Dreaming in Latin binomials

Plant systematics midterm tomorrow, and last night a yarrow plant the size of a person sat on the end of my dorm bed and said, very slowly, 'Achillea. Millefolium.' Then it said it again in case I wasn't listening.

I've been making flashcards for two weeks and apparently my brain has converted them all into houseguests. Pretty sure this is either studying working or a visitation from the entire Asteraceae family. Either way, I am not getting that one wrong.