maybe over the tens go thousands years it grew into a tree because it was blue silver grass it was blue silver emperor an evolved version and ruler of all plant types
Just as he was about to leave, he noticed that the massive Ancient Life Tree was changing slowly. A faintly discernible face was revealed. It smiled gently as it gazed after his departing silhouette. "Silly child, how can I possibly not protect Shrek and Tang Sect?"
Soul Land III (Douluo Dalu): The Legend of the Dragon King