Propagation of Jojoba (Simmondsia chinensis Schneid.) by Tip Cuttings

摘要

Jojoba (Simmondsia chinensis Link, Schneid.) is an arid zone shrub that is native to the Sonoran Desert of Arizona, California, and northern Mexico (Gentry, 1958) The species is an extreme xerophyte and follows the flowering pattern of a number of desert species in that it is dioecious and wind pollinated. The taxonomic position of the species is obscure. The species was originally placed in the family Buxaceae but has now been transferred to the monospecific family Simmondsaceae and there is some debate about the likely evolutionary history of the plant. The inappropriate specific name (chinensis) is a result of a mix up in the labeling of collection boxes from an expedition that visited both Western U.S.A. and China during the 19th century.