the ingame clan or the plugin clans?

The plugin clans.
The in-game green names are what I assume you are talking about otherwise, and that's referred to as teams. 

MNGO

The plugin clans.
The in-game green names are what I assume you are talking about otherwise, and that's referred to as teams. 

dariu123

i see, so the ingame teams is not detected?

From what I see in the config, teams will not be detected/used by this plugin. 
Only clans have a toggle for functionality.