Artemisia globularia

Chamisso ex Besser

Nouv. Mém. Soc. Imp. Naturalistes Moscou3: 64. 1833

Synonyms: Ajania globularia (Besser) Poljakov Artemisia norvegica subsp. globularia (Besser) H. M. Hall & Clements
Treatment appears in FNA Volume 19. Treatment on page 525. Mentioned on page 521.
Perennials, (3–)5–16(–30) cm (cespitose), faintly aromatic (not rhizomatous, taproots stout, caudices simple or branched, proximal branches clothed with persistent leaf bases). Stems 1–5, erect, whitish gray, densely tomentose. Leaves mostly basal (cauline 1–4), greenish to whitish green; blades (basal) 1–4.5 × 0.6–1.5 cm, 1–2-ternately to palmately lobed (flowering-stem blades 3-lobed), faces sparsely hairy. Heads (2–20, peduncles 0 or to 25 mm) in subcapitate to capitate arrays 2–3 × 2–3 cm. Involucres campanulate or hemispheric, 3.5–6 × 6–11 mm. Phyllaries lanceolate (margins brown), pilose. Florets: pistillate 9–10; bisexual 20–30; corollas yellow or reddish black, 2–3 mm, sometimes glandular. Cypselae oblong, 1.5–2.5 mm, (apices flattened) glabrous.

Distribution

V19-900-distribution-map.gif

nw North America, Asia.

Discussion

Subspecies 2 (2 in the flora).

References

None.

Key

1 Corollas reddish black; cypselae ca. 2.5 mm, margins with relatively narrow ribs Artemisia globularia subsp. globularia
1 Corollas yellow; cypselae 1.5–2 mm, margins with relatively broad ribs Artemisia globularia subsp. lutea