贵州刚竹 gui zhou gang zhu

Culms to 10 m, ca. 8 cm in diam.; internodes initially green, becoming gray-green, 30–40 cm, white powdery below nodes at maturity, sparsely setulose and slightly scabrous; nodal ridge rather flat at lower nodes, prominent at upper ones. Culm sheaths purple-green, with purple streaks, unmarked, sparsely brown strigose; auricles purple, small in basal sheaths, falcate and ca. 1 cm in upper ones; oral setae sparse, purple; ligule purple, gently arcuate or truncate, ca. 2 mm, white ciliate; blade erect to horizontal, purple-brown with green streaks, narrowly triangular to linear. Leaves 2 per ultimate branch; sheath glabrous; oral setae deciduous, erect; blade 8–11 × 1–1.6 cm. Inflorescence not known. New shoots May.

* Cultivated on stream banks; 1400–1500 m. Guizhou.

The culms are used as building materials and in making bamboo articles.