glyceria maxima, commonly known as great manna grass, reed mannagrass, reed sweet-grass, and greater sweet-grass is rhizomatous

grass reed mannagrass perennial glyceria greater rhizomatous grasses native commonly genus europe manna great maxima green flora summer water nature natural plant autumn sweetgrass rural scene color freshness flower rice paddy beauty closeup tree cereal backgrounds outdoors farm agriculture environment growth forest blue day botany season leaf spring yellow outdoor