Artemisia borealis
| Artemisia borealis | |
|---|---|
 | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Artemisia |
| Species: | A. borealis |
| Binomial name | |
| Artemisia borealis Pall. | |
Artemisia borealis is a plant of the genus Artemisia. Some common names are: boreal sage, boreal wormwood and boreal sagewort.[1] There are two recognised subspecies, found in western North America, especially at high elevations and northern latitudes, and in Eurasia.[2]
Description
Perennials, (6–)8–20(–40) cm (cespitose), 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 (proximal sessile, 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.[2]