Vibrant orange

IMG_5722I saw this flower a few years back in a pot in the spring on the street. Vibrantly orange. I search my mind for the name of the flower but only find an impression it should start on an p in Swedish. I may be wrong about that and it will surely come to me later.
In response to The Daily Post’s weekly photo challenge: Vibrant

Update: 2016-02-01 Many thanks to Leya for finding the name for the flower for me. It is a ranunculus.