Lolium perenne (Perennial Ryegrass) is a species of perennial herb in the family true grasses. They have a self-supporting growth form. They are associated with freshwater habitat. They are native to Western North America. They have simple, broad leaves and yellow flowers. Flowers are visited by Scaeva pyrastri. Individuals can grow to 3.5 feet.
EOL has data for 88 attributes, including: