Tripidium ravennae

Tripidium ravennae (syn. Saccharum ravennae, Erianthus ravennae), known as ravenna grass or hardy pampas grass, is a large, robust perennial grass of the Poaceae native to the Mediterranean basin and adjacent western Asia. The plant forms dense, fountain-like clumps of long, narrow, blue-green leaf blades arising from a stout rhizomatous base; mature foliage typically reaches 1 to 1.5 m, while flowering culms tower to 3 to 4 m. The leaves have a conspicuous white midrib and roughened margins. Inflorescences are large, plumose, silvery to purplish silky panicles 30 to 60 cm long, appearing in late summer and persisting through autumn. It grows in moist sandy or alluvial soils along riverbanks, ditches, and marshy ground, and is widely cultivated as an ornamental.