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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
Habitats
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
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