Olemba tree

The olemba trees are plants native to the Draenor region of Talador, later known as Terokkar Forest. They make up the bulk of Terokkar's forests. Their seeds are stored in tough, fist-sized cones that fall from the tree's branches once they've reached maturity, glowing with a beautiful blue light. Rakoria was interested in trying to press their oily seeds in order to extract something useful out of it, resulting in a high-quality mana oil. Olemba root also has shamanistic properties.

Ros'eleth tried to send olemba seeds to the park of Stormwind City, but as it got later burned down by Deathwing, it is doubtful olemba trees can be found on Azeroth.