Some unusual names (I agree with the above poster about the meaning of "unique," I see that mistake all. the. time. on message boards):
Sorry for repeats:
Acacia
Acantha
Alma
Amaryllis (I love the nickname Rilla!)
Aster
Astrid
Augusta
Aurelia
Aurora
Aviva
Briony/Bryony
Calanthe
Camila
Celia
Christabel (I think this looks nicer than 'Krystabelle' and is the version used in the poem)
Clementine
Cleone (pronounced Clee-oh-nee)
Coralie
Corisande
Dahlia
Dawn
Eliza
Faye
Fern
Hazel
Hyacinth
Ianthe (means "violet flower")
Iris
Isis
Jacinta
Jessamine
Jocasta
Laurel
Leila
Lilias/Lilia
Mariska
Melanthe
Nerissa
Olive
Phaedra
Rosalia
Rosamel
Sage
Sally
Selene
Sunniva (means "Sun gift")
Silvia/Sylvia
Tanith
Tess/Tessa
Thea
Verity