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Artemisia campestris var. spithamaea (Pursh) M.Peck
Artemisia campestris var. wormskioldii (Besser ex Hook) Cronquist
Artemisia camtschatica Schltdl. ex Ledeb.
Artemisia canadensis f. peucedanifolia (Juss. ex Besser) Vict. & J.Rousseau
Artemisia gelida Ledeb.
Artemisia helvetica Schleich.
Artemisia nana Gaudin
Artemisia nana var. parviflora Gaudin
Artemisia norica Leyb.
Artemisia pallasii Willd. ex Spreng.
Artemisia peucedanifolia Juss. ex Besser
Artemisia purshiana Besser
Artemisia ripicola Rydb.
Artemisia spithamaea Pursh
Artemisia stelleri Steven ex Ledeb.
Artemisia vermiculata Schangin ex DC.
Artemisia violacea Ledeb.
Draconia campestris subsp. borealis (Pall.) Soják
Oligosporus borealis (Pall.) Poljakov
Oligosporus nanus (Gaudin) Poljakov
Oligosporus peucedanifolius (Juss. ex Besser) Poljakov
Artemisia campestris subsp. borealis is an arctic and alpine subspecies 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.)
Description
Perennials, (6–)8–20(–40) cm (caespitose), mildly aromatic; taprooted, caudices branched. Stems (1–)2–5, gray-green, tomentose. Leaves persistent, basal rosettes persistent, gray-green to white; blades ovate, 2–4 × 0.5–1 cm, 2–3-pinnately or -ternately lobed, lobes linear to narrowly oblong, apices acute, faces moderately to densely sericeous. Heads (proximalsessile, distal pedunculate) in (leafy) spiciform arrays 4–9(–12) × (0.5–)1–5 cm. Involucres hemispheric, 3–4 × 3.5–4 mm. Phyllaries (obscurely scarious) densely tomentose-villous. Florets: pistillate 8–10; functionally staminate 15–30; corollas (or lobes) yellow-orange or deep red, 2.2–3.5. Cypselae oblong-lanceoloid, somewhat compressed, 0.4–1 millimetre (0.016–0.039 in), faintly nerved, glabrous.
