Mayapple

The stems grow to 30–40 cm tall, with 2 or occasionally 3 palmately lobed leaves up to 20–30 cm diameter with 5-9 deeply cut lobes on reproductive individuals, or one peltate (umbrella-like) leaf on sterile individuals. The single secund white flower 3–5 cm diameter, with six (rarely up to nine) petals, is produced at the axil of the two leaves (the upper two in a three-leaved plant); the flower matures into a yellow-greenish fruit 2–5 cm long. The plant is widespread and appears in clonal colonies in open mesic woodlands. Individual shoots are often connected by systems of thick tubers and rhizomes. (Wiki)