As an example of the second reason (misidentification), plants are sometimes brought into cultivation, propagated, and widely distributed under an incorrect name. By the time the misidentification can be rectified, the incorrect name may already be in widespread use. Name changes of this type are apparent in two widely cultivated trees from eastern Australia. King palm (Archontophoenix cunninghamiana) was for a long time incorrectly sold as Seaforthia elegans, which is an altogether different species of palm not regularly found in cultivation. Australian brush cherry (Syzygium australe) has for years been sold under the erroneous name of Syzygium paniculatum, which is actually a rare species, also from eastern Australia but only occasionally found in cultivation - See more at: http://www.pacifichorticulture.org/articles/why-plant-names-change-2/#sthash.XccfZ9aJ.dpuf