Yellow Flag Iris
|  | ||
| Iris pseudacorus | ||
| Family Name: | Iridaceae | |
| Class: | C | |
| Other Names: | yellow iris | |
| Why is it a noxious weed? | Yellow flag iris is an invasive ornamental perennial that is a problem in many states and other countries. It will sicken livestock if ingested and is generally avoided by herbivores. Contact with its resins can cause skin irritation in humans. | |
| More Information: 
 
 
 | Visit Washington State Noxious Weed Control Board Here | 
