Among the waters of the Fountain of Arethusa you can spot the papyrus plant: an aquatic plant that comes from Egypt.
Papyrus plants have a thin, hard and woody stem. Inflorescences with a radius from 10 to 30 centimetres stick out from the stems, carrying strawcoloured spikes.
If you pass your hand over the dense plant, these numerous threadlike branches appear soft and feathery.