Conium maculatum Conium maculatum Conium maculatum, the hemlock or poison hemlock, is a highly poisonous biennial herbaceous flowering plant in the carrot family Apiaceae, native to Europe and North Africa. A hardy plant capable of living in a variety of environments, hemlock is widely naturalized in locations outside its native range. "Conium maculatum" is known by several common names. In addition to the English hemlock, the Australian carrot fern and the Irish devil's bread or devil's porridge, the following names are also used: poison parsley, spotted corobane and spotted hemlock. The plant should not be confused with the coniferous tree "Tsuga", also
Poison "gu" poison. Poison was also employed in gunpowder warfare. For example, the 14th-century Chinese text of the "Huolongjing" written by Jiao Yu outlined the use of a poisonous gunpowder mixture to fill cast iron grenade bombs. The term "poison" is also used in a figurative sense. The "[s]lang sense of "alcoholic drink" [is] first attested 1805, American English." (e.g., a bartender might ask a customer "what's your poison?") Figurative use of the term dates from the late 15th century. Figuratively referring to persons as poison dates from 1910. The figurative term "poison-pen letter" became well known in "...1913 by a