It's got to be skunk cabbage, I suppose?

Hakurei Illusion as in, Spirit Sign "Hakurei Illusion," a spellcard from PoFV

Umebitan

You see,

I'm thinking about what kind of flowers match with you. Dialogue from Phantasmagoria of Flower View

There is somebody I can't help but be reminded of,

whenever I see you.

All scarlet-and-white and happy-go-lucky. Also PoFV dialogue