Euphorbia dentata
From Illinois Wildflowers
This plant is a summer annual that branches sparingly to occasionally; it is ¾–2' tall. The leaf margins are coarsely dentate. The leaf bases are wedge-shaped, while their tips are bluntly acute to acute. The foliage of this plant exudes a white milky sap when it becomes damaged. There is no noticeable floral scent. After blooming, the pistillate flowers are replaced with 3-lobed nodding fruits that span about 4-5 mm. across. There is no noticeable floral scent. After blooming, the pistillate flowers are replaced with 3-lobed nodding fruits that span about 4-5 mm. across. There is no noticeable floral scent. After blooming, the pistillate flowers are replaced with 3-lobed nodding fruits that span about 4-5 mm. across.