Four-o'clock (Mirabilis jalapa) MG_9340

Four-o'clock (Mirabilis jalapa) MG_9340
Originally uploaded by Royjackward.

These delicate flowers close-up during the day and start opening at dusk. They rely on night insects, such as moths, to polinate them. The ones that are this purple/mauve colour have a halo of ultra-violet in the air around the petals. At first I thought it was just my eyesight playing tricks, but when I point it out, others can see it too. Not so easy to photograph however.