Mouse-ear Hawkweed flowers. Photo Credit: Janie Marlow, NameThatPlant.net, Bugwood.org
Mouse-ear Hawkweed plant. Photo Credit: Janie Marlow, NameThatPlant.net, Bugwood.org
Photo Credit: Janie Marlow, NameThatPlant.net, Bugwood.org
Mouse-ear Hawkweed seeds. Photo Credit: Janie Marlow, NameThatPlant.net, Bugwood.org
Also known as: Mouseear hawkweed
Mouse-ear hawkweed is a low growing perennial with distinctive fuzzy leaves. While more common in Western Washington state, one infestation has been identified in neighboring Yamhill County.
|Life Cycle:||Perennial (life cycle lasts more than one year)|
|Early Detection and Rapid Response species:||Yes|
|Height:||3 to 10 inches (7 to 25 centimeters)|
|Leaf Description:||Distinctive fuzzy leaves that grow along stolonsStolons A horizontal stem that runs along the ground and takes root at certain points to form new plants.. Leaves are dark green and oblong-shaped.|
|Fruit & Flower Description:||Yellowish-white flowers are produced on short, leafless stalks which are covered with stiff dark hairs. The flowers and seeds resemble those of dandelions.|
|Bloom Time:||May to June|
- Mouse-ear hawkweed does not grow well in shady conditions.
- It prefers to grow in open grassy areas such as fields, meadows, pastures, forest clearings, and roadsides.
- It produces thick mats that prevent other plants from establishing or surviving.
- It displaces desirable pasture species and thrives in over-grazed pastures.
What you can do about it:
- If you think you’ve found mouse-ear hawkweed anywhere in Oregon, please report it to the Oregon Invasive Species Hotline.
- Do not mow mouse-ear hawkweed flowers, this only stimulates the plant to re-grow.
- If there are only a few plants, hand digging is an effective option, but the entire plant must be removed. Once removed, throw away the plant parts in a plastic bag in the trash— not your yard waste bin or home compost.
Dandelions (Taraxacum officinale) produce similar looking flowers to mouse-ear hawkweed. Dandelions leaves are more deeply cut and do not have fuzzy leaves.
Noxious Weed Listing:
|State of Oregon:||Class A|
|State of Washington:||Class B|
Download the Mouse-ear Hawkweed Best Management Practices Factsheet
- Pacific Northwest Weed Management Handbook: Mouseear hawkweed
- University of California, Weed Research & Information Center: Hawkweeds