The phrase “not from the original lands” implies that something or someone is from a place other than their ancestral or initial place of origin. Some synonyms for this expression could be “non-native to the original territory”, “not indigenous to the source lands”, or “from elsewhere than the original homelands”.
“Non-native to the original territory” clearly states that the subject is not a native or original inhabitant of the particular land being referred to. For example, “The plant is non-native to the original territory and was introduced later.” This shows that the plant did not originate in that specific area.
“Not indigenous to the source lands” emphasizes that the entity is not naturally occurring or originating from the source lands. “The species is not indigenous to the source lands and was brought in by human activities.” This indicates that the species is foreign to the area and not part of its original ecosystem.
“From elsewhere than the original homelands” is a more descriptive way of saying that something or someone comes from a different place than their original homeland. “The people are from elsewhere than the original homelands, seeking new opportunities.” This implies that the people have left their original places and are now in a different location.
These synonyms can be used in different contexts to describe things or people that are not from their original places of origin, adding variety and precision to your language.