Boloquoy won - we just like the name!
And here is the text for this splendid plant
The belief that this pretty perennial infests cattle and sheep with lice and liver fluke has been prevalent for centuries – hence its unfortunate name. Indeed recognition of this supposed ability no doubt accounts for the first part of its Latin name which means louse. The case for spreading lice is not proven but transmission of liver-flukes is possible. The plant succeeds in the poorest of wet and heathy soils; any browsing animals that have been sentenced to find nutrition in such conditions are in all probability likely to struggle and be susceptible to the water-borne liver-fluke embryos. Much better press is forthcoming from the