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Artemisia douglasiana Besser  
Family: Asteraceae
Douglas' Wormwood
[Artemisia caudata var. douglasiana (Hook.) B. Boivin, moreArtemisia vulgaris subsp. heterophylla H.M.Hall & Clem., Artemisia vulgaris var. douglasiana]
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  • FNA
  • Resources
Leila M. Shultz in Flora of North America (vol. 19, 20 and 21)
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). Heads (usually nodding) in (leafy) paniculiform arrays 10-30 × 3-9 cm (branches widely spreading, ascending, stout). Involucres narrowly turbinate to campanulate, 2-3 × 2-4 mm. Phyllaries (green to gray) ovate, tomentose to pubescent. Florets: pistillate 6-10; bisexual 6-25; corollas pale yellow, 1-1.5 mm, glabrous, sometimes glandular. Cypselae ellipsoid, 0.5-1 mm, glabrous. 2n = 54.

Flowering mid spring-late fall. Meadows, shaded sites, along drainages; 100-2200 m; Calif., Nev., Oreg., Wash.

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.

Artemisia douglasiana
Open Interactive Map
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The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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