PEPSI COLA FLOWER?

My regular florist, Brother Lek told me the name of this plant was Pepsi Cola Flower.  Huh?  I thought to myself, "Is he trying to be funny?"  But then I guessed he was not as he said it in earnest.
I bought this plant along with a few others for the Herb Garden and it was while I was looking at the flower again at night that I realised that it was the flower of the Pasiflora or Passion Fruit plant.  Most probably Brother Lek who is Chinese educated was told that the flower was Pasiflora but he heard it to be Pepsi Cola.  Hahaha.