In South Africa there a certain kind of tree, the vachellia xanthophloea (xanthophloea refers to the yellow bark). Now I know that the common name, fever tree, stems from the fact that they were first found in malaria infected areas but you can always see a fever tree from afar – the bark stands out and the stem and the branches look as if they were glowing from the inside.

I’ve never seen a specimen in Germany but in the right light a poplar can look luminous, too.

The Ragtag Daily Prompt: Luminous