This is another kanji that is the same as the radical. Both tree and tree are the same in looks and meaning.
You’re walking through the trees, looking at them. They look ominous. Then, your foot gets stuck in the muck (もく) and you try to pull your leg out, but can’t. Then the trees next to you begin to mock you. Even the mocking birds mock you. It’s terrible. It’s painful. You’re being mocked while you’re stuck in the muck.
Currently there are no similar looking kanji which exist in the WaniKani learning system