i think she chose peeta because of pita bread, which i think is cute and smart of her. and gale is a type of bird, kinda goes along with the theme. and katniss, maybe that was a flower close to her in some way.

i have to admit, Haymitch? i don't know where she got thaat one from. i said that name to my friend and said i would name my son that. she said she would name her's Strawmitch. haha.

peeta coz she loved the name. gale coz she wanted someone 2 puke on, katniss for a reason(IDK) rue coz she loved her 2.

Another name for the katniss flower is something like sagittaria, so it ties into her archery skill. I assumed Peeta was meant to be some futuristic development of the name Peter.