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absinth wormwood, absinthe, absinthe wormwood, absinthium, armoise absinthe, common wormwood, green ginger, oldman, oldman wormwood, wormwood

California sagebrush, coastal sage brush

Habit Perennials, 40–60(–100) cm (mat-forming), aromatic. Shrubs, (20–)150–250 cm (rounded), pungently aromatic.
Stems

gray-green (sometimes woody proximally), densely canescent to glabrescent (hairs appressed).

relatively numerous, arched, green or brown, branched (slender, wandlike, bases brittle), densely canescent to glabrate.

Leaves

deciduous, gray-green;

blades broadly ovate, 3–8 × 1–4 cm, mostly pinnately lobed (basal 2–3-pinnatifid, lobes obovate), faces densely canescent.

cauline, light green to gray;

blades filiform or spatulate to obovate, 3–5(–9) × 0.5–2 cm, sometimes pinnately lobed (lobes filiform, 0.5–1 mm wide), faces sparsely to densely hairy.

Involucres

broadly ovoid, 2–3 × 3–5 mm.

globose, 2–3(–4) × 2–4(–5) mm.

Florets

pistillate 9–20;

bisexual 30–50;

corollas 1–2 mm, glandular.

pistillate 6–10;

bisexual 18–25;

corollas pale yellow, 0.8–1.2 mm, glabrous.

Phyllaries

gray-green, densely sericeous.

broadly ovate, sparsely canescent.

Heads

(nodding) in open (diffusely branched), paniculiform arrays 10–20(–35) × (2–)10–13(–15) cm.

(nodding at maturity, pedunculate) in paniculiform arrays 6–20 × 1–3 cm (branches erect to broadly spreading).

Cypselae

(± cylindric, slightly curved, obscurely nerved), ± 0.5 mm, glabrous (shiny).

ellipsoid, 0.5–1.5 mm, resinous (pappi coroniform).

2n

= 18.

= 18.

Artemisia absinthium

Artemisia californica

Phenology Flowering mid summer–fall. Flowering early–late summer.
Habitat Widely cultivated, persisting from plantings, disturbed areas Coastal scrub, dry foothills
Elevation 0–1000 m [0–3300 ft] 0–800 m [0–2600 ft]
Distribution
from FNA
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]
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
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 californica is the common sagebrush of chaparral in southern California. Its threadlike leaves and green flowering heads distinguish it from any other shrub in California. Artemisia nesiotica, an endemic of the Channel Islands that was initially considered a morphologic variant of A. californica, is distinct in size and form. Systematic placement of the complex may be problematic. The molecular phylogeny of L. E. Watson et al. (2002) suggests an alignment of A. californica within subg. Tridentatae. Based on this finding, a subgeneric realignment of this species may be in order. The odor of A. californica is markedly like that of the culinary mints known as common sage (Salvia species).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 19, p. 519. Treatment author: Leila M. Shultz. FNA vol. 19, p. 524. Treatment author: Leila M. Shultz.
Parent taxa Asteraceae > tribe Anthemideae > Artemisia > subg. Absinthium Asteraceae > tribe Anthemideae > Artemisia > subg. Artemisia
Sibling taxa
A. abrotanum, A. alaskana, A. aleutica, A. annua, A. arbuscula, A. biennis, A. bigelovii, A. borealis, A. californica, A. campestris, A. cana, A. carruthii, A. douglasiana, A. dracunculus, A. filifolia, A. franserioides, A. frigida, A. furcata, A. globularia, A. glomerata, A. laciniata, A. longifolia, A. ludoviciana, A. michauxiana, A. nesiotica, A. norvegica, A. nova, A. packardiae, A. palmeri, A. papposa, A. pattersonii, A. pedatifida, A. pontica, A. porteri, A. pycnocephala, A. pygmaea, A. rigida, A. rothrockii, A. rupestris, A. scopulorum, A. senjavinensis, A. serrata, A. spiciformis, A. stelleriana, A. suksdorfii, A. tilesii, A. tridentata, A. tripartita, A. vulgaris
A. abrotanum, A. absinthium, A. alaskana, A. aleutica, A. annua, A. arbuscula, A. biennis, A. bigelovii, A. borealis, A. campestris, A. cana, A. carruthii, A. douglasiana, A. dracunculus, A. filifolia, A. franserioides, A. frigida, A. furcata, A. globularia, A. glomerata, A. laciniata, A. longifolia, A. ludoviciana, A. michauxiana, A. nesiotica, A. norvegica, A. nova, A. packardiae, A. palmeri, A. papposa, A. pattersonii, A. pedatifida, A. pontica, A. porteri, A. pycnocephala, A. pygmaea, A. rigida, A. rothrockii, A. rupestris, A. scopulorum, A. senjavinensis, A. serrata, A. spiciformis, A. stelleriana, A. suksdorfii, A. tilesii, A. tridentata, A. tripartita, A. vulgaris
Synonyms A. abrotanoides, A. fischeriana, A. foliosa, Crossostephium californicum
Name authority Linnaeus: Sp. Pl. 2: 848. (1753) Lessing: Linnaea 6: 523. (1831)
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