Iris (genus)
Warnings: Many plants in this genus are thought to be poisonous if ingested, so caution is advised. An arrow poison was made from the ground up roots. Plants can cause skin irritations and allergies in some people.
Iris is a genus of flowering plants comprised of approximately 300 species and tens of thousands of varieties, usually growing from creeping rhizomes or bulbs (in dry climates). They get their name from the Ancient Greek goddess of the rainbow, which was believed to be the messenger between heaven and earth. Today they are considered a romantic flower that symbolizes faith, hope and wisdom, and the birth flower of February. The French fleur-de-lis was inspired by the Iris. Iris species can be found growing wild mainly in temperate Northern hemisphere zones across Europe, Asia and North America, though they are also extensively cultivated for their beauty and given as cut flowers. They are also sometimes used in water purification (especially yellow iris, I. pseudacorus), as they are able to use the nutrient pollutants and grow aggressively in waterways (which also make them a noxious weed in some areas).
The Iris flower essence is indicated for those wanting to deepen their spirituality or creativity. For artists, it is often used for those with a block of some sort, such as feeling embarrassed, self-criticism, or feeling artistically unfulfilled. For deepening spirituality, it is best for those wishing to deepen their connection, unlock their doors of perception or are just embarking on a spiritual path such as meditation. There are other edible and medicinal uses depending on species, but generally they are emetic and at least slightly poisonous. There are some scientific studies progressing on the bioactive uses of Iris, such as a recent study that examined Iris schachtii and the various constituents present with biological activity, such as apigenin, luteolin, kaempferol, and extracts with high anti-lipase activity and high inhibition on alpha-glucosidase activity. (Source)