This is a night flowering plant originating from the Peruvian Andes mountain chain - although this picture was taken on my vacation in Ukraine.

Mirabilis Jalapa in daylight.
Flowers on the same plant may have different colours and single flowers may also show different colours.

Mirabilis Jalapa flowering at nighttime.
The picture above shows the beautiful variagated petals, however for a "Four o'clock" flower its not very punctual - it was pitch black by the time the first flowers began to open.
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