I can't really say but I will give tu my opinion. I don't think he had any inspiration for making any of the flowers. When he started escritura the script in 1994, I think he was más concentrated on the plot and the characters then the flowers. He probably just had a team of artists that worked together on designing the flowers.
posted hace más de un año
I read somewhere that Cameron himself remember the colorful and interesting plants he saw once while scuba diving. And like tu say, probably had artists diseño them from there.