Synonyms for Silver Pine (same or very similar meaning)
WordNet sense 1 (timber tree of New Zealand having shiny white wood):
westland pine, Lagarostrobus colensoiWordNet sense 2 (tall pine of western North America with stout blue-green needles; bark is grey-brown with rectangular plates when mature):
western white pine, mountain pine, Pinus monticolaFrom the ODE community, based on WordNetadd/edit