C16: New Latin, from Medieval Latin: garden valerian, from Latin potēns powerful, potent 1
Examples from the Web for potentilla
Do you think they are men that you bring them potentilla roots?The Myths of the North American Indians
Potentilla anserina was very plentiful, and remarkably luxuriant.Western Himalaya and Tibet
Now the potentilla shows us, as it were, the primitive form of the strawberry.The Evolutionist at Large
This was surrounded by a high wall, and in it the charming Potentilla was imprisoned.
You may imagine how Potentilla lamented her sad fate, and entreated to be spared.