greek valerian

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Noun greek valerian has 2 senses

Greek valerian, Polemonium reptans - erect or spreading perennial of the eastern United States
--₁ is a kind of polemonium
Jacob's ladder, Greek valerian, charity, Polemonium caeruleum, Polemonium van-bruntiae, Polymonium caeruleum van-bruntiae - pinnate-leaved European perennial having bright blue or white flowers
--₂ is a kind of polemonium