Chimonobambusa marmorea

Long-rhizomatous, thicket-forming perennial; culms erect, to 3 m  high, 5–15 mm diam.; culm-internodes terete with relatively narrow central hollow. Culm-leaves with sheaths persistent, conspicuously mottled, minutely hairy toward base, blades of culm-leaves not developed. Branch leaves usually 3–7 per branch; sheaths minutely fringed near apex; blades linear-lanceolate, 8–17 cm long, c. 10 mm wide with evident cross-veins, attachment to sheath thickened, petiole-like, usually with a few bristles to c. 5 mm long on either side; ligule firmly membranous, minutely cilate, c. 0.5 mm long, a short dorsal collar ('external ligule') usually detectable. Spikelets sessile, 4–7-flowered, 20–40 mm long; glumes 6–8 mm long, 5-nerved; lemma 6–7 mm long, 5–7-nerved; palea equal to lemma.