1. T. Huronénse, Nutt. Hairy or woolly when young, stout (1–3° high); lobes of the leaves oblong; heads large (½–{2/3}´ wide) and usually few; pistillate flowers flattened, 3–5-cleft; pappus toothed.—St. John's River, Maine (G. L. Goodale), shores of the upper Great Lakes, and westward.
71. ARTEMÍSIA, L. Wormwood.
Heads discoid, few–many-flowered; flowers all tubular, the marginal ones pistillate, or sometimes all similar and perfect. Involucre imbricated, dry and scarious. Receptacle small and flattish, naked. Achenes obovoid, with a small summit and no pappus.—Herbs or shrubby plants, bitter and aromatic, with small commonly nodding heads in panicled spikes or racemes; flowering in summer. Corolla yellow or purplish. (Ancient name of the Mugwort, in memory of Artemisia, wife of Mausolus.)
§ 1. Receptacle smooth; marginal flowers pistillate and fertile; disk-flowers perfect but sterile, the style mostly entire; root perennial, except in n. 1.
[*] Leaves dissected.
1. A. caudàta, Michx. Smooth (2–5° high); upper leaves pinnately, the lower 2–3-pinnately divided; the divisions thread-form, diverging; heads small, the racemes in a wand-like elongated panicle; root biennial.—Sandy soil, coast of N. H. to Va.; also Mich. to Minn., and southward.
2. A. Canadénsis, Michx. Smooth, or hoary with silky down (1–2° high); lower leaves twice-pinnately divided, the upper 3–7-divided, the divisions linear, rather rigid; heads rather large, in panicled racemes.—Northern N. Eng. to the Great Lakes, Minn., and northward. (Eu.)
[*][*] Leaves entire or some 3-cleft.
3. A. dracunculoìdes, Pursh. Tall (2–5°), somewhat woody at base, slightly hoary or glabrous; leaves linear and entire or the lower 3-cleft; heads small and numerous, panicled.—Sandy banks of streams, Minn. to Ill., Mo., and westward.
4. A. glaùca, Pall. Strict, 1–2° high, somewhat woody at base, minutely silky-pubescent or glabrate; leaves linear- to oblong-lanceolate; heads as in the last.—Sask. to Minn. (Sib.)