Narenga phphyrocomaGrass Species / By Rajaji NP Narenga phphyrocoma (Narenga) Culm solid, about 1 cm in diameter, tall reed, up to 2 m tall. Blade about 12 mm wide; ligule tongue-shaped, about 4 mm long, ciliate. Inflorescence an oblong panicle, up to 20 cm long, margins membranous and folded.