-in·e·ae
\ˈinēˌē\  noun plural suffix 
Etymology: New Latin, from Latin, feminine plural of -ineus (as in gramineus gramineous) 
 : plants including those of (such) a genus 
< Abietineae >
: plants characterized by (such) a feature
< Dinocapsineae >
— in names of botanical suborders
< Abietineae >
: plants characterized by (such) a feature
< Dinocapsineae >
— in names of botanical suborders