Introduction
= The period when the plant (or its
propagules) arrive at a site beyond their
previous geographical range by
dispersal mechanisms and establish
population of adult plants
Colonization
= The period when plants in the
founding population reproduce and
increase in number to form a colony that
is self-perpetuating
Naturalization
= The period when the plant species
establishes new self-perpetuating
populations, undergoes widespread
dispersal, and becomes incorporated
into the resident flora