Artemisia absinthium |
Artemisia filifolia |
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absinth wormwood, absinthe, absinthe wormwood, absinthium, armoise absinthe, common wormwood, green ginger, oldman, oldman wormwood, wormwood |
sand sage, sand sagebrush, sandhill sage, silvery wormwood |
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Habit | Perennials, 40–60(–100) cm (mat-forming), aromatic. | Shrubs, 60–180 cm (rounded), faintly aromatic. |
Stems | gray-green (sometimes woody proximally), densely canescent to glabrescent (hairs appressed). |
green or gray-green, wandlike (usually slender, curved, sometimes stout and stunted in harsh habitats), glabrous or sparsely hairy. |
Leaves | deciduous, gray-green; blades broadly ovate, 3–8 × 1–4 cm, mostly pinnately lobed (basal 2–3-pinnatifid, lobes obovate), faces densely canescent. |
gray-green; blades linear if entire, obovate if lobed, (1.5–)2–5(–6) × 0.1–2.5 cm, entire to 3-lobed, lobes filiform (less than 1 mm wide), apices acute, glabrous or sparsely hairy. |
Involucres | broadly ovoid, 2–3 × 3–5 mm. |
globose, 1.5–2 × 1.5–2 mm. |
Florets | pistillate 9–20; bisexual 30–50; corollas 1–2 mm, glandular. |
pistillate 1–4; functionally staminate 3–6; corollas pale yellow, 1–1.5 mm, glabrous. |
Phyllaries | gray-green, densely sericeous. |
(ovate, inconspicuous, margins scarious) densely hairy. |
Heads | (nodding) in open (diffusely branched), paniculiform arrays 10–20(–35) × (2–)10–13(–15) cm. |
(mostly sessile) in paniculiform arrays 8–15(–17) × 2–4(–5) cm (branches erect to somewhat recurved). |
Cypselae | (± cylindric, slightly curved, obscurely nerved), ± 0.5 mm, glabrous (shiny). |
oblong (distally incurved-falcate and oblique), 0.2–0.5 mm, obscurely nerved, glabrous. |
2n | = 18. |
= 18. |
Artemisia absinthium |
Artemisia filifolia |
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Phenology | Flowering mid summer–fall. | Flowering late summer–early winter. |
Habitat | Widely cultivated, persisting from plantings, disturbed areas | Open prairies, dunes, sandy soils |
Elevation | 0–1000 m [0–3300 ft] | 500–2000 m [1600–6600 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; CO; KS; NE; NM; NV; OK; SD; TX; UT; WY
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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.) |
One of the more easily distinguished of the shrubby Artemisia species, A. filifolia occurs in sandy soils and cohabits with species of Yucca, Cactaceae, and Salvia dorrii, the purple sage of western literary fame. Its filiform leaves and faintly aromatic foliage distinguish it from members of subg. Tridentatae. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 19, p. 519. | FNA vol. 19, p. 508. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | A. plattensis, Oligosporus filifolius | |
Name authority | Linnaeus: Sp. Pl. 2: 848. (1753) | Torrey: Ann. Lyceum Nat. Hist. New York 2: 211. (1827) |
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