Pilosella officinarum (Mouse Ear Hawkweed) is a species of perennial herb in the family Asteraceae. They are native to The Netherlands, Latvia, Belgium, Ireland, Portugal, Norway, Finland, Estonia, Romania, Yugoslavia, United Kingdom, Moldova, Azerbaijan, Lithuania, Germany, Switzerland, France, Belarus, Greece, Austria, Georgia, Armenia, Czech Republic, Hungary, Russia, Italy, Ukraine, Spain, Denmark, Bulgaria, Albania, Poland, and Sweden. They have achenes. Flowers are visited by Lasioglossum puncticolle, Euphydryas aurinia, Oedemera nobilis, and Sweat bee.
EOL has data for 22 attributes, including: