Checklist » Asteraceae » Hieracium pilosella
Last updated 5/6/2004 by Peter F. Zika.
Hieracium pilosella L.[FNA19, HC, HC2]
mouse ear hawkweed

Publication: Sp. Pl. 2: 800. 1753.

Origin: Introduced from Europe

selected vouchers: NWCB

Notes: Recently collected in Thurston Co. NWCB = herbarium of WA State Noxious Weed Control Board, Kent.

References:

» Bishop, G. F., and A. J. Davy. 1994. Hieracium pilosella L. (Pilosella officinarum F. Schultz & Schultz-Bip.). J. Ecol. 82: 195-210.
» Roche, C. 1992. Mouse-ear hawkweed (Hieracium pilosella L.). PNW Cooperative Extension Publ. PNW409. Washington State Univ., Pullman.
Synonyms & Misapplied Names:
Hieracium pilosella L. var. nivea Muell.Arg.[KZ99]
Hieracium pilosella L. var. pilosella[KZ99]
Pilosella officinarum F.W. Schultz & Sch. Bip.