Indigenous culture and or culture?

An indigenous culture is one that is endemic or native to a particular area, normally one that is unchanged or unaffected by external influences.

Examples would be: The aboriginal peoples of Australia before European settlers or the Khoi San people of Southern Africa before the arrival of European and other native tribes.

Culture (on its own) is more commonly used to describe the traits, habits, religion, politics, ethnicity, food, language (etc.) of a particular group of people who have a common denominator; it is more of a generalisation.

For example what is the culture of Scottish people within the United Kingdom, or what is the culture of English people within Europe.