Upwelling
The major upwellings in the ocean are associated with the divergence of currents that bring deeper, colder, nutrient rich waters to the surface. There are at least five types of upwelling: coastal upwelling, large-scale wind-driven upwelling in the ocean interior, upwelling associated with eddies, topographically-associated upwelling, and broad-diffusive upwelling in the ocean interior.
Eidothea hardeniana
The trees are only known to grow naturally in a single creek catchment in warm temperate rainforest in the Nightcap Range, northern New South Wales, Australia. They grow naturally in relatively poor, acidic volcanic soils, in an area of a high rainfall. Only around 100 wild plants are known. Plants are in cultivation, including in the Royal Botanic Gardens, Sydney.