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Artemisia michauxiana Besser

Michaux's wormwood (en)

Species

Angiosperms > Asterales > Asteraceae > Artemisia

Characteristics

Perennials, 30–100 cm, strongly aromatic (lemon-scented; rhizomatous). Stems relatively many, erect, green, simple, glabrous. Leaves cauline, green; blades broadly lanceolate to narrowly elliptic, 1.5–11 × 1–1.5 cm, 2-pinnately lobed, (ultimate lobes toothed), faces white-tomentose (abaxial) or glabrous (adaxial), yellow-gland-dotted. Heads (erect to nodding, peduncles 0 or to 10 mm) in paniculiform to spiciform arrays 8–15 × 1–1.5 cm. Involucres campanulate, 3(–4) × 2–5.5 mm. Phyllaries (yellow-green, rarely purplish) broadly ovate, glabrous or sparsely hairy, yellow-gland-dotted. Florets: pistillate 9–12; bisexual 15–35; corollas yellow, 1–1.5 mm, glandular. Cypselae (yellow to light brown) ellipsoid, ca. 0.5 mm, glabrous or glandular. 2n = 18, 36.
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A herb. It has a woody base and several branching stems. The stems are leafy. The stems are 20-40 cm high. The leaves are 35 cm long and twice divided. They are green above and have a covering underneath. The flowers are in several heads along a spike-like raceme.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination anemogamy
Spread -
Mature width (meter) -
Mature height (meter) 0.45
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Rocky places in mountains, usually at rather high elevations. Talus slopes, alpine and subalpine drainages; at elevations from 1,900-3,700 metres.
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It is a cool temperate plant. It grows in the Rocky Mountains. It grows on mountains at high elevation. It suits hardiness zone 3.
Light 6-9
Soil humidity 1-6
Soil texture 3-5
Soil acidity 4-7
Soil nutriment -
Hardiness (USDA) 3-5

Usage

Uses medicinal
Edible seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) 30 - 60
Germination temperacture (C°) 15 - 18
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -40
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Artemisia michauxiana unspecified picture

Distribution

Artemisia michauxiana world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:179806-1
WFO ID wfo-0000024276
COL ID GWMF
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Artemisia michauxiana Artemisia discolor var. discolor Artemisia vulgaris subsp. michauxiana
WorldFloraDB 2024