Order your FREE wildfire preparedness kit today! Order Now>>>

Volunteer with us at community events! Sign up here>>>

Mouse-Ear Hawkweed

Pilosella officinarum

Plant Description

A low-growing perennial with yellow-white dandelion-like flowers and leafless stalks covered in stiff hairs. (Also known as Hieracium pilosella.)

Plant Details

Life Forms
ODA Listing
Soil and Moisture Conditions
Suggested Actions
Shade Preference
Mature Height 3-10"
Distribution Found in North East and North West US. Very limited distribution in Oregon's Willamette Valley.
Control Do not mow. Hand dig if only a few plants. Fertilize the soil to help keep mouse ear hawkweed from establishing in lawns or pastures.
Disposal Methods Seal plant material in a plastic bag and throw away in the trash.
Reproduction and Spread Spreads by stolons that form dense mats and by wind-borne seeds.
Introduced Introduced from Europe to US as an ornamental or agricultural seed contaminant.
Look Alikes dandelions; other nonnative yellow flowered hawkweeds- they hybridize and are difficult to tell apart.
Impact Produces thick mats of rosettes that prevent other plants from establishing. Reduces desirable pasture forage production.
More Info
© Marion Soil and Water Conservation District. All Rights Reserved.