purpleinopp said:MOBOT strikes again.
Searching MOBOT for Philodendron bipennifolium gets zero results http://www.missouribotanicalga...
For their P. bipinnatifidum listing, at the top of the page they show a common name of Horsehead Philodendron and farther down the page under Noteworthy Characteristics, they show common names of Tree Philodendron and Split Leaf Philodendron.
Goes to show how common names cause so much confusion! The leaf shape of Tree Philodendron (Thaumatophyllum bipinnatifidum)
in no way resembles a horses head.