GENUS 22. CHICORY FAMILY. 331 
7- Hieracium scabrum Michx. Rough 
Hawkweed. Fig. 4100. 
H. scabrum Michx. Fl. Bor. Am. 2: 86. 1803. 
Stem stout, leafy, mostly hirsute or hispid be- 
low and glandular-pubescent above, strict, 1°-4° 
high. Leaves hirsute, obovate, oblong, or broadly 
spatulate, 2’-4’ long, 1’-2’ wide, obtuse at the apex, 
narrowed to the sessile base or the lowest into 
margined petioles, denticulate; no tuft of basal 
leaves at flowering time; heads usually numerous, 
6-8” broad, corymbose-: or racemose-paniculate ; 
peduncles stout, densely glandular; involucre 4”-5” 
high, glandular, its principal bracts in 1 series, 
linear, acute with a few very small outer ones; 
flowers yellow; achenes columnar, truncate; pap- 
pus brown. 
In dry woods and clearings, Nova Scotia to Minne- 
sota, Georgia, Iowa, and recorded from Nebraska and 
Kansas. July—Sept. 
8. Hieracium Grondévii L. Gronovius’ or 
Hairy Hawkweed. Fig. 4101. 
Hieracium Gronovii L. Sp. Pl. 802. 1753. 
Stem stiff, mostly slender, leafy and villous or 
hirsute, at least below, sometimes nearly leafless, 
1°-3° high. Leaves villous or hirsute, the basal 
and lower ones obovate or spatulate, denticulate 
or entire, obtuse, 2’-6’ long, usually narrowed into 
petioles; stem leaves mostly sessile, oblong or oval, 
obtuse or acute, narrowed or broad at the base, 
the upper gradually smaller; heads numerous, 
racemose-paniculate, 5”-8” broad; peduncles glan- 
dular and canescent, slender; involucre about 4” 
high, somewhat canescent, its principal bracts in I 
series, linear-lanceolate, acute, with several very 
small outer ones; flowers yellow; achenes spindle- 
shaped, with a tapering summit; pappus brown. 
In dry soil, Massachusetts to Ontario, Illinois, 
Kansas, Florida, Louisiana and Texas. Santo Do- 
mingo. July—Sept. Cat’s-ear. 
g. Hieracium marianum Willd. Mary- 
land Hawkweed. Fig. 4102. 
HA. marianum Willd. Sp. Pl. 3: 1572. 1804. 
Stems usually solitary, slender, pilose-pubescent, 
at least below, paniculately branched above, 2°-3° 
high, bearing 2-7 leaves. Basal leaves obovate, 
oblanceolate or oblong, ascending or erect, obtuse, 
narrowed at the base, sessile or petioled, hirsute, 
at least on the veins beneath, entire or glandular- 
denticulate, 2’-8’ long, 1’~2’ wide, not purple-veined, 
mostly glabrous above, those of the stem similar, 
mostly smaller; heads commonly numerous, co- 
rymbose-paniculate, 6’—10” broad, 15-40-flowered, 
slender-peduncled; peduncles more or less glan- 
dular and sometimes canescent; involucre about 
4” high, its principal bracts in 1 series, linear- 
lanceolate, acute, or acuminate, glabrous or nearly 
so, with a few short outer ones; achenes col- 
umnar, truncate; pappus brown, not copious. 
In dry woods and thickets, New Hampshire to 
aamthern New York, Pennsylvania, Ohio, De eatieleys AK 
Alabama and Florida. May-July. 6 : 
Hieracium alleghaniénse Britton, of the mountains of West Virginia, has the stem more 
abundantly leafy and no tuft of basal leaves at flowering time. 
