[Euphorbia geniculata Ortega, more]
Etymology: Euphorbia: for Euphorbus, corpulent Greek physician of Juba II, King of Mauretania. Juba, educated in Rome, and married to daughter of Antony and Cleopatra. From eu, "good" and phorbe, "pasture or fodder," thus giving euphorbos the meaning "well fed."
Plants: erect, annual, up to 40" tall forb, usually branched, mostly hairless
Leaves: mostly alternate; vary from linear to wide, with lobes or teeth
Flowers: green; arranged in a terminal cluster surrounded by mostly lobed leaves with white or red bases
Fruits: 3-lobed, smooth capsule
Habitat: shade to partial shade; moist
Conservation Status: Native