Lilium occidentale is a rare North American species of lily known by the common name western lily. It is native to northwestern California and southwestern Oregon. It grows in coastal prairie habitat, swamps and stagnant bogs with Drosera species, bluffs and sandy cliffs, and seaside spruce forests. This rare wildflower is limited in distribution and directly endangered by a number of environmental factors. It is a federally listed endangered species and it is listed as endangered by the states of California and Oregon. Lilium occidentale is a perennial herb sometimes exceeding two meters in height. It grows from a scaly, elongated bulb which may be nearly 10 centimeters long. The leaves grow in a series of whorls around the stem. They may be linear to oval in shape and over 20 centimeters long. The inflorescence bears up to 35 showy nodding lily flowers. The flower has 6 recurved tepals each up to 8 centimeters long, sometimes curled back into complete rings. The tepals are usually red to orange to yellow-green, generally bicolored with more red on the inside and more greenish yellow on the outer surfaces. They are often spotted. There are six stamens with large red anthers up to 1. 4 centimeters long, and a pistil which may be more than 5 centimeters in length. The flower is pollinated chiefly by hummingbirds, including Allen's hummingbird (Selasphorus sasin).