Mouse-ear Hawkweed flowers. Photo Credit: Janie Marlow, NameThatPlant.net, Bugwood.org
Photo Credit: Davide Nicholls, naturespot.org.uk
Mouse-ear hawkweed . 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.
For a more detailed description, download the Mouse-Ear Hawkweed Best Management Practices factsheet.
|Perennial (life cycle lasts more than one year)
|Early Detection and Rapid Response species:
|Up to 20 inches (51 centimeters) tall when flowering.
|Distinctive fuzzy leaves are dark green and oblong.
|Fruit & Flower Description:
|Yellow flowers grow on short, leafless stalks which are covered with stiff dark hairs. The underside of its petals often have a red stripe. The flowers and seeds resemble those of dandelions.
|June to August
How it spreads:
- Above-ground stolonsStolons A horizontal stem that runs along the ground and takes root at certain points to form new plants. form dense mats. Stolon fragments can grow into new plants and may be carried by equipment to new locations.
- Seeds disperse in the wind due to hairy appendages. Cars, equipment, clothes, and animal’s fur can also pick up seeds and distribute them to new areas.
- 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 along roads.
- It releases chemicals that prevent surrounding plants from growing.
- It produces thick mats that displace 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.
- Manual: 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.