Chusquea

Chusquea is a genus of evergreen bamboos in the grass family. Most of them are native to mountain habitats in Latin America, from Mexico to southern Chile and Argentina. 
They are sometimes referred to as South American mountain bamboos. Unlike most other grasses, the stems of these species are solid, not hollow. Some animals are associated with stands of "Chusquea", for example the Inca wren and the plushcap.
Notable species.
"Chusquea culeou", the colihue cane, from southern Chile and western Argentina, is notable as the most frost-tolerant South American bamboo and the only one that has been grown successfully to any extent in the temperate Northern Hemisphere, with successful growth as an ornamental plant north to Scotland. The colihue cane was used by the Mapuches Indians to make instruments and as lances during the War of Arauco.
"Chusquea quila" (in Spanish "quila"), in contrast to Colihue, has a spreading or vining growth. It prefers wet places and does not grow above , where "C. coleou" becomes more dominant. "Chusquea quila" can form pure stands called "quilantales". Very few plants can grow under this species.
Taxonomy.
The genus "Chusquea" now includes species formerly classified in "Dendragrostis", "Rettbergia," "Swallenochloa", and "Neurolepis." The genus has been organized into three subgenera, subg. "Rettbergia", subg. "Swallenochloa" and subg. "Chusquea", although molecular evidence only supports a monophyletic subg. "Rettbergia".