A Newly Naturalized Species in Taiwan: Phytolacca icosandra L. (Phytolaccaceae)

Phytolacca icosandra L. (Phytolaccaceae), native to the South America has been found recently in central Taiwan. This newly naturalized species is distinguished by its erect spike-like racemes and 12–20 stamens. This paper describes the morphology of the species and provides line drawing and photographs for identification.