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bursage mugwort, ragweed sagebrush

congested sagewort, Pacific alpine wormwood

Habit Biennials or perennials, 30–100 cm, faintly aromatic (rhizomatous). Perennials, 30–50(–100) cm (densely cespitose), mildly aromatic (not rhizomatous, caudices subterranean, branches clothed with persistent leaf bases).
Stems

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

relatively numerous, ascending, brown, simple, hairy.

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.

mostly basal (cauline mostly 2–4, smaller), whitish;

blades (basal) flabellate, 0.5–1(–2) × 0.5–0.8(–1.5) cm, relatively deeply lobed (lobes 5–9, linear), faces strigillose.

Involucres

broadly ovate, 3–5 × 4–5(–6) mm.

broadly campanulate, 3–4 × 3.5–5 mm.

Florets

pistillate 4–5(–13), (1–1.5 mm);

bisexual 25–35;

corollas yellow, 1.5–2 mm, glabrous.

pistillate 4–5;

bisexual 10–15;

corollas yellow (3–5-toothed), 2–2.5 mm, glabrous or sparsely pilose.

Phyllaries

broadly ovate, sparsely hairy.

lanceolate (margins brownish), densely pilose.

Heads

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

(3–10, erect or nodding, peduncles 0 or to 15 mm) in subcapitate to corymbiform arrays 1–5 × 2–4 cm.

Cypselae

elliptic, 0.5–0.8 mm, glabrous.

ellipsoid (flattened, margins ribbed), 1–1.5 mm, glabrous.

2n

= 18, 27, 36, 54.

Artemisia franserioides

Artemisia glomerata

Phenology Flowering late summer–early fall. Flowering mid summer.
Habitat Open coniferous forests, mid to upper montane Arctic and alpine tundra and sandy slopes
Elevation 2200–3100 m (7200–10200 ft) 0–1000 m (0–3300 ft)
Distribution
from FNA
AZ; CO; NM; Mexico (Chihuahua)
[WildflowerSearch map]
[BONAP county map]
from FNA
AK; YT
[BONAP county map]
Discussion

Artemisia glomerata is similar to A. senjavinensis; it can be distinguished by its more deeply lobed leaves and sparser indument.

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

Source FNA vol. 19, p. 525. FNA vol. 19, p. 526.
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. douglasiana, A. dracunculus, A. filifolia, A. franserioides, A. frigida, A. furcata, A. globularia, 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 Ajania glomerata, A. glomerata var. subglabra, A. norvegica var. glomerata
Name authority Greene: Bull. Torrey Bot. Club 10: 42. (1883) Ledebour: Mém. Acad. Imp. Sci. St. Pétersbourg Hist. Acad. 5: 564. (1815)
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