Artemisia borealis

Pallas

Reise Russ. Reich. 3: 755. 1776.

Synonyms: Artemisia campestris subsp. borealis (Pallas) H. M. Hall & Clements
Treatment appears in FNA Volume 19. Treatment on page 505. Mentioned on page 508.

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 mm, faintly nerved, glabrous.

Distribution

V19-849-distribution-map.gif

Alta., B.C., N.W.T., Nunavut, Sask., Yukon, Alaska, Calif., Colo., Idaho, Mont., Utah, Wash., Wyo., especially at high elevations and northern latitudes, Eurasia

Discussion

Subspecies 2 (2 in the flora).

Selected References

None.

Key

1 Herbage villoso-tomentose, glabrate, or glabrous; corollas (at least lobes) usually yellow-orange, 2.2–3 mm; mountains, w North America Artemisia borealis subsp. borealis
1 Herbage white-hoary; corollas (at least lobes) deep red, 3–3.5 mm; w arctic North America Artemisia borealis subsp. richardsoniana
... more about "Artemisia borealis"
not tailed +  and obtuse +
scarious +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Leila M. Shultz +
Pallas +
decurrent +
compound +  and simple +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
lobed;ovate +
0.5cm;1cm +
zygomorphic +, actinomorphic +  and (3-)5-merous +
red +, deep +  and yellow-orange +
2.2 +  and 3.5 +
compressed +  and oblong-lanceoloid +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, B.C. +, N.W.T. +, Nunavut +, Sask. +, Yukon +, Alaska +, Calif. +, Colo. +, Idaho +, Mont. +, Utah +, Wash. +, Wyo. +, especially at high elevations and northern latitudes +  and Eurasia +
gland-dotted +
staminate +  and pistillate +
winged +  and beaked +
dispersed +
spiciform +  and racemiform +
in subcapitate clusters +  and singly +
9 cm90 mm <br />0.09 m <br /> (12 cm120 mm <br />0.12 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
indeterminate +
4 cm40 mm <br />0.04 m <br /> (9 cm90 mm <br />0.09 m <br />) +
heterogamous +  and homogamous +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
each +  and sessile +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
hemispheric +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
sessile +  and petiolate +
persistent +
basal +  and cauline +
linear +  and narrowly oblong +
entire +  and dentate +
2-carpellate +
persistent +
tomentose-villous +
2 +  and 20 +
Reise Russ. Reich. +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
conic;convex;conic;convex;flat +
2 +  and 5 +
exalbuminous +
1 (?) +  and 2 (?) +
gray-green +
2 +  and 5 +
wand-like +
appendaged +  and truncate +
papillate +
Artemisia campestris subsp. borealis +
Artemisia borealis +
Artemisia subg. Drancunculus +
species +
funnel +  and subglobose +
cylindric +
20 cm200 mm <br />0.2 m <br /> (40 cm400 mm <br />0.4 m <br />) +
8 cm80 mm <br />0.08 m <br /> (20 cm200 mm <br />0.2 m <br />) +
taprooted +  and fibrous-rooted +