Stems: Erect, smooth, branched at the top, normally 1-2 feet tall.
Leaves: Alternate, narrow, length 1 to 4 inches
Seed: Born in exploding capsules that can expel seed to 15 feet, longevity 5 to 8 years.
Flowers: yellowish-green to yellowish-orange surrounded by yellow-green bracts.
Origin: Eurasia, thought to have entered the USA as a crop seed contaminant.
Poisoning: Milky latex sap throughout the plant may cause dermatitis on human skin. Toxic to cattle, sheep and goats do not seem to be affected.