Mouseear hawkweed
Prepared by Jennifer L. D’Appollonio, Assistant Scientist, University of Maine, Orono, ME 04469. March 2011.
Scientific name: Hieracium pilosella L.
Common name(s): mouseear hawkweed
Link(s): USDA PLANTS Profile
Images: (to see enlargements [PC]: click on image, then right click and choose “view image”)
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- flowering, mid-June
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- flowerheads usually solitary
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- sometimes 2 flowerheads
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- leaves in basal rosette
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- upper leaf surface
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- lower leaf surface white-woolly
Description:
-perennial
-leaves are
- simple
- alternate
- basal
-considered noxious in some states
-generally flowers May to July in ME
-generally fruits July, August in ME
Habitat:
-can establish in low nutrient and over grazed sites
-disturbed sites
-meadows and fields
Natural History:
-native to Europe
-introduced to eastern and northwestern North America
Source(s):
Hansen, R.W., S.B. Hansen and E.A. Osgood. 1991. Reproductive phenologies of selected flowering plants in eastern Maine forests. ME Agric. Exp. Station Tech. Bull. 143. 17 pp.
Heinrich, B. 1976. Flowering phenologies: Bog, woodland, and disturbed habitats. Ecology. 57(5):890-899.
Go Botany. “Hieracium Pilosella L.” Hieracium Pilosella (Mouse-Ear Hawkweed): Go Botany, 2021, gobotany.nativeplanttrust.org/species/hieracium/pilosella/.