Persicaria maculosa
From LSJ
κρειττότερον ἐστὶν εἰδέναι ἐν μέσῃ τῇ Πόλει φακιόλιον βασιλεῦον Τούρκου, ἢ καλύπτραν λατινικήν → I would rather see a Turkish turban in the midst of the City than the Latin mitre
Wikipedia EN
Persicaria maculosa (syn. Polygonum persicaria) is an annual plant in the buckwheat family, Polygonaceae. Common names include lady's thumb, spotted lady's thumb, Jesusplant, and redshank. It is widespread across Eurasia from Iceland south to Portugal and east to Japan. It is also present as an introduced and invasive species in North America, where it was first noted in the Great Lakes region in 1843 and has now spread through most of the continent.