Artemisia absinthium |
Artemisia stelleriana |
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absinth wormwood, absinthe, absinthe wormwood, absinthium, armoise absinthe, common wormwood, green ginger, oldman, oldman wormwood, wormwood |
armoise de Steller, beach wormwood, dusty miller, oldwoman, Steller's wormwood |
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Habit | Perennials, 40–60(–100) cm (mat-forming), aromatic. | Perennials, (15–)20–60(–70) cm (mat-forming), sometimes faintly aromatic (rhizomes creeping, relatively thin). |
Stems | gray-green (sometimes woody proximally), densely canescent to glabrescent (hairs appressed). |
1–3, erect or ascending, white, simple (stout), densely tomentose to floccose. |
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 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. |
Involucres | broadly ovoid, 2–3 × 3–5 mm. |
broadly campanulate, 5–8 × 6–7 mm. |
Florets | pistillate 9–20; bisexual 30–50; corollas 1–2 mm, glandular. |
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). |
Phyllaries | gray-green, densely sericeous. |
broadly lanceolate, tomentose. |
Heads | (nodding) in open (diffusely branched), paniculiform arrays 10–20(–35) × (2–)10–13(–15) cm. |
(erect or spreading, peduncles 0 or to 3 mm) in dense, paniculiform, racemiform, or spiciform arrays 8–20 × 2–4 cm. |
Cypselae | (± cylindric, slightly curved, obscurely nerved), ± 0.5 mm, glabrous (shiny). |
(dark brown) narrowly oblong-linear (slightly flattened, smooth), 3–4 mm, glabrous. |
2n | = 18. |
= 18. |
Artemisia absinthium |
Artemisia stelleriana |
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Phenology | Flowering mid summer–fall. | Flowering early spring–fall. |
Habitat | Widely cultivated, persisting from plantings, disturbed areas | Sandy soils, coastal strand |
Elevation | 0–1000 m [0–3300 ft] | 0–200 m [0–700 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; CT; DE; FL; LA; MA; MD; ME; MI; MN; NC; NH; NJ; NY; OH; PA; RI; VA; VT; WA; WI; WV; NB; NF; NS; ON; PE; QC; SPM; n Europe; e Asia (Japan, Kamchatka)
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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.) |
Artemisia stelleriana is apparently native along the western tip of the Aleutian islands (D. F. Murray, pers. comm.). It is an attractive ornamental and, in parts of its range in the flora area, it appears to have escaped from cultivation and is naturalized in beach dunes and other sandy habitats. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 19, p. 519. | FNA vol. 19, p. 532. |
Parent taxa | ||
Sibling taxa | ||
Name authority | Linnaeus: Sp. Pl. 2: 848. (1753) | Besser: Nouv. Mém. Soc. Imp. Naturalistes Moscou 3: 79, plate 5. (1834) |
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