What defines a 'native' plant within a specific region?

A 'native' plant is defined as one that has adapted to a specific environment over time, meaning it has evolved in harmony with the local climate, soil conditions, and ecological interactions for a significant period. These plants have coexisted with local wildlife, which often rely on them for food and habitat. Their adaptation can include changes in growth patterns, flowering times, and resistance to pests and diseases specific to that region. This relationship enhances biodiversity and helps maintain the ecological balance.

In contrast, plants introduced from other regions do not share this long-term adaptation and may disrupt local ecosystems if they become invasive. Landscaping plants and those that thrive only in urban settings may not necessarily reflect the ecological characteristics of the native flora of a region. Thus, the correct answer emphasizes the importance of adaptation over time, which characterizes native plants.