Metrosideros said:Looks like the common Mussaenda erythrophylla.
LOL! That phrasing sounds funny to me. It's not common in my part of Texas. I've never seen it growing except for the one time in Costa Rica. When I've traveled to warmer, wetter climates I have found Bougainvilla to be commonly grown. But everything follows behind Lantana. I've never traveled anywhere that didn't have a spot of it growing somewhere. I think I was most surprised to see it growing in a street median in Cairo. In your location, I'm sure it may be common. You get to see a lot of beautiful tropical plants, I expect.