produced or beginning in a certain spot or nation; produced normally in a country or weather; native; maybe not exotic.
Figuratively, inborn; built-in; intrinsic.
Synonyms local, etc. See original, a.
In geology, noting a rock or a mineral with originated therefore in the location in which it really is discovered, including granite or basalt in situ. A glacial boulder brought from a distance is exotic or unpredictable.
In physiography, noting a stream which created originally in its current environment: it's a consequent one in most cases.