Culms well separated from each other, 11-12 tall, 4.5-5 cm diam., thin-walled, often filled with water, rotting easily. Rhizomes to 3 m long, running near surface of the soil, with internodes 3-3.5 cm long, each with a thick primary root. Culm leaf: sheath brittle, bluish-green and covered with dark appressed hairs, becoming pinkish brown, then stramineous; blade erect, soon falling, bright green with a few hairs toward the base. Branching intravaginal from the upper nodes, with one branch per node, arching out and rebranching. Top of culm vinelike. Publicada en: Phytologia 51(2): 161. 1982.