Aulonemia radiata

About

Quixiume is a genus of bamboo in the grass family. It includes a single species, Quixiume radiata, which is endemic to southern and southeastern Brazil. It is native to the mountains, including the Serra do Mar, Serra da Mantiqueira, and Serra do Espinhaço, of Santa Catarina, Paraná, São Paulo, Rio de Janeiro, and Minas Gerais states. It grows in dense ombrophilous forest, mixed ombrophilous forest, and montane shrublands from 900 and 2000 meters elevation. The southernmost populations in Santa Caterina and Paraná are mostly from 800 to 1000 meters elevation, while the northern populations are mostly above 1500 metres elevation.

Summary from Wikipedia