GENUS 22. CHICORY FAMILY. 333 
13. Hieracium Pilosélla L. Mouse-ear Hawk- 
weed. Fig. 4106. 
Hieracium Pilosella L. Sp. Pl. 800. 1753. 
Hieracium Pilosella peleterianum Mer. Nowv. Fl. Paris, Ed. 
2, 230. 1821. 
Stoloniferous, pilose-pubescent throughout; stolons 
leafy, rooting, slender, 3’-12’ long. Scape slender, 
erect, 4-15’ high, leafless, with a single head, or some- 
times 2-4; leaves oblong or spatulate, entire, obtuse or 
acutish at the apex, narrowed into petioles, often white- 
tomentose beneath, 14’-3’ long, 4’-8” wide; head 1’ 
broad or more; flowers yellow; principal bracts of the 
involucre in I or 2 series, linear, acuminate, pubescent, 
usually with 1 or 2 exterior ones; achenes oblong, trun- 
cate; pappus a single row of slender bristles. 
Dooryards and fields, Prince Edward Island to Ontario, 
New York, Pennsylvania and Michigan. Adventive from 
Europes Ling-gowans. Felon-herb. Mouse-bloodwort. May- 
ept. 
lpi + 1 
yal CTR TT Tet RTT 
14. Hieracium floribindum Wimm. & 
Grab. Smoothish Hawkweed. 
Fig. 4107. 
Hieracum floribundum Wimm. & Grab. Fl. Siles. 2?: 
204. 1829. 
‘s 
Stoloniferous; plant glaucous-green; scape 
loosely hirsute and more or less glandular- 
pubescent, slender, 1°-23° high, the stolons some- 
times 8° long. Basal leaves tufted, narrowly 
oblanceolate, acutish or obtuse, 2’-6’ long, gla- 
brous or very nearly so above, the margins and 
midvein beneath more or less hirsute; stem- 
leaves none, or rarely I or 2 near the base; 
flowers several, 1’ broad or less, corymbose; 
peduncles glandular; rays bright yellow; bracts 
of the involucre in about 2 series, hirsute. 
In fields, New Brunswick and Maine to New York. 
Naturalized from Europe. June—Aug. 
15. Hieracium praténse Tausch. Fieid 
Hawkweed. Fig. 4108. 
Hi. pratense Tausch, Flora 11: Part 1, Erg. 56. 1828. 
Stoloniferous, hirsute or pilose with long hairs, 
those of the stem blackish. Stem scapose, simple, 
1°-2° high, often bearing 1 or 2 leaves below the 
middle; basal leaves numerous, tufted, light green, 
oblanceolate to oblong, obtuse, 2’-5’ long, 5’’-10” 
wide, narrowed into margined petioles, or to a 
sessile base, entire, or with few distant minute 
glandular teeth, hirsute on both sides; heads 
several or numerous, corymbose-paniculate, 10” 
wide, or less; flowers yellow; peduncles glandular 
and often tomentose; bracts of the involucre | 
linear-lanceolate, acuminate, glandular and pilose; 
achenes columnar, truncate. 
Fields and roadsides, Quebec to southern New 
York and Pennsylvania. Naturalized or adventive 
from Europe. 
