Artemisia stelleriana Besser

Oldwoman (en), Armoise de Steller (fr)

Species

Angiosperms > Asterales > Asteraceae > Artemisia

Characteristics

Perennials, (15–)20–60(–70) cm (mat-forming), sometimes faintly aromatic (rhizomes creeping, relatively thin). Stems 1–3, erect or ascending, white, simple (stout), densely tomentose to floccose. Leaves basal and cauline (petiolate), silver-gray; blades oblanceolate, (proximalmost) 3–10 × 1–5 cm, pinnatifid (lobes relatively broad, rounded; distal leaves, on flowering stems, smaller), faces densely tomentose. Heads (erect or spreading, peduncles 0 or to 3 mm) in dense, paniculiform, racemiform, or spiciform arrays 8–20 × 2–4 cm. Involucres broadly campanulate, 5–8 × 6–7 mm. Phyllaries broadly lanceolate, tomentose. Florets: pistillate 12–16; bisexual 25–30; corollas yellow (narrow or tubular), 3.2–4 mm (unusually large), glabrous or sparsely hairy (style branches prominent, erect, blunt). Cypselae (dark brown) narrowly oblong-linear (slightly flattened, smooth), 3–4 mm, glabrous. 2n = 18.
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Inodorous, rhizomatous perennial 3–7 dm, simple to the infl, densely white-tomentose or floccose; lvs 3–10 cm (petiole included) × 1–5 cm, with a few relatively broad, rounded lobes, which may be again slightly lobed; infl narrow and often dense; heads relatively large, the invol 6–7.5 mm; disk-cors 3.2–4.0 mm; achenes subterete, but narrowed at base and rounded above; 2n=18. Sandy beaches; native from Kamchatka to Japan, escaped from cult. and established from Que. to Va., and occasionally inland to Minn. May–Sept.
A perennial herb. It grows 45-60 cm high and spreads 60-90 cm wide. The leaves are grey-green and almost silver. They have a felted texture. They are spoon shaped. They are 4-6 cm long. The flower-heads are greenish-yellow. They are on slender stalks 3 cm long.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) 0.6 - 0.9
Mature height (meter) 0.45 - 0.5
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Sand dunes and coastal cliffs, C. and N. Japan. In river mouths and usually along sandy-gravelly seacoasts, sometimes on rubbly slopes near the sea.
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It is a temperate plant. It is frost hardy. It suits hardiness zones 3-9.
Light 6-8
Soil humidity 1-6
Soil texture 2-5
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 4-8

Usage

CAUTION: Several plants in this group are poisonous. The leaves are used for flavouring rice dumplings.
Uses medicinal ornamental poison
Edible leaves shoots
Therapeutic use Carminative (unspecified), Cold (unspecified), Hair-Tonic (unspecified), Intellect (unspecified), Nervine (unspecified), Skin (unspecified), Sore (unspecified), Stomachic (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings, divisions or seedlings.
Mode cuttings divisions seedlings
Germination duration (days) 30 - 60
Germination temperacture (C°) 10 - 12
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -29
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Artemisia stelleriana leaf picture by wayne istead (cc-by-sa)
Artemisia stelleriana leaf picture by wayne istead (cc-by-sa)
Artemisia stelleriana leaf picture by Gene Mayhall (cc-by-sa)

Flower

Artemisia stelleriana flower picture by Catalin Gruia (cc-by-sa)

Distribution

Artemisia stelleriana world distribution map, present in Canada, Denmark, France, United Kingdom of Great Britain and Northern Ireland, Japan, Korea (Democratic People's Republic of), Russian Federation, Saint Pierre and Miquelon, Sweden, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:180142-1
WFO ID wfo-0000032151
COL ID GWXQ
BDTFX ID -
INPN ID 645319
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Artemisia chinensis Artemisia stelleriana var. stelleriana Artemisia stelleriana var. vesiculosa Artemisia stelleriana var. sachalinensis Artemisia stelleriana