Parallel
Mark 4:31
Patriarchal Greek New Testament (1904) · Berean Standard Bible
ὡς κόκκον σινάπεως, ὃς ὅταν σπαρῇ ἐπὶ τῆς γῆς, μικρότερος πάντων τῶν σπερμάτων ἐστὶ τῶν ἐπὶ τῆς γῆς·
It is like a mustard seed, which is the smallest of all seeds sown upon the earth.