Bambusa xiashanensis

Description

Perennial;caespitose.Rhizomes short;pachymorph.Culms erect;nodding at the tip;1200–1300 cm long;45–55 mm diam.;woody;with aerial roots from the nodes,or with root thorns from the nodes.Culm-internodes terete;with small lumen;35–44 cm long;distally glabrous.Lateral branches dendroid.Buds or branches present on lower quarter of culm.Branch complement several;with 1 branch dominant.Culm-sheaths deciduous;hispid;hairy at the base;with appressed hairs;with tawny hairs;convex at apex;auriculate;with unequal auricles;with 15 mm wide auricles;setose on shoulders.Culm-sheath ligule 7 mm high;dentate,or ciliolate.Culm-sheath blade ovate,or triangular;erect.Leaves cauline.Ligule an eciliate membrane.Collar with external ligule.Leaf-blade base with a brief petiole-like connection to sheath.Leaf-blades lanceolate;10–20 cm long;15–20 mm wide.Leaf-blade surface pubescent;densely hairy;hairy abaxially.Leaf-blade margins scabrous.Leaf-blade apex acuminate.