Lindsey, sorry I didn't phrase that well. I didn't mean your specific plant but the species in general.
The species entry is here:
Horsehead Philodendron (Philodendron bipennifolium)
I doubt the panda and splash Gordon names are genuinely patented cultivars, just common names, all the exact same plant. The golden/lime colored one is different, and the variegated. Can anyone find any documentation of those 2 names being cultivars?