Greek valerian, n.
pinnate-leaved European perennial having bright blue or white flowers
<noun.plant>
Greek valerian Jacob's ladder Polemonium caeruleum Polemonium van-bruntiae Polymonium caeruleum van-bruntiae charity
semantic pointers
hypernym
erect or spreading perennial of the eastern United States
<noun.plant>
Greek valerian Polemonium reptans
semantic pointers
hypernym