I've always wondered about the flowers Jayce brought for Caitlyn when he visited her in season 1
I've never seen anything confirming or explaining what type of flower they are
It's completely possible they're a fictional species made up for Arcane, but the closest real-world match I could find was this:
White geraniums/pelargoniums. They look pretty similar, from the petal shapes to the stamen, and of course the colour
If they are, then it makes a lot of sense why Jayce brought them for her considering their symbolism. White geraniums are said to represent spiritual cleansing; they evoke the restoration of peace, bring protection and emotional balance, ward off negativity, etc etc... lots of connotations of healing. So, considering he's visiting her after she got injured, I think that's pretty sweet and definitely a deliberate choice
It really shows how much he cares about her, especially considering that Caitlyn herself is the one with a suggested interest in flowers. He probably learned about them from her - he listens, and he remembers.
And, if you wanna get a little bit insane, Caitlyn throwing them on the floor to lead Jayce over to her conspiracy board foreshadows her neglecting her healing journey for the sake of her hyperfixation on closing the case in season 2