Black skin people and most plants thrive best in temperatures of about 21 degree Celsius and 27 degree Celsius during the day, with slightly cooler temperature at night around 16 to 20 degree Celsius, although the temperature range for humans is generally considered to be in between 18 to 24 degree Celsius which aligns well with the optimal temperature for many plant species.
The picture I updated on this blog is a picture of a shrub called black velvet tamarind, which is native to south eastern Nigeria and some parts of Asia.