To better understand what you're referring to, please provide some context or examples of how you've encountered this term. This could include:
* Where did you hear or read this term? (e.g., a book, article, conversation)
* What was the context of the conversation? (e.g., discussing mythology, environmental issues, cultural practices)
* What other terms were used in conjunction with "vegetation myth"?
With more information, I can help you identify what the term might actually refer to.