It sounds like you are describing the yellow flag iris (Iris pseudacorus). This plant has sword-like leaves that resemble lily blades and produces small yellow iris-like flowers. Yellow flag iris is commonly found near bodies of water like ponds, streams, and marshes.
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.
what does red flag means on wet ground
They have small linear leaves that are hairy and have succulent qualities (can contain water).
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 pseudacorus or yellow iris needs low Ph and lots of water.
No animals eat blue flag iris because it is toxic.
Yes the blue flag iris is a multi celled organism.
Iris pseudacorus or yellow iris is native to Europe, western Asia and northwest Africa.
No.
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.
It is Iris pseudacorus, a yellow wildflower.