What is "centauries"

Usage examples of "centauries".

Then he emerged and passed down the Garden pathways, through stands of juniper and hemlock onto a hillock of centauries and bluebells that reflected gold about the edges of their petals with the day's fading light.

Again in the case of all things which exhale from their body a pungent smell, all-heal, nauseous wormwood, strong-scented southernwood and the bitter centauries, any one of which, if you happen to [feel it] lightly between two [fingers, will impregnate them with a strong smell] * * but rather you are to know that idols of things wander about many in number in many ways, of no force, powerless to excite sense.