Artemisia absinthium |
Artemisia laciniata |
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absinth wormwood, absinthe, absinthe wormwood, absinthium, armoise absinthe, common wormwood, green ginger, oldman, oldman wormwood, wormwood |
Siberian wormwood |
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Habit | Perennials, 40–60(–100) cm (mat-forming), aromatic. | Perennials, 5–15 cm (not cespitose), sometimes mildly aromatic. | ||||
Stems | gray-green (sometimes woody proximally), densely canescent to glabrescent (hairs appressed). |
1–3, erect, reddish brown, simple, strigillose to spreading-hairy, or glabrous. |
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Leaves | deciduous, gray-green; blades broadly ovate, 3–8 × 1–4 cm, mostly pinnately lobed (basal 2–3-pinnatifid, lobes obovate), faces densely canescent. |
basal (in rosettes, petioles to 12 cm) and cauline, greenish; blades (basal) 2–3-pinnate, relatively deeply lobed (cauline sessile, 1–2-pinnately lobed to entire), faces sparsely hairy to pilose. |
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Involucres | broadly ovoid, 2–3 × 3–5 mm. |
globose, 3–5 × 4–8 mm. |
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Florets | pistillate 9–20; bisexual 30–50; corollas 1–2 mm, glandular. |
pistillate 6–8; bisexual 20–50; corollas yellowish or yellow to reddish-tinged, 1–2 mm, hairy (hairs tangled). |
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Phyllaries | gray-green, densely sericeous. |
(greenish or yellowish) elliptic (margins hyaline, brownish), glabrous or sparsely hairy. |
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Heads | (nodding) in open (diffusely branched), paniculiform arrays 10–20(–35) × (2–)10–13(–15) cm. |
(10–70, spreading to nodding, peduncles 0 or to 10 mm) in spiciform arrays 2–5 × 0.5–1 or 8–18 × 1–4 cm. |
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Cypselae | (± cylindric, slightly curved, obscurely nerved), ± 0.5 mm, glabrous (shiny). |
oblong, 0.5–1 mm, glabrous. |
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2n | = 18. |
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Artemisia absinthium |
Artemisia laciniata |
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Phenology | Flowering mid summer–fall. | |||||
Habitat | Widely cultivated, persisting from plantings, disturbed areas | |||||
Elevation | 0–1000 m (0–3300 ft) | |||||
Distribution |
CA; CO; CT; IA; ID; IL; IN; KS; MA; MD; ME; MI; MN; MO; MT; NC; ND; NE; NH; NJ; NY; OH; OR; PA; RI; SC; SD; TN; UT; VT; WA; WI; WY; AB; BC; MB; NB; NF; NS; ON; PE; QC; SK; Europe [Introduced in North America]
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AK; CO; ID; NM; UT; YT; Eurasia |
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Discussion | Artemisia absinthium provides the flavoring as well as the psychoactive ingredient for absinthe liquor, a beverage that is illegal in some markets. Known as a powerful neurotoxin, absinthe in large quantities is addictive as well as deadly. The species is popular in the horticultural trade. Prized by gardeners for its gracefully scalloped leaves and gray-green foliage, it creates an attractive and winter-hardy flower border. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 19, p. 519. | FNA vol. 19, p. 526. | ||||
Parent taxa | Asteraceae > tribe Anthemideae > Artemisia > subg. Absinthium | Asteraceae > tribe Anthemideae > Artemisia > subg. Artemisia | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Linnaeus: Sp. Pl. 2: 848. (1753) | Willdenow: Sp. Pl. 3: 1843. (1803) | ||||
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