Yellow
Wood poppy
Stylophorum diphyllum
Also known as celandine poppy, in the spring, this plant yields mounds of bright yellow flowers in the woodland. All your neighbors will ask ‘What’s that beautiful yellow flower?”. A small pair of leaves at the base of each flower stalk gives this plant the species name diphyllum, with ‘di’ meaning two and ‘phyllum’ meaning leaves. When temperatures warm in mid-summer, cut the foliage to the ground to get a fresh flush of growth and sporadic blooms through the fall.