The Heartleaf Philodendron has heart shaped leaves, just like the common name says. The longest I’ve seen the trails on this one is about 5 or 6′. It has thinner stems, grows flatter and is less robust than the Pothos. It’s not as widely sold as the Pothos but is popular nonetheless. You can find it in a few variegated forms but will also revert to solid green in lowest light.