FIG. 32.3 Parasitic plants. (a) Mistletoe carries out photosynthesis, but relies on its host plant for water and nutrients. (b) Rafflesia, which produces the world’s largest flower, also obtains everything it needs from its host. (c) Cuscuta, or dodder, parasitizes the stems of many plants. It does not photosynthesize and instead receives everything it needs from its host.