λέμνα
From LSJ
πολλὰ τὰ δεινὰ κοὐδὲν ἀνθρώπου δεινότερον πέλει → many things are formidable, and none more formidable than man | wonders are many, and none is more wonderful than man | many things are bad, but nothing is more atrocious than man
English (LSJ)
ἡ, a water-plant,
A star-grass, Callitriche verna, Thphr.HP 4.10.1.