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Iris pseudacorus
Yellow flag
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Latin Name: Iris pseudacorus
Common Name: Yellow flag
Family: Iridaceae(Click to Search)
Author: L.
Known Hazards: Many plants in this genus are thought to be poisonous if ingested, so caution is advised[65]. The roots and leaves are toxic to animals, including humans[13, 62, 65].
Plants can cause skin irritations and allergies in some people[238].
Habitat: Damp marshy areas and shallow water[17], often in shade[4].
Mature Height: 1.5
Mature Width: 2
Habit: Perennial
General Uses: A beautiful yellow dye is obtained from the flowers[4].
A good black dye is obtained from the root if it is mixed with iron sulphate[4, 115]. It is brown otherwise[141].
The root is a source of tannin[61] and has been used in making ink[4].
A delicately scented essential oil, obtained from the roots, has been used to adulterate the oil of Acorus calamus[245].
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