Field Sagewort

Artemisia borealis Pall. Reise 3 : 755. 1776
Artemisia violacea Ledeb. Mem. Acad. St.-Petersb. 5: 567. 1815. Artemisia borealis Wormskjoldii Besser; Hook. Fl. Bor. Am. 1: 327. 1833. Artemisia borealis Ledebouri Besser, Bull. Soc. Nat. Mosc. 8: 85. 1835. Artemisia borealis Pallasii Besser, Bull. Soc. Nat. Mosc. 8: 87. 1835. Artemisia camtschatica Schlecht. ; Ledeb. Fl. Ross. 2: 568, as synonym. 1846.
A perennial, with a cespitose rootstock; stems rather loosely silky or in age glabrate, 1-3 dm. high; basal leaves clustered, 3-7 cm. long, petioled, twice pinnatifid with linear divisions, silkyvillous ; stem-leaves pinnatifid into linear-filiform divisions or those of the inflorescence entire; heads in a usually narrow panicle, erect, subsessile or the lower pedimcled; involucre hemispheric, 3-4 mm. high, 5-6 mm. broad; bracts 12-20, in about 3 series, slightly villous, brown with dark purplish-brown centers; ray-flowers 15-25; corollas fully 1.5 mm. long; achenes about 1.5 mm. long; disk-flowers 25-40; corollas more funnelforra, nearly 3 mm. long, the teeth sparingly long hairy; style filiform, fully 2 mm. long.
T'V'PE locality: Siberia.
Distribution: Eastern Siberia and Alaska to Hudson Bay and Greenland.

Artemisia spithamaea Pursh, Fl. Am. Sept. 522. 1814
Artemisia groenlandica Wormsk. Fl. Dan. 27: 10. I8I8.
Artemisia borealis Purshii Besser; Hook. Fl. Bor. Am. 1: 326. 1833.
Artemisia borealis Wormskjoldii Besser. Bull. Soc. Nat. Mosc. 8: 84, in part. 1835.
Artemisia borealis Besseri T. & G. Fl. N. Am. «: 417. 1843.
ArUmisia borealis spithamaea T. & G. Fl. N. Am. 2: 417. 1843.
A perennial, with a cespitose rootstock; stem often decumbent at the base, more or less silky-canescent or in age glabrate, 1-2.5 dm. high; basal leaves clustered, 4-8 cm. long, petioled, silky-canescent; blades ovate or obovate in outline, usually twice pinnatifid into linear-oblanceolate divisions; lower stem-leaves similar but smaller or pinnatifid with linear divisions, those of the inflorescence 3-fid or simple; heads hclerogamous, erect, subsessile, usually in narrow spike-like panicles, or the panicle in larger specimens more open and branche.l; involucre hemispheric, 3-3.5 ram. high, 4-6 mm. broad; bracts 12-18, in about 3 series, more or less villous, at least when young, yellowishor purplish-brown, scarious-margined, acutish or the innermost rounded at the apex, the outer ovate, somewhat shorter than the inner oval ones; ray-flowers 12-15; corollas 1.5 ram. long; achenes nearly 1.5 mm. long; disk-flowers 25-40; corollas cylindro-campanulate, 2.5 mm. long, usually slightly hairy; style filiform.
Typb locality: Labrador.
Distribution: Greenland and the arctic coast, southward to Quebec, and in the mountains to Colorado and Washington.

Artemisia ripicola Rydberg, sp. nov
A tufted perennial, with a cespitose woody caudex; stems erect, 1-2 dm. high, silkycanescent; basal leaves clustered, 3-5 cm. long, silky-canescent with appressed hairs, pinnatifid or bi-pinnatifid into narrowly linear-oblanceolate divisions, petioled; stem-leaves pinnatifid into 3-5 narrowly linear divisions or those of the inflorescence entire; heads subsessile or very short-peduncled, erect, in a simple raceme or a narrow spike-like panicle ; involucre hemispheric, 3-3.5 mm. high, 4-5 mm. broad; bracts about 15, yellowish, lanceolate or ovate-lanceolate, acute, scarious-raargined, sparingly silky; ray-flowers about 15; corollas 1.5 mm. long; achenes fully 1.5 mm. long; disk-flowers 10-15; corollas deeply campanulate, 2 mm. long, the teeth sparingly hairy; style cylindric, 1.5 ram, long.
Type collected at Biggs, Sherman County, Oregon, 1910, A. A. Heller 10117 (herb. N. Y. Bot. Gard.).
Distribution: Oregon and Washington, along the Columbia River.

Artemisia borealis is an arctic and alpine species of plant in the sunflower family, commonly known as northern wormwood, boreal sage, boreal wormwood or boreal sagewort. It is native to high latitudes and high elevations in Eurasia and North America. In North America, it can be found in Alaska, Greenland, the Canadian Arctic, and the Rockies, Cascades, and Sierra Nevada as far south as Arizona and New Mexico. In Eurasia, it is widespread across European and Asiatic Russia and also grows in Scandinavia and in the mountains of central Europe (Carpathians, Alps, etc.)