πολύγονον
From LSJ
βορβόρῳ δ' ὕδωρ λαμπρὸν μιαίνων οὔποθ' εὑρήσεις ποτόν → once limpid waters are stained with mud, you'll never find a drink
English (LSJ)
τό A, πολύγονον ἄρρεν = knotgrass, knot-grass, Polygonum aviculare, prostrate knotweed, birdweed, pigweed, lowgrass, Dsc.4.4; in Ep. form πουλύγονον, Nic.Al.264. 2 πολύγονον θῆλυ = mare's tail, Hippuris vulgaris, Dsc.4.5.
German (Pape)
[Seite 661] τό, ein Kraut, ἄῤῥεν, polygonum, θῆλυ, equisetum, Diosc.
Greek (Liddell-Scott)
πολύγονον: τό, βοτάνη τις, π. ἄρρεν, Polygonum aviculare, π. θῆλυ, ἴσως Hippuris vulgaris, Διοσκ. 4. 4 κἑξ., ἔνθα ἴδε Sprengel.