Although she's not listed, Daisy is in the pool (and presumably Iris and Anthurium as well).

My rolls:
Step 1: Kikyo Bellflower
Step 2: Jasmine
Step 3: Violetta Tulip #12
Step 4: Yulan
Step 5: Strawberry Candle (new)
Step 6: Daisy (the rainbow I wanted most)

I also did a single roll on the player's gacha again for kicks, and got Rose.

Today is a good day.