Buttercup -

: A popular children's game involves holding a buttercup under your chin; if it reflects yellow, it "proves" you like butter. 2. Buttercup (The Powerpuff Girls)

: Despite their cheerful appearance, all parts of the buttercup are toxic . The plant contains a compound that causes blistering and mouth irritation in humans and livestock. Buttercup

The Beauty Of Buttercups - Poison, Ancient Medicine & Folklore : A popular children's game involves holding a

The most common buttercups are members of the Ranunculus genus, known for their brilliant, waxy yellow petals. if it reflects yellow

: Their unique "mirror-like" gloss comes from a thin layer of air just beneath the surface cells that reflects light. This helps the flower stay warm by reflecting sunlight toward its reproductive organs.