Vol. III.] 



CHICORY FAMILY 



7. Hieracium venosum L. Rattlesnake- 

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

 Hieracium venosum L. Sp. PI. 800. 1753. 



Stems solitary or several from the same root, slender, 

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

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

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

 spreading on the ground, obovate, oval or obloug-spatu- 

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

 petioled, i/-4' long, y&'-iyi' wide, usually purple- 

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

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

 broad, 15-40-flowered, slender-peduncled; peduncles 

 glabrous, or slightly glandular; involucre about 3" high, 

 its principal bracts in 1 series, glabrous or nearly so, 

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

 cate; pappus brown, not copious. 



Dry woods and thickets, Maine to Ontario and Manitoba, 

 south to Georgia, Kentucky and Nebraska. Ascends to 4200 

 ft. in North Carolina. Called also Early or Vein-leaf 

 Hawkweed, Striped Bloodwort, Snake Plantain and Hawkbit 



May-Oet. 



8. Hieracium Marianum Willd. 

 Maryland Hawkweed. (Fig. 3568.) 



H. Marianum Willd. Sp. PL 3: 1572. 1804. 



Stems usually solitary, slender, pilose-pu- 

 bescent, at least below, paniculately 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, 

 d n -\o" broad, 15-40-flowered, slender-pedun- 

 cled; peduncles more or less glandular and 

 sometimes canescent; involucre about \" high, 

 its principal bracts in 1 series.linear-lanceolate, 

 acute, or acuminate, glabrous or nearly so, with 

 a few short outer ones; achenes columnar,trun- 

 cate; pappus brown, not copious. 



In dry woods and thickets, Rhode Island to 

 southern New York, Pennsylvania, Kentucky, 

 Alabama and Florida. May-July. 



9. Hieracium Greenii Porter and Britton. 

 Green's Hawkweed. (Fig. 3569.) 



Pilosella spathulata Sch. Bip. Flora, 45: 439. 1862. 



Not Hieracium spathulatum Scheele, 1863. 

 Hieracium Marianum var. spathulatum A. Gray, Syn. 



Fl. 1: Part 2, 446. 1886. 

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



1893. 



Stem entirely glabrous up to the branches, 

 rather slender, leafless or rarely with 1 or 2 leaves. 

 ij -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'-i' wide; heads corymbose-paniculate, sev- 

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

 cled, 8 // -io // broad; peduncles and branches canes- 

 cent-tomentose and glandular; involucre 5" high, 

 its principal bracts in 1 series, linear, acute, densely 

 pilose-glandular; flowers bright yellow 7 ; achenes 

 columnar^ truncate; pappus brownish, not copious. 



In dry soil, mountains of Pennsylvania to Virginia 

 and West Virginia. May-June. 



