Artemisia borealis

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Artemisia borealis
Artemisia borealis.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Artemisia
Species: A. borealis
Binomial name
Artemisia borealis
Pall. 1776 not Kitam. 1934 nor Liou date unknown
Synonyms[1]

Artemisia borealis is an arctic and alpine species plants of the sunflower family. Some common names are: boreal sage, boreal wormwood and boreal sagewort.[2] 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.[3][4] In Eurasia, it is widespread across European and Asiatic Russia[5] and also grows in Scandinavia and in the mountains of central Europe (Carpathians, Alps, etc.)[6][7][8]

Description[edit]

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 (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.[3]

References[edit]