Merostachys rondoniensis

Description

HABIT Perennial;caespitose.Rhizomes short;pachymorph.Culms 15 mm diam.;woody.Culm-internodes terete;hollow;retrorsely scabrous.Culm-nodes swollen;brown;pubescent.Lateral branches dendroid.Branch complement many (27–30);flabellate.Culm-sheaths deciduous;12 cm long;2–3 times as long as wide;brown;pilose;setose on shoulders;shoulders with 5 mm long hairs.Culm-sheath ligule 1 mm high.Leaves 4–5 per branch.Leaf-sheaths tight;keeled;transversely wrinkled;glabrous on surface;outer margin hairy.Leaf-sheath oral hairs setose;spreading,or curly;7–8 mm long;dark.Ligule a ciliolate membrane;0.5 mm long.Collar with external ligule.Leaf-blade base with a brief petiole-like connection to sheath.Leaf-blades lanceolate;4–13.5 cm long;10–24 mm wide.Leaf-blade surface glabrous.Leaf-blade apex acuminate.