Burke: Artemisia annua vs. Artemisia stelleriana

	Artemisia annua	Artemisia stelleriana
	sweet Annie, sweet sagewort, annual wormwood	dusty miller, oldwoman, beach wormwood, Steller's wormwood
Habit	Sweet-scented, glabrous, tap-rooted annual 0.3-3 m. tall.
Leaves	Leaves 2-10 cm. long, twice or thrice pinnatifid, the ultimate segments linear or lanceolate.
Flowers	Inflorescence broad and open, the discoid heads loose, often nodding, borne on short peduncles; involucre glabrous, imbricate, 1-2 mm. high; flowers all fertile, the outer pistillate; pappus none,
Fruits	Achene glabrous.

	Artemisia annua	Artemisia stelleriana
Flowering time	August-October	May-September
Habitat	Roadsides, fields, ditches, wastelots, and other disturbed open places.	Coastal dunes and beaches in developed coastal areas, where escaping from cultivation.
Distribution	Occurring in scattered locations east of the Cascades crest and in the Columbia River Gorge in Washington; Washington to California, east across most of North America to the Atlantic Coast. [WildflowerSearch map] [BONAP county map]	Occurring west of the Cascades crest along the northeastern coast of the Olympic Peninsula in Washington; native to Alaska, also occurring from the Great Lakes region east to northeastern North America. [WildflowerSearch map] [BONAP county map]
Origin	Introduced from Eurasia	Introduced
Conservation status	Not of concern	Not of concern
Sibling taxa	A. absinthium, A. arbuscula, A. biennis, A. campestris, A. cana, A. douglasiana, A. dracunculus, A. frigida, A. furcata, A. ludoviciana, A. michauxiana, A. norvegica, A. rigida, A. spiciformis, A. stelleriana, A. suksdorfii, A. tilesii, A. tridentata, A. tripartita, A. vulgaris	A. absinthium, A. annua, A. arbuscula, A. biennis, A. campestris, A. cana, A. douglasiana, A. dracunculus, A. frigida, A. furcata, A. ludoviciana, A. michauxiana, A. norvegica, A. rigida, A. spiciformis, A. suksdorfii, A. tilesii, A. tridentata, A. tripartita, A. vulgaris
Web links	Local floras: BC, CA, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, WA Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Artemisia stelleriana

sweet Annie, sweet sagewort, annual wormwood

dusty miller, oldwoman, beach wormwood, Steller's wormwood

Habit

Sweet-scented, glabrous, tap-rooted annual 0.3-3 m. tall.

Leaves

Leaves 2-10 cm. long, twice or thrice pinnatifid, the ultimate segments linear or lanceolate.

Flowers

Inflorescence broad and open, the discoid heads loose, often nodding, borne on short peduncles;

involucre glabrous, imbricate, 1-2 mm. high;

flowers all fertile, the outer pistillate;

pappus none,

Fruits

Achene glabrous.

Artemisia stelleriana

Flowering time

August-October

May-September

Habitat

Roadsides, fields, ditches, wastelots, and other disturbed open places.

Coastal dunes and beaches in developed coastal areas, where escaping from cultivation.

Distribution

Occurring in scattered locations east of the Cascades crest and in the Columbia River Gorge in Washington; Washington to California, east across most of North America to the Atlantic Coast.

[WildflowerSearch map]

[BONAP county map]

Occurring west of the Cascades crest along the northeastern coast of the Olympic Peninsula in Washington; native to Alaska, also occurring from the Great Lakes region east to northeastern North America.

[WildflowerSearch map]

[BONAP county map]

Origin

Introduced from Eurasia

Introduced

Conservation status

Not of concern

Sibling taxa