缅甸竹 mian dian zhu

Culms 7–8 m, 2.5–3.5 cm in diam., subsolid; internodes green, ca. 30 cm, initially sparsely brown strigose, yellow and glabrous when old; nodes slightly prominent, with rings of gray-white or yellow-white silky hairs below and above sheath scar, several basal nodes with short aerial roots. Culm sheaths deciduous, short, broad, height more than 1/2 of basal width, both surfaces distally with erect or appressed, stiff, brown hairs, apex slightly asymmetrical, arched; auricles unequal, slightly wrinkled; larger auricle slightly slanted downward to 1/5 of sheath height, oblong to oblong-lanceolate, 3–3.5 × ca. 1 cm, ends extending outside sheath margin, smaller auricle elliptic, ca. 1 × 0.8 cm; oral setae well developed; ligule ca. 3.5 mm, finely serrulate, very shortly ciliolate; blade erect, slightly asymmetrical, triangular-ovate, base cordate and joined with auricles for ca. 1 cm, ca. 5/7 width of sheath apex, adaxially with pale stiff hairs between veins, apex sharply pointed. Leaf blade linear-lanceolate, 16–25 × 1.5–3 cm, abaxially glaucous, densely pubescent, adaxially glabrous. Inflorescence unknown.

Yunnan [Malaysia, Myanmar, Thailand].

The Chinese material included here is possibly distinct from true Bambusa burmanica.