Since this word is made up of a single kanji, it probably uses the kun'yomi reading. You did not learn this reading, so here's a mnemonic to help you remember:
When you cut the tree down to produce a tree trunk, out jumps Mickey Mouse. "WHY YOU CUT DOWN MY TREE BRO?" he yells. I'm Mickey Mouse and I don't stand for this.
You should remove the ivy winding around the tree trunk.