Yellow, red, blue, black

A flower I should know the name of from my garden, but can't remember what it is now! This came from a cutting given to me by a friend, and I love the bold colours and the radial pattern. Tried to take it in the garden but the sun wasn't right so it wouldn't open! Picked it sat it in the sun in a blue bottle and this is the result.

I liked the bottle shadow reflection too.