the mom....?

in this movie, Jane's mom isn't credited on this list (as far as i can see). I think she looks like Kathy Baker - whom I only know from Edward Scissorhands, but it doesn't list this movie as one of hers on her IMDb profile. any info on it?

Now I've got to try to grow more middle fingers. There are only two...There'll be more coming.-Johnny Depp