The term for a large tree often found in rainforests is a "megaflora" or simply "tropical tree." These trees can reach impressive heights and are characterized by broad canopies that provide shelter for a diverse range of species. Some notable examples of large rainforest trees include the kapok tree and the Brazil nut tree. These trees play crucial roles in their ecosystems, contributing to carbon storage and providing habitat for countless organisms, from birds to insects. Their massive sizes also mean that they can withstand heavy rainfall, which is common in rainforest climates.