Tattoo Idea need some help?

I want to get 3 flowers on my forearm to represent my grandmother, mother, and sister but what I need to know is there flowers that actually represent your mother grandmother and sister specifically? Even If i was to do it as a flower for youth for my sister etc. I need some help! Have looked around the internet and to be honest I dont know where to start! This will be my 6th tattoo but having trouble with it.