EâZPass is an electronic toll collection system used on most tolled roads, bridges, and tunnels in the midwestern and northeastern United States, as far south as North Carolina and as far west as Illinois.
General Poisoning Notes: Blue flag (Iris versicolor) is a native herb found in eastern and central Canada. This plant has been mentioned as causing poisoning in humans and animals, but case reports have not been found. The plant juice can cause dermatitis in sensitive individuals. glycoside, iridin (or irisin), has been implicated as the toxic compound in iris species, although this has not been confirmed (Fyles 1920, Cooper and Johnson 1984).
Poisonous Iris Plant Parts. Yellow iris, known botanically as iris pseudacorus--or commonly as pale yellow iris or yellow flag--is a flowering plant whose internal liquids are a severe irritant to the skin, and whose underground rhizomes are highly poisonous and deadly to animals and humans if ingested.he chemical action of the toxic substance in yellow iris is not well understood, but thought to be iridin, according to a study by M.R. Cooper and A.W. Johnson entitled Poisonous Plants in Britain and Their Effects on Animals and Man..