This genus of architectural perennials was only discovered in 1954. They produce long-lasting, open umbels of green bract flowers, which are tinted pink as they age.
There is just one known species, from the mountainous regions of Mexico. A single superior cultivar of this species was launched in 2007 and is now becoming more common in cultivation.
They are happy in sun or part-shade and require a fertile, moist, but free-draining soil. Winter wet will not be tolerated and some protection may be required in colder areas.