Compilation
Artemisia tilesii

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Name

Identification
Artemisia tilesii Ledeb. [family COMPOSITAE ] (stored under name); Artemisia pringlei Greenm. [family COMPOSITAE ] Artemisia ludoviciana Nutt. [family COMPOSITAE ]
Related name
  • Artemisia gormanii
  • Artemisia hultenii
  • Artemisia ludoviciana
  • Artemisia tilesii
  • Artemisia pringlei

Flora

Entry for Artemisia tilesii Ledebour [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 tilesii Ledebour [family COMPOSITAE], Mém. Acad. Imp. Sci. St. Pétersbourg Hist. Acad., 5: 568. 1814
Artemisia hookeriana Besser [family COMPOSITAE]
Artemisia hultenii M. M. Maximova [family COMPOSITAE]
Artemisia tilesii var. aleutica (Hultén) S. L. Welsh [family COMPOSITAE]
Artemisia tilesii var. elatior Torrey & A. Gray [family COMPOSITAE]
Artemisia tilesii subsp. gormanii (Rydberg) Hultén [family COMPOSITAE]
Artemisia tilesii subsp. hultenii (M. M. Maximova) V. G. Sergienko [family COMPOSITAE]
Artemisia tilesii var. unalaschcensis Besser [family COMPOSITAE]
Artemisia unalaskensis Rydberg var. aleutica Hultén [family COMPOSITAE]
Artemisia vulgaris Linnaeus subsp. tilesii (Ledebour) H. M. Hall & Clements [family COMPOSITAE]
Treatment Author(s)
Leila M. Shultz
Information
Perennials, 20–60(–80) cm, mildly aromatic (rhizomes coarse). Stems 1–3, erect, white, tomentose (on distal branches, hairs appressed) or glabrate. Leaves basal and cauline, bicolor (white and green); blades (basal) linear to broadly lanceolate, 3–7(–10) × 2–5(–6) cm, coarsely pinnately lobed (cauline becoming linear distally), faces tomentose (abaxial) or glabrous (adaxial). Heads in compact to broadly branched, paniculiform arrays 1–20 × 2–6 cm. Involucres broadly campanulate, 4–5 × 3.5–4 mm. Phyllaries (violet-brown) oval (outer) to elliptic or lanceolate, sparsely tomentose. Florets: pistillate 9; bisexual 25–60; corollas yellow, 1.5–3 mm, glabrous (style branches included, erect, linear, relatively short, short-ciliate). Cypselae oblong-linear (angular), 1.2–1.5 mm, glabrous. 2n = 18, 36.
Phenology
jun-aug (summer), sep-nov (fall)
Altitude range
0–2000 m;
Distribution
Asia (Russia).USA AlaskaUSA IdahoUSA Mont.USA Oreg.USA Wash.Canada Alta.Canada B.C.Canada Man.Canada N.W.T.Canada NunavutCanada Ont.Canada Que.Canada Sask.Canada Yukon
Discussion
Artemisia tilesii has a bewildering array of variation in leaf and inflorescence morphology that has been separated into four infraspecific taxa recognized in some floras. I am unable to separate these taxa consistently and am including them within a broad circumscription of the species.

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