**5.2.2 Arundinoideae Burmeist**

Arundinoideae comprises two species, *Arundo donax* and *Phragmites australis*; both species are tall reeds of wet places. *Phragmites australis* is a weed of rice fields (Matthei, 1995); *A. donax* is sometimes cultivated as ornamental.

Systematic Diversity of the Family Poaceae (Gramineae) in Chile 89

Fig. 5. Collection effort and species richness of Poaceae in the fifteen Chilean political

regions. Each point represents at least one specimen.
