Lesser celanine, (Ranunculus ficaria, syn. Ficaria grandiflora Robert Ficaria verna Huds.) is a low-growing, hairless perennial plant, with fleshy dark green, heart-shaped leaves. The plant is found throughout Europe and west Asia and is now introduced in North America. It prefers bare, damp ground and in the UK it is often a persistent garden weed.The flowers are yellow, turning white as they age.