Artemisia stelleriana
Artemisia laciniata
armoise de Steller, beach wormwood, dusty miller, oldwoman, Steller's wormwood
Siberian wormwood
1–3, erect or ascending, white, simple (stout), densely tomentose to floccose.
1–3, erect, reddish brown, simple, strigillose to spreading-hairy, or glabrous.
basal and cauline (petiolate), silver-gray;
blades oblanceolate, (proximalmost) 3–10 × 1–5 cm, pinnatifid (lobes relatively broad, rounded; distal leaves, on flowering stems, smaller), faces densely tomentose.
basal (in rosettes, petioles to 12 cm) and cauline, greenish;
blades (basal) 2–3-pinnate, relatively deeply lobed (cauline sessile, 1–2-pinnately lobed to entire), faces sparsely hairy to pilose.
broadly campanulate, 5–8 × 6–7 mm.
globose, 3–5 × 4–8 mm.
pistillate 12–16;
bisexual 25–30;
corollas yellow (narrow or tubular), 3.2–4 mm (unusually large), glabrous or sparsely hairy (style branches prominent, erect, blunt).
pistillate 6–8;
bisexual 20–50;
corollas yellowish or yellow to reddish-tinged, 1–2 mm, hairy (hairs tangled).
broadly lanceolate, tomentose.
(greenish or yellowish) elliptic (margins hyaline, brownish), glabrous or sparsely hairy.
(erect or spreading, peduncles 0 or to 3 mm) in dense, paniculiform, racemiform, or spiciform arrays 8–20 × 2–4 cm.
(10–70, spreading to nodding, peduncles 0 or to 10 mm) in spiciform arrays 2–5 × 0.5–1 or 8–18 × 1–4 cm.
(dark brown) narrowly oblong-linear (slightly flattened, smooth), 3–4 mm, glabrous.
oblong, 0.5–1 mm, glabrous.
= 18.
Artemisia stelleriana
Artemisia laciniata
Artemisia stelleriana is apparently native along the western tip of the Aleutian islands (D. F. Murray, pers. comm.). It is an attractive ornamental and, in parts of its range in the flora area, it appears to have escaped from cultivation and is naturalized in beach dunes and other sandy habitats.
(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.)
1. Stems hairy; leaves mostly cauline, blades 5–20 × 1–2 cm, sparsely hairy; arrays of heads 8–18 × 1–4 cm; corollas yellowish, 1–1.5 mm | subsp. laciniata |
1. Stems glabrous; leaves mostly basal, blades of proximalmost 4–8 × 0.5–1 cm, of cauline 1.5–0.8 × 0.2 cm, sericeous; arrays of heads 2–5 × 0.5–1 cm; corollas yellow or reddish-tinged, 1.5–2 mm | subsp. parryi |
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