Compilation
Artemisia discolor

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Name

Identification
Isotype of Artemisia discolor Douglas ex DC. [family ASTERACEAE ] (stored under name); Verified by Not on sheet,
Related name
  • Artemisia michauxiana
  • Artemisia iwayomogi
  • Artemisia discolor
  • Artemisia ludoviciana
  • Artemisia incompta
Common name
  • Lemon sagewort, Flora of North America Vol. 19

Flora

Entry for Artemisia michauxiana Besser [family COMPOSITAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 19,
Names
Artemisia michauxiana Besser [family COMPOSITAE], in W. J. Hooker, Fl. Bor.-Amer., 1: 324. 1833
Artemisia discolor Douglas ex Besser [family COMPOSITAE]
Artemisia vulgaris Linnaeus subsp. michauxiana (Besser) H. St. John [family COMPOSITAE]
Treatment Author(s)
Leila M. Shultz
Information
Perennials, 30–100 cm, strongly aromatic (lemon-scented; rhizomatous). Stems relatively many, erect, green, simple, glabrous. Leaves cauline, green; blades broadly lanceolate to narrowly elliptic, 1.5–11 × 1–1.5 cm, 2-pinnately lobed, (ultimate lobes toothed), faces white-tomentose (abaxial) or glabrous (adaxial), yellow-gland-dotted. Heads (erect to nodding, peduncles 0 or to 10 mm) in paniculiform to spiciform arrays 8–15 × 1–1.5 cm. Involucres campanulate, 3(–4) × 2–5.5 mm. Phyllaries (yellow-green, rarely purplish) broadly ovate, glabrous or sparsely hairy, yellow-gland-dotted. Florets: pistillate 9–12; bisexual 15–35; corollas yellow, 1–1.5 mm, glandular. Cypselae (yellow to light brown) ellipsoid, ca. 0.5 mm, glabrous or glandular. 2n = 18, 36.
Phenology
jun-aug (summer), sep-nov (fall)
Altitude range
1900–3700 m;
Distribution
USA Calif.USA Colo.USA IdahoUSA Mont.USA Nev.USA Oreg.USA UtahUSA Wash.USA Wyo.Canada Alta.Canada B.C.Canada Yukon
Discussion
Members of the Artemisia ludoviciana complex with deeply lobed leaves are sometimes confused with A. michauxiana, and there is evidence that plants hybridize in some locations. Artemisia michauxiana is distinguished by its glabrous, bright green to yellow-green foliage and lemony-sweet fragrance.

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