7. Hieracium Scabrum Michx. Rough Hawkweed

Fig. 4100

H. scabrum Michx. Fl. Bor. Am. 2: 86. 1803.

Stem stout, leafy, mostly hirsute or hispid below 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; pappus brown.

In dry woods and clearings, Nova Scotia to Minnesota, Georgia, Iowa, and recorded from Nebraska and Kansas. July-Sept.

7 Hieracium Scabrum Michx Rough Hawkweed 7717 Hieracium Scabrum Michx Rough Hawkweed 772

8. Hieracium Gronovii 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 glandular and canescent, slender; involucre about 4" high, somewhat canescent, its principal bracts in 1 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 Domingo. July-Sept. Cat's-ear.

9. Hieracium Marianum Willd. Maryland Hawkweed

Fig. 4102

H. 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, corymbose-paniculate, 6"-10" broad, 15-40-flowered, slender-peduncled; peduncles more or less glandular 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 columnar, truncate; pappus brown, not copious.

In dry woods and thickets, New Hampshire to southern New York, Pennsylvania, Ohio, Kentucky, Alabama and Florida. May-July.

Hieracium alleghaniense Britton, of the mountains of West Virginia, has the stem more abundantly leafy and no tuft of basal leaves at flowering time.

9 Hieracium Marianum Willd Maryland Hawkweed 773