When I was in high school, I was looking through an online name dictionary for a name for a character in a story; it was defined as "white rose." At first she was just a foster child that climbed trees, caught lizards, and read books. She "grew up" into a woman with a green mohawk who worked in a plant nursery.
So, it was only natural that in WoW, she manifested as a troll herbalist.
Sevti was my main raiding in BC, and my guild called me "Sev" for short. All my alts on that server since have had the same prefix. I'd probably respond to it IRL at this point :P