Philodendron's a large genus of flowering plants in the Araceae family, consisting of close to 900 or more species according to TROPICOS (a service of the Missouri Botanical Garden). Other sources quote different numbers of species. According to S.J. Mayo there're about 400 formally recognized species whereas according to Croat there're about 700. Whichever the exact number of species, the genus's the second largest member of the arum family. Taxonomically the genus Philodendron's still poorly… (More on Philodendron)