Hello, It's my fisrt post in this forum. I hope that I do well. Somebody knows this tropical plant (Amazonian Peru), a poaceae? Thank you. Best regards Alltair.
Yup. That's either Chusquea or Neurolepis - if you'd had a chance to cut the stalk, it would be easy to tell which. Chusquea is hollow, and Neurolepis is solid.