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3a. Artemisia campestris Linnaeus subsp. canadensis (Michaux) Scoggan, Fl. Canada. 1: 52. 1978.
Armoise du Canada
Artemisia canadensis Michaux, Fl. Bor.-Amer. 2: 128. 1803
Biennials, 20–40 cm. Stems usually 1. Leaves: basal rosettes not persistent. Heads in arrays 8–10(–12) × 1–2(–3) cm. Involucres globose. 3–4 × 3.5–5(–6) mm.
Flowering early–late summer. Open meadows; 0–1000 m; Greenland; Man., N.B., Nfld. and Labr., Nunavut, Ont., Que., Sask.; Maine.
A more broadly circumscribed interpretation of the subsp. caudata complex would encompass subsp. canadensis.
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