Karma Prospero Dahlia Tuber
The Karma series was bred for cutflower production. Karma Prospero specifically is a very beautiful blush/pink waterlily with exceptionally tall dark wiry stems. They're phenomenal in every way: form, stem length, vase life, percentage of usable blooms--all of it. Really really nice.
The blooms are 5-6 inches, and just gorgeous. I love the faint pin-striping on the petals.