L. AUTUMNÀLIS, L. (FALL DANDELION.) Leaves laciniate-toothed or pinnatifid, somewhat pubescent; scape branched, 5--15´ high; peduncles thickened at the summit, scaly-bracteate.--Meadows and roadsides; N. Eng. to Penn. June--Nov. (Nat. from Eu.) 88. PÍCRIS, L. Heads many-flowered, terminating leafy stems. Outer scales loose or spreading. Achenes terete, with 5--10 rugose ribs; pappus of 1 or 2 rows of plumose bristles.--Coarse rough-bristly annuals or biennials, with yellow flowers. (The Greek name of some allied bitter herb, from πικρός, _bitter_.) P. HIERACIOÌDES, L. Rather tall, corymbosely branched, the bristles somewhat barbed at tip; leaves lanceolate or broader, clasping, irregularly toothed; achenes oblong, with little or no beak.--Sparingly introduced. (Nat. from Eu.) 89. HIERÀCIUM, Tourn. HAWKWEED. Heads 12--many-flowered. Involucre more or less imbricated. Achenes short, oblong or columnar, striate, not beaked; pappus a single row of tawny and fragile capillary rough bristles.--Hispid or hirsute and often glandular perennials, with entire or toothed leaves, and single or panicled heads of mostly yellow flowers; summer and early autumn. (Name from ἱέραξ, _a hawk_.) § 1. _Involucre not much imbricate, scarcely calyculate; achenes oblong; pappus not copious._ H. AURANTÌACUM, L. Low, long-hirsute, above hispid and glandular, the involucral hairs dark; leaves all near the base of the simple peduncle; heads clustered; flowers deep orange to flame-color.--Roadsides and fields; N. Eng. to N. Y. (Nat. from Eu.) H. PRÆÁLTUM, Vill. Glaucous, 2° high, only the base and lanceolate leaves hairy; heads in an open cyme; flowers yellow.--N. New York (_Ward_). (Nat. from Eu.) § 2. _Heads large; involucre irregularly imbricated; achenes columnar; pappus copious, unequal._ H. MURÒRUM, L. Stem scape-like, low; leaves oval or oblong, obtuse, toothed toward the subcordate base; heads few, dark-glandular.--Open woods near Brooklyn, N. Y. (Nat. from Eu.) 1. H. Canadénse, Michx. Stems simple, leafy, corymbed at the summit (1--3° high); leaves sessile, lanceolate or ovate-oblong, acute, remotely and very coarsely toothed, somewhat hairy, the uppermost slightly clasping.--Dry woods, N. Eng. to Penn., Minn., and northward. § 3. _Heads small; involucre cylindrical, scarcely imbricated._ [*] _Achenes columnar, not attenuate upward when mature; panicle not virgate._ 2. H. paniculàtum, L. _Stem slender, leafy, diffusely branched_, hairy only below (1--3° high); leaves lanceolate, acute at both ends, slightly toothed, smooth; _heads_ (very small) _in a loose panicle_, on slender and diverging pedicels, _12--20-flowered; achenes short_.--Open woods; rather common.