About Euphorbia dentata Michx.
Euphorbia dentata Michx. is a spurge species with the common names toothed spurge and green poinsettia. It is native to parts of North America and South America, and also grows in other areas of these continents; its true native range is not certain. It is classified as a noxious weed in some regions.
This plant is a hairy annual herb. It grows an erect or somewhat erect stem that reaches 20 to 50 centimeters in height. Its leaves are hairy, pointed, a few centimeters long, range from widely to narrowly lance-shaped, and are generally toothed. Inflorescences grow at the tips of branches, and hold cream or yellowish male (staminate) and female (pistillate) flowers that are only a few millimeters wide. The fruit is a lobed capsule, spherical or heart-shaped, that is about half a centimeter wide, and holds three bumpy, rounded seeds.