Philodendron barrosoanumPhilodendron barrosoanum at a glance: Philodendron barrosoanum is a rare South American climber with elongated trilobed leaves that become more dramatic as the plant climbs and matures. The shape is narrower and more stretched than many lobed philodendrons, which gives it a recognisable silhouette even before it grows large. It benefits from a pole or trellis early on, because vertical growth helps the leaves lengthen properly and keeps the stem from