A low plant. Leaves. - From the root, long-stalked, parted into two rounded leaflets. Scape. - One-flowered. Flower. - White, one inch broad. Sepals. - Four, falling early. Petals. - Eight; flat, oblong. Stamens. - Eight. Pistil. - One, with a two-lobed stigma.

The twin-leaf is often found growing with the blood-root in the woods of April or May. It abounds somewhat west and southward.