Botanical Name: Melaleuca viridiflora. Plant Part: Leaves and Twigs. Extraction Method: Steam. Origin: New Caledonia.Niaouli Essential Oil comes from an evergreen tree with a flexible trunk, spongy bark, and pointed leaves with spikes of sessile flowers. The oil is typically colourless, though depending on the lot number, it may take on a pale yellow or slight greenish tinge. Niaouli has a sweet, fresh, camphoraceous smell. For external use only..