curlycup gumweed: perennial gumweed of western and central North America
gumweed: any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock
russian roulette: a stunt in which you spin the cylinder of a revolver that is loaded with only one bullet and then point the muzzle at your head and pull the trigger