This particular plant is unknown it came from my bosses wife, she didnt know what it was either. I received it last fall and planted the rhizome. Now the leaves have a sticky coating like someone sprayed them with honey. I noticed this a couple weeks ago before it started to flower. I cant seem to find what this means on the internet or here. My wife thinks that its a natural defense. I would buy it there are a couple aphids stuck to it and dead along with a bunch of pollen. Im not too worried about it, the plant is on the other side of the yard by itself. Any info would be greatly appreciated. Thanks