Platanus orientalis, the oriental planetree, is one of the trio of trees that is used to line most of the streets of Paris (the others being the linden and the horsechestnut). According to the documentation, the specimen to the left was planted in 1785. There were others of a similar vintage.
(And speaking of relying on a small number of species . . in the gardens at Versailles were thousands and thousands of mature lindens planted in perfect rows extending literally for miles. What will happen when the emerald linden beetle or Dutch linden disease finds its way to that country . . ?)
The extensive and historic herbaceous display gardens in the park were grouped by plant family. I counted 17 species of Carex and of course a million members of the mint family. Ive never seen Plantago lanceolata or Rhamus frangula (labeled there as Frangula dodonei, but now listed as Frangula alnus in Michigan Flora -- woo!) tended so lovingly. You can read more by clicking the link immediately below!