Could this even be Xerxes's beloved plane tree, mio Platano amato, lauded by the emperor in the opening aria of Handel's opera Serse?
Ombra mai fu
di vegetabile,
cara ed amabile,
soave piĆ¹.
(never was there shade from a plant so dear and lovable, or gentle)
Obviously no real connection, but for those who enjoy coincidences there is a CD version of this arranged for violin and orchestra, available on Marco Polo, Naxos's full-price record label!