The Mary Tree from Heliopolis (or Der Marienbaum von Matarije, or L’arbre de Marie de Matarije) is an old sycamore tree
that is believed to have existed in the first century, and under which the Holy Family rested during its sojourn in Egypt.
https://copticliterature.wordpress.com/2019/09/07/the-mary-tree-in-heliopolis-by-the-german-painter-friedrich-perlberg/ dr. π (pi)
.