Flora of North America species comparison

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Artemisia douglasiana

California mugwort, Douglas' mugwort, Douglas' sagewort, Douglas' wormwood, mugwort, northwest mugwort
Habit Perennials, 50–180(–250) cm, aromatic (rhizomatous).
Stems

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

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

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

pistillate 6–10;

bisexual 6–25;

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

(green to gray) ovate, tomentose to pubescent.
Heads

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

ellipsoid, 0.5–1 mm, glabrous.
2n

= 54.

Artemisia douglasiana
Phenology Flowering mid spring–late fall.
Habitat Meadows, shaded sites, along drainages
Elevation 100–2200 m (300–7200 ft)
Distribution
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. 524.
Parent taxa 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. 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 Besser: in W. J. Hooker, Fl. Bor.-Amer. 1: 323. (1833)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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