Field Sagewort

Artemisia forwoodii S. Wats. Proc. Am. Acad. 25: 133. 1890
Artemisia deserlorum Hookeriana Besser; Hook. Fl. Bor. Am. 1: 325, at least in part. 1833. Artemisia commulala Hookeriana Besser, Bull. Soc. Nat. Mosc. 8: 70. 1835. Artemisia caudata calvens LuneW, Am. Midi. Na.1. 2: 188. 1912.
A strict biennial, with a taproot; stem 4-7 dm. high, somewhat pubescent when young, glabrous in age; basal leaves 5-10 cm. long, petioled, bior tri-pinnatifid into narrowly linear divisions, loosely silky-canescent at least when young; stem-leaves numerous, often fascicled, mostly sessile, pinnatifid into linear-filiform divisions, silky-canescent, or in age glabrate; heads numerous in a dense panicle, mostly erect, heterogamous; peduncles 1-2 cm. long; involucre subglobose, 2-2.5 mm. high, 2.5-3 mm. broad; bracts 12-15, in 3-4 series, the outermost lanceolate or ovate, acute, half as long as the innermost ones; innermost bracts oval, obtuse or acutish, broadly scarious-margined; ray-flowers 15-20; corollas l.S mm. long; achenes 0.7 mm. long; disk-flowers 10-15; corollas 2 mm. long; style fully 1.5 mm. long.
Type tjycMATv: Black Hills of South Dakota.
DisrKiuuTio.v: Ontario and Michigan to Saskatchewan and Nebraska; Washington.

Artemisia caudata Michx. Fl. Bor. Am. 2 : 129. 1803
Artemisia variabilis americana Besser, Bull. Soc. Nat. Mosc. 8: 24. 1835.
A biennial; stem 3-10 dm. high, grooved, glabrous, often piu-plish; basal leaves petioled, about 1 cm. long, bipinnatifid into linear divisions, glabrous or somewhat long-hairy when yoimg; stem-leaves sessile, pinnatifid into 7-11 Imear-filiform divisions about 1 mm. wide; heads very numerous, erect or rarely nodding, in a dense leafy panicle, heterogamous; involucre hemispheric to campanulate, 3-4 mm. high, 3 mm. broad; bracts glabrous, about 15, in 3-4 series, scarious-margined, the outer ovate, acute, about half as long as the inner oval acutish or obtusish ones; ray-flowers 6-8; corollas 1.5 mm. long; achenes nearly 1 mm. long; diskflowers 10-15; corollas cylindro-cainpanulate, 2 mm. long, purplish, glabrous, obtuse at the base; style 1.5 mm. long, slightly thicker above.
Type locality: Banks of the Missouri River [Missoun?].
Distribution: New Brunswick and Maine to North Dakota. Wyoming, Texas, and Florida.