Celandine Poppy

Stylophorum diphyllum

Common Name: Celandine poppy (a.k.a. wood poppy, yellow poppy)
Scientific Name: Stylophorum diphyllum
Family: Papaveraceae
Growth Form: Herb
Native Range: Indeterminate:  some consider it of European origin, while others think it is native to the Southern United States
Invasive Range: Northeastern United States
Introduction: Because the origin of the celandine poppy is unknown, its introduction cannot be determined.  It is currently sold as an ornamental plant.  It propagates by seed. 
Description: ·Leaves: Blue-green.  Many rounded pinnate lobes.  10-25 cm (4-10 in.) long.  Wavy margins.  Arise basally.     

·Stem: Can grow 30-40 cm (12-18 in.) tall.  Bright yellow sap when broken.

·Flowers: Yellow, cup-shaped, 4 petals, 5 cm (2 in.) in diameter.  One pistil, numerous stamens.   Present May through June.

·Fruit: Silver seedpod.  Bristly. Ovate.  Many seeds.
Threats: The celandine poppy does not cause harm in areas where it has naturalized. It is generally thought to be an aesthetically pleasing addition to many landscapes.
Fun Facts: Celandine, an herbal medicine made from the celandine poppy is used to treat stomach, liver, and gallbladder problems.  Native Americans used the sap to make yellow dye. 
Growth habit
Broken leaf, showing sap