No.
No animals eat blue flag iris because it is toxic.
Yes the blue flag iris is a multi celled organism.
The iris gets its nourishment from the soil. The water and organic matter in the soil along with sunlight allows the blue flag iris to make its food.
Some irises love water above their crown. This includes Iris fulva (red flag or copper iris), I. laevigata (rabbit-ear iris), I. prismatica (cube-seed iris), I. pseudacorus (yellow flag), I. versicolor (blue flag), I. virginica (southern blue flag), and the Louisiana irises. Other iris just like wet soil such as Iris ensata, the Siberian irises, I. missouriensis, and I. setosa.
There are many different types of iris.I. sibirica Siberian irisI. versacolor or blue flag irisI. pseudacorus or yellow irisI. germanica or bearded irisI. fulva or Louisiana iris
'Iris missouriensis' is the scientific name for 'wild blue iris'. Among its other common names are 'wild blue flag iris', 'Rocky Mountain iris', and 'blue flag iris'. But whatever the name by which it goes, this North American wildflower native is a cheery choice for landscaping artificial and natural water features; bare, disturbed, nutrient-challenged and open spaces; and such wetlands as moist meadows and swamps.
People can not eat iris. It has chemicals in the root and leaves that are toxic.
You plant it in fresh water soil.
No it is not endangered.
Quebec's flower is named the blue flag iris. It replaced the Madonna lily in 1999.
To be extremely basic, they are flowers. "The Yellow Flag Iris is a species of Iris, native to Europe, western Asia and northwest Africa.
Easter lilies are lilium longflorium. There is a blue flag iris.