Defining Modern Nature Since 1492

Botanists classify non-native plants based on their history. A plant introduced to a region after 1492 is called a neophyte, while those established earlier are known as archaeophytes.

This cutoff date corresponds to the start of the Columbian Exchange, which drastically changed plant life across the globe. By tracking when new species arrived, scientists can better understand human impact on local ecosystems. It is fascinating to realize that many plants we consider native fixtures of our local landscape actually have a precise expiration date for their newcomer status. This classification system helps researchers separate ancient immigrants from modern arrivals.