Greek valerian Meaning, Definition & Usage
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noun erect or spreading perennial of the eastern United States
Polemonium reptans.
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noun pinnate-leaved European perennial having bright blue or white flowers
Polemonium caeruleum; Jacob's ladder; Polymonium caeruleum van-bruntiae; Polemonium van-bruntiae; charity.
WordNet
Definitions
(Bot.) , a plant (Polemonium cæruleum ) with blue or white flowers, and leaves resembling those of the officinal valerian.