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
Silphium (genus) Silphium (genus) Silphium is a genus of North American plants in the sunflower tribe within the daisy family. Members of the genus, commonly known as rosinweeds, are herbaceous perennial plants growing to to more than tall, with yellow (rarely white) flowerheads that resemble sunflowers. In the rosinweeds, the outer florets in the head are fertile and the inner florets are sterile; in the sunflowers, the reverse is true. The name of the genus comes from the Ancient Greek word for a North African plant whose identity has been lost, though it is known its gum or juice was prized by