Dandelion coffee want to stop their standard medicine and take [dandelion tea] instead because of these really unfounded claims. They can die if they do that." — Dr. Caroline Hamm Unroasted "Taraxacum officinale" (among other dandelion species) root contains: Dandelion coffee Dandelion 'coffee' (also dandelion tea) is herbal tea used as a coffee substitute, made from the root of the dandelion plant. The roasted dandelion root pieces and the beverage have some resemblance to coffee in appearance and taste. Susanna Moodie explained how to prepare dandelion 'coffee' in her memoir of living in Canada, "Roughing it in the Bush" (1852), where she
Iris setosa "Iris setosa" are poisonous. The rhizome contains iridin which is an oleoresin. This substance can affect the liver and digestive organs. It can cause allergic reactions such as severe rashes. It can also cause vomiting or diarrhea. It was used in an ingredient in a poison to put on arrowheads. Although the plant is poisonous, its starchy roots can be made safe for human consumption via cooking. It is cultivated in Japan for its edible root. The Aleut also made a drink from the roots, to be used as a laxative, but the Iñupiat considered the whole plant poisonous. It