I agree with Swayback, I believe your plant is the
Tree Philodendron (Thaumatophyllum bipinnatifidum) P. lundii and P. selloum are synonyms.
At our rental house we have a bunch of them on the southeast side of the house growing beneath hickory and black cherry trees where they receive shade until the trees go bare in winter; and we have a single plant growing on the northwest side of the house that receives full direct sun year round. They've all been there for 38+ years and get knocked back by an occasional winter frost or freeze and in my opinion the ones in shade are prettier.
