Vol. III.] 



CHICORY FAMILY 



7. Hieracium venosum I^. Rattlesnake- 

 weed. Poor Robin's Plantain. (Fig. 3567.) 



Hieracium venostim L. Sp. PI. 800. 1753. 



Stems solitary or several from the same root, sleuder, 

 glabrous, or with a few hispid hairs near the base, or 

 also above, leafless or with 1-3 leaves, pauiculatcly 

 branched above, i°-3° high. Basal leaves tufted, 

 spreading on the ground, obovatc, oval oroblong-spatu- 

 late, mostly obtuse, narrowed at the base, sessile or 

 petioled, i'-4' long, '/i'-iji' wide, usually purple- 

 veined, more or less hirsute, some or all of them glan- 

 dular-denticulate; heads commonly numerous, 5"-8" 

 broad, i5-4oflo\vered, slender-pcduncled; peduncles 

 glabrous.orslightlyglandular;iuvolucrcabout3"high, 

 its principal bracts in i series, glabrous or nearly so, 

 with a few short outer ones; achencs columnar, trun- 

 cate; pappus brown, not copious. 



Dry woods and thickets, Maine to Ontario and Manitoba, 

 south to Georgia, Kentucky and Nebraska. Ascends to -1200 

 It. in North Carolina. Called also Karly or Vein-leaf 

 Hawkweed. Striped Bloodwort, Snake Plantain and Hawkbit. May-Oct. 



8. Hieracium Marianum 



Willd. 

 3568.) 

 1804. 



Maryland Hawkweed. (Fig. 



//. Marianum Willd. Sp. PI. 3: 1572. 



Stems usually solitary, slender, pilose-pu- 

 bescent, at least below, pauiculately branched 

 above, 2°-3° high, bearing 2-7 leaves. Basal 

 leaves obovate or oblong, ascending or erect, 

 obtuse, narrowed at the base, sessile or peti- 

 oled, villous or hirsute, glandular-denticulate, 

 2'-S' long, i'-2' wide, not purple-veined, 

 those of the stem similar, smaller; heads 

 commonly numerous, corymbose-paniculate, 

 6"-io" broad, 15-40-flowered, slender-pedun- 

 cled; peduncles more or less glandular and 

 sometimes canescent; involucre about 4" high, 

 its principal bracts in i series,linear-lanceolate, 

 acute, or acuminate, glabrous or nearly so, with 

 a few short outer ones; achenescolumnar,lrun- 

 cate; pappus brown, not copious. 



In dry woods and thickets, Rhode Island to 

 southern New York, Pennsylvania, Kentucky, 

 Alabama and Florida. May-July. 



g. Hieracium Greenii Porter and Britton. 

 Green's Hawkweed. (Fig. 3569.) 



Pilosdla spalhulala Sch. Bip. Flora, 45: 439. 1862. 



Not Hieracium spalhiilatum Scheele, 1863. 

 Hieracium Marianum var. spatliulatum A. Gray, Syn. 



Fl. I- Part 2, 446. 1S86. 

 //. Greenii Porter and Britton, Bull. Torr. Club, 20: 120. 



1893. 



Stem entirely glabrous up to the branches, 

 rather slender, leafless or rarely with i or 2 leaves. 

 i>^°-2j<° high. Basal leaves tufted, ascending, 

 spatulate, oblong, or obovate, obtuse, narrowed at 

 the base, mostly petioled, glandular-denticulate or 

 entire, villous-pubescent or somewhat hispid, 4'-7' 

 long, Yz'-z' wide; heads corymbose-paniculate, sev- 

 eral or numerous, 30-40-flowered, slender-pedun- 

 cled, S"-io" broad; peduncles and branches caues- 

 cent-tomentose and glandular; involucre 5" high, 

 its principal bracts in i series, linear, acute, densely 

 pilose-glandular; flowers bright yellow; achenes 

 columnar, truncate; pappus brownish, not copious. 



In dry soil, mountains of Pennsylvania to Virginia 

 and West Virginia. May-June. 



