The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

bursage mugwort, ragweed sagebrush

California mugwort, Douglas' mugwort, Douglas' sagewort, Douglas' wormwood, mugwort, northwest mugwort

Habit Biennials or perennials, 30–100 cm, faintly aromatic (rhizomatous). Perennials, 50–180(–250) cm, aromatic (rhizomatous).
Stems

1–3, erect, reddish brown, simple (leafy), glabrous or glabrate.

1–20, erect, brown to gray-green, simple, hairy or glabrescent.

Leaves

basal (in rosettes, petiolate) and cauline, bicolor (white and green);

blades ovate, 3–7(–20) × 2–4(–6) cm, 2–3-pinnately-lobed (lobes elliptic, 2–6 mm wide; cauline sessile, smaller), faces tomentose (abaxial) or glabrous or glabrescent (adaxial), glandular.

cauline, bicolor (white and green to light gray-green);

blades narrowly elliptic to widely oblanceolate, (1–)3–11(–15) × 0.5–2(–6) cm (proximal with 3–5 lateral lobes, distal mostly entire), faces sparsely tomentose (abaxial) to sparsely hairy (adaxial).

Involucres

broadly ovate, 3–5 × 4–5(–6) mm.

narrowly turbinate to campanulate, 2–3 × 2–4 mm.

Florets

pistillate 4–5(–13), (1–1.5 mm);

bisexual 25–35;

corollas yellow, 1.5–2 mm, glabrous.

pistillate 6–10;

bisexual 6–25;

corollas pale yellow, 1–1.5 mm, glabrous, sometimes glandular.

Phyllaries

broadly ovate, sparsely hairy.

(green to gray) ovate, tomentose to pubescent.

Heads

(nodding, peduncles 0 or 2) in paniculiform to racemiform arrays 10–35 × 2–4 cm (often 1-sided).

(usually nodding) in (leafy) paniculiform arrays 10–30 × 3–9 cm (branches widely spreading, ascending, stout).

Cypselae

elliptic, 0.5–0.8 mm, glabrous.

ellipsoid, 0.5–1 mm, glabrous.

2n

= 54.

Artemisia franserioides

Artemisia douglasiana

Phenology Flowering late summer–early fall. Flowering mid spring–late fall.
Habitat Open coniferous forests, mid to upper montane Meadows, shaded sites, along drainages
Elevation 2200–3100 m (7200–10200 ft) 100–2200 m (300–7200 ft)
Distribution
from FNA
AZ; CO; NM; Mexico (Chihuahua)
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; NV; OR; WA
[WildflowerSearch map]
[BONAP county map]
Discussion

Artemisia douglasiana is sometimes weedy. Reports from areas outside the northwestern portion of the United States are based on misidentifications of plants in the A. ludoviciana complex.

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

Source FNA vol. 19, p. 525. FNA vol. 19, p. 524.
Parent taxa Asteraceae > tribe Anthemideae > Artemisia > subg. Artemisia Asteraceae > tribe Anthemideae > Artemisia > subg. Artemisia
Sibling taxa
A. abrotanum, A. absinthium, 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. 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. californica, A. campestris, A. cana, A. carruthii, 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. campestris var. douglasiana, A. caudata var. douglasiana, A. commutata var. douglasiana, A. desertorum var. douglasiana, A. heterophylla, A. ludoviciana var. douglasiana, A. vulgaris var. douglasiana
Name authority Greene: Bull. Torrey Bot. Club 10: 42. (1883) Besser: in W. J. Hooker, Fl. Bor.-Amer. 1: 323. (1833)
Web links