[2021] Stellaris - New traits appear for other species too

Hi, thanks for the report
This is considered working as designed. The tooltip is there to tell you they can't be taken without the right protrait, but they are shown so the player knows they are an option if they want to change portraits.  

Cause it's a free trait that must be taken when using a lithoid portrait. These traits are optional even if you have a plantoid/fungoid species.