Ganoderma, or Lingzhi灵芝/靈芝 in Chinese and Reishi霊芝/靈芝 in Japanese, is a kind of TCM and it has very nice meaning.

Model: NAI-full pruned.

It will replace the "mushroom" in your prompt.

"holding mushroom" may become "holding ganoderma", "mushroom forest" may become "ganoderma forest".

strength depends on your prompt.