Artemisia douglasiana

Besser in W. J. Hooker

in W. J. Hooker, Fl. Bor.-Amer. 1: 323. 1833

Common names: Northwest mugwort Douglas sagewort
Synonyms: Artemisia campestris var. douglasiana (Besser) B. Boivin Artemisia caudata var. douglasiana (Besser) B. Boivin Artemisia commutata var. douglasiana (Besser) Besser Artemisia desertorum var. douglasiana Besser Artemisia heterophylla Nuttall Artemisia ludoviciana var. douglasiana (Besser) D. C. Eaton Artemisia vulgaris var. douglasiana (Besser) H. St. John
Treatment appears in FNA Volume 19. Treatment on page 524. Mentioned on page 522, 533.
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.

Phenology: Flowering mid spring–late fall.
Habitat: Meadows, shaded sites, along drainages
Elevation: 100–2200 m

Distribution

V19-897-distribution-map.gif

Calif., Nev., Oreg., Wash.

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.

Selected References

None.

Lower Taxa

None.

Facts about "Artemisia douglasiana"
AuthorLeila M. Shultz +
AuthorityBesser in W. J. Hooker +
Common nameNorthwest mugwort + and Douglas sagewort +
DistributionCalif. +, Nev. +, Oreg. + and Wash. +
Elevation100–2200 m +
HabitatMeadows, shaded sites, along drainages +
Illustration copyrightFlora of North America Association +
IllustratorLinda Ann Vorobik +
PhenologyFlowering mid spring–late fall. +
Publication titlein W. J. Hooker, Fl. Bor.-Amer. +
Publication year1833 +
ReferenceNone +
Source xmlhttps://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V19-20-21/V19 897.xml +
SynonymsArtemisia campestris var. douglasiana +, Artemisia caudata var. douglasiana +, Artemisia commutata var. douglasiana +, Artemisia desertorum var. douglasiana +, Artemisia heterophylla +, Artemisia ludoviciana var. douglasiana + and Artemisia vulgaris var. douglasiana +
Taxon familyAsteraceae +
Taxon nameArtemisia douglasiana +
Taxon parentArtemisia subg. Artemisia +
Taxon rankspecies +
VolumeVolume 19 +