This beautiful white flower is often called the Mount Cook lily. However, it is actually a member of the buttercup family (Ranunculus lyalli). Endemic to the South Island of New Zealand, it is found in the alpine zone between 700 to 1500 m above sea level. Plants grow up to a metre in height and have waterlily–like leaves, hence the frequent misnaming. Flowering occurs in late spring and early summer, with flowers reaching 5-8 cm in diameter, making it the world’s largest buttercup species.