Ranunculus Occidentalis, commonly known as Western Buttercup, is a beautiful flowering plant that belongs to the Ranunculaceae family. It is found in the Western United States and Canada, and is known for its bright yellow petals and delicate appearance. Although it is commonly known as Western Buttercup, it has several other synonyms as well, such as Thunderbird Flower, Gateway Buttercup, and Hillside Buttercup. These synonyms may be used interchangeably with the official name and help in identifying this beautiful flower. Other variations of the plant include the Ranunculus Lyallii, Ranunculus Alismifolius, and Ranunculus Cymbalaria - all equally stunning in their own way.