Erythronium revolutum is a species of flowering plant in the family Liliaceae which is known by several common names, including mahogany fawn lily, coast fawn lily, and pink fawn lily. It is native to the west coast of North America.

Erythronium revolutum, a hardy perennial wildflower, grows from an oval-shaped bulb 3-5 cm (1-2 in) long, producing usually two wide, flat, mottled green leaves near the ground. It is indigenous to Northwest Washington.

The plant flowers between March and June. Each bulb sends up a long, naked stalk bearing one or two showy lily flowers. The stalk bows at the end so that the face of the flower points at the ground. The sepals may be straight or recurved so far that their tips meet behind the flower; they tend to recurve further as the flower ages. The anthers are bright yellow.

Erythronium revolutum can be distinguished from related species by its pink flowers, though it will sometimes create white flowers, swollen anther filaments and mottled leaves. The fruit is a capsule up to 6 cm (2 in) long.

The plant is found in moist places such as streambanks, bogs, and wet redwood and mixed evergreen forest understory. These habitats are threatened in the wild and in addition, E. revolutum may be threatened by collection for horticulture and soil compaction by forestry machinery.

Erythronium revolutum is cultivated as an ornamental plant, for use in traditional and natural gardens. Its combination of attractively patterned leaves and graceful flowers in mid spring make it a desirable plant. It should be planted in a shady spot (ideally beneath deciduous trees or shrubs) in humus-rich soil that does not dry out and is rather damp in spring. It will naturalize over time by self-seeding, though as seedlings take several years to reach flowering size this can be a slow process.

This plant has gained the Royal Horticultural Society's Award of Garden Merit.

Type: Hardy perennial

Height: 25 cm, 10"

Location: Shade or part shade

Hardiness zones: 3-8

Bloom time: Spring

Seeds per packet: 20