Merostachys procerrima

Description

HABIT Perennial;caespitose.Rhizomes short;pachymorph.Culms leaning;300–400 cm long;15 mm diam.;woody.Culm-internodes terete;hollow;grey;antrorsely scabrous.Culm-nodes swollen.Lateral branches dendroid.Branch complement three,or several;flabellate.Culm-sheaths deciduous;18 cm long;3 times as long as wide;antrorsely scabrous.Culm-sheath blade lanceolate;deciduous;reflexed;6–7 cm long;7 mm wide.Leaves 3–8 per branch.Leaf-sheaths tight;without keel,or keeled.Leaf-sheath oral hairs setose;erect;10 mm long.Leaf-sheath auricles erect;3 mm long.Ligule a ciliolate membrane;0.5 mm long.Collar with external ligule.Leaf-blade base asymmetrical;with a brief petiole-like connection to sheath;petiole 0.7 cm long.Leaf-blades lanceolate,or oblong;7–20 cm long;22–30 mm wide;light green.Leaf-blade surface smooth;glabrous.Leaf-blade apex acuminate.