Heart-leaf philodendron is a familiar trailing houseplant. Its glossy, heart-shaped leaves grow along slender vines that can climb or hang from a basket. It is also called sweetheart plant.
Check new growth: heart-leaf philodendron has a separate papery sheath beside a new leaf. Golden pothos (Epipremnum aureum) lacks that obvious free sheath and has a groove along the leaf stalk.
Why they get mixed upBoth trail from pots and have glossy, somewhat heart-shaped leaves.