βορβόρῳ δ' ὕδωρ λαμπρὸν μιαίνων οὔποθ' εὑρήσεις ποτόν → once limpid waters are stained with mud, you'll never find a drink
See heather.
open country: P. and V. πεδίον, τό, V. πλάξ, ἡ.