Artemisia longifolia

Nuttall

Gen. N. Amer. Pl. 2: 142. 1818

Common names: Long-leaved sage
Synonyms: Artemisia ludoviciana var. integrifolia A. Nelson Artemisia natronensis A. Nelson Artemisia vulgaris subsp. longifolia (Nuttall) H. M. Hall & Clements Artemisia vulgaris var. longifolia (Nuttall) M. Peck
Treatment appears in FNA Volume 19. Treatment on page 527. Mentioned on page 521, 532.
Perennials, 20–80 cm (not cespitose), pleasantly aromatic (fibrous-rooted, rootstocks relatively short, horizontal, layered stems sometimes sprouting). Stems 3–20+, erect, gray-green, usually simple, sometimes branched (bases woody), densely tomentose. Leaves cauline, bicolor (white and green); blades linear to lanceolate, 3–12 × 1 cm, margins usually entire, sometimes toothed or lobed, faces densely tomentose (abaxial) or glabrate (adaxial). Heads (peduncles 0 or to 2 mm) in mostly racemiform arrays 8–13 × 1–2 cm. Involucres campanulate, 4–5 × 4–5 mm. Phyllaries ovate-lanceolate (margins hyaline), densely to sparsely tomentose. Florets: pistillate 3–10; bisexual 8–26; corollas pale yellow, 1–2 mm, sparsely glandular. Cypselae ellipsoid, 0.5–0.8 mm, glabrous. 2n = 36.

Phenology: Flowering mid summer–early fall.
Habitat: Alkaline flats, grasslands, barren areas, high plains
Elevation: 500–1800 m

Distribution

V19-907-distribution-map.gif

Alta., B.C., Man., Sask., Idaho, Minn., Mont., Nebr., N.Dak., S.Dak., Wyo.

Discussion

Artemisia longifolia appears to be more salt-tolerant than most species of the genus. It is closely related to A. ludoviciana.

References

None.

Lower Taxa

No lower taxa listed.