Philodendron joepii (pronounced you-pee-eye) is named after the Dutch botanist Joep Moonen. It is a rare, tri-lobed, pointy-leaved green philodendron that is said to be almost extinct in the wild and up until very recently was also extremely rare in cultivation. Luckily these plants have become such a hit with aroid collectors due to their unique leaf shape that they are (sliiiiightly) easier to come by these days! They are definitely still considered very rare collector plants, and they still fetch a pretty penny.
This plant has leaves that have to be seen to be believed, so I added a picture of a mature joepii looks like next to the picture of the actual plant we have on offer.
Care is similar to all other philodendrons - all it plenty of gentle bright light, and allow to approach dry between waterings.