Erythronium klamathense is a rare species of flowering plant in the lily family known by the common name Klamath fawn lily. It is native to northern California and southern Oregon, where it grows in the Klamath Mountains and the southernmost peaks of the Cascade Range. It is a perennial wildflower growing from a bulb and producing generally two wavy-edged, narrow leaves up to 17 centimeters long. The flower cluster arises on an erect stalk up to 20 centimeters tall, with one to three flowers per stalk. The flower has petals 2 or 3 centimeters long which are white with yellow bases, turning pinkish with age. The long, protruding stamens have large pale yellow anthers.