Artemisia absinthium |
Artemisia cana |
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absinth wormwood, absinthe, absinthe wormwood, absinthium, armoise absinthe, common wormwood, green ginger, oldman, oldman wormwood, wormwood |
dwarf sagebrush, hoary sagebrush, silver sagebrush, silver wormwood, sticky sagebrush |
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Habit | Perennials, 40–60(–100) cm (mat-forming), aromatic. | Shrubs, 50–150 cm (trunks definite, freely branched from bases, branches erect), pleasantly aromatic; root-sprouting. | ||||||||
Stems | gray-green (sometimes woody proximally), densely canescent to glabrescent (hairs appressed). |
light brown to gray-green (woody, somewhat pliable, leafy), persistently canescent to glabrescent. |
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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. |
deciduous, whitish gray or green to dark gray-green; blades narrowly elliptic to lanceolate, 1.5–8 × 0.2–1 cm, usually entire, sometimes irregularly lobed, sparsely to densely hairy. |
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Involucres | broadly ovoid, 2–3 × 3–5 mm. |
(subtended by green, leaflike bracts) narrowly to broadly campanulate, 3–4 × 2–5 mm. |
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Florets | pistillate 9–20; bisexual 30–50; corollas 1–2 mm, glandular. |
4–20; corollas 2–3 mm, resinous (style branches ellipsoid, to 2.3 mm, exsert, gland-dotted). |
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Phyllaries | gray-green, densely sericeous. |
ovate or lanceolate (scarious margins nearly invisible), densely canescent. |
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Heads | (nodding) in open (diffusely branched), paniculiform arrays 10–20(–35) × (2–)10–13(–15) cm. |
in (congested, leafy) paniculiform arrays 10–20 × 0.2–7 cm. |
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Cypselae | (± cylindric, slightly curved, obscurely nerved), ± 0.5 mm, glabrous (shiny). |
(light brown) 1–2.3 mm, resinous. |
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2n | = 18. |
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Artemisia absinthium |
Artemisia cana |
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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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AZ; CA; CO; ID; MT; ND; NE; NM; NV; OR; SD; UT; WY; AB; BC; MB; SK
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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 3 (3 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. 512. | ||||||||
Parent taxa | ||||||||||
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Subordinate taxa | ||||||||||
Synonyms | Seriphidium canum | |||||||||
Name authority | Linnaeus: Sp. Pl. 2: 848. (1753) | Pursh: Fl. Amer. Sept. 2: 521. (1813) | ||||||||
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