Artemisia absinthium |
Artemisia globularia |
|||||
---|---|---|---|---|---|---|
absinth wormwood, absinthe, absinthe wormwood, absinthium, armoise absinthe, common wormwood, green ginger, oldman, oldman wormwood, wormwood |
purple wormwood |
|||||
Habit | Perennials, 40–60(–100) cm (mat-forming), aromatic. | Perennials, (3–)5–16(–30) cm (cespitose), faintly aromatic (not rhizomatous, taproots stout, caudices simple or branched, proximal branches clothed with persistent leaf bases). | ||||
Stems | gray-green (sometimes woody proximally), densely canescent to glabrescent (hairs appressed). |
1–5, erect, whitish gray, densely tomentose. |
||||
Leaves | deciduous, gray-green; blades broadly ovate, 3–8 × 1–4 cm, mostly pinnately lobed (basal 2–3-pinnatifid, lobes obovate), faces densely canescent. |
mostly basal (cauline 1–4), greenish to whitish green; blades (basal) 1–4.5 × 0.6–1.5 cm, 1–2-ternately to palmately lobed (flowering-stem blades 3-lobed), faces sparsely hairy. |
||||
Involucres | broadly ovoid, 2–3 × 3–5 mm. |
campanulate or hemispheric, 3.5–6 × 6–11 mm. |
||||
Florets | pistillate 9–20; bisexual 30–50; corollas 1–2 mm, glandular. |
pistillate 9–10; bisexual 20–30; corollas yellow or reddish black, 2–3 mm, sometimes glandular. |
||||
Phyllaries | gray-green, densely sericeous. |
lanceolate (margins brown), pilose. |
||||
Heads | (nodding) in open (diffusely branched), paniculiform arrays 10–20(–35) × (2–)10–13(–15) cm. |
(2–20, peduncles 0 or to 25 mm) in subcapitate to capitate arrays 2–3 × 2–3 cm. |
||||
Cypselae | (± cylindric, slightly curved, obscurely nerved), ± 0.5 mm, glabrous (shiny). |
oblong, 1.5–2.5 mm, (apices flattened) glabrous. |
||||
2n | = 18. |
|||||
Artemisia absinthium |
Artemisia globularia |
|||||
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]
|
AK; YT; Asia |
||||
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.) |
||||
Key |
|
|||||
Source | FNA vol. 19, p. 519. | FNA vol. 19, p. 525. | ||||
Parent taxa | Asteraceae > tribe Anthemideae > Artemisia > subg. Absinthium | Asteraceae > tribe Anthemideae > Artemisia > subg. Artemisia | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Ajania globularia, A. norvegica subsp. globularia | |||||
Name authority | Linnaeus: Sp. Pl. 2: 848. (1753) | Chamisso ex Besser: Nouv. Mém. Soc. Imp. Naturalistes Moscou 3: 64. (1833) | ||||
Web links |
|