Hieracium pilosella mouse-ear hawkweed Asteraceae HIPI*; Q, cu (Greller 1985); R (DeCandido 2001);

Hieracium pilosella.Arthur Haines.gobotany.newenglandwild.org

Hieracium pilosella.Arthur Haines.gobotany.newenglandwild.org. (Accessed 4/2014).

Hieracium pilosella is a perennial herb, sap milky, rhizomatous, mat-forming colonial from thread-like, leafy stolons, stem 3-25 cm tall, sticky, blackish-hairy, also with long hairs. 

Leaves of basal rosette 2-13 cm long, 0.6-2 cm wide, widest above middle (oblanceolate), green, with long hairs above, tan or white wooly below, especially when young, flowering stem leafless or 1 small leaf. 

Flowers yellow, all rays, heads usually single, bracteate base 0.7-1 cm tall, black-hairy; blooms and fruits May-Sept. 

Fruit dry, 1-seeded achenes, about 0.2 cm long, plumed. 

Wetland status: UPL. 

Frequency in NYC: Very infrequent 

Origin: Europe. 

Habitat: Weed of open areas, lawns, roadsides.