forest plantations) and can now reproduce in the wild (without human assistance).
Growing at high altitudes. From Latin: nivalis, snowy etc. from nix, nivis, snow.