Passage 2.10.6
ἔνεστι δὲ ὁ παιδέρως ἐν ὑπαίθρῳ τοῦ περιβόλου πόα, φύεται δὲ ἀλλαχόθι οὐδαμοῦ γῆς, οὔτε ἄλλης οὔτε τῆς Σικυωνίας. τὰ δέ οἱ φύλλα ἐλάσσονα ἢ φηγοῦ, μείζονα δέ ἐστιν ἢ πρίνου, σχῆμα δέ σφισιν οἷον τοῖς τῆς δρυός· καὶ τὸ μὲν ὑπομελαίνει, τὸ δὲ ἕτερον λευκόν ἐστι· φύλλοις δʼ ἂν λεύκης μάλιστα εἰκάζοις τὴν χροιάν.
The paideros grows in the open air within the enclosure; it is a plant found nowhere else on earth, neither elsewhere nor in any other part of Sicyonia. Its leaves are smaller than those of the oak, but larger than those of the holm oak, and in shape resemble oak leaves. One side of the leaf is somewhat dark, the other side white; the color could best be likened to that of poplar leaves.