Artemisia laciniata

Willdenow

Sp. Pl. 3: 1843. 1803

Treatment appears in FNA Volume 19. Treatment on page 526. Mentioned on page 521.
Perennials, 5–15 cm (not cespitose), sometimes mildly aromatic. Stems 1–3, erect, reddish brown, simple, strigillose to spreading-hairy, or glabrous. Leaves basal (in rosettes, petioles to 12 cm) and cauline, greenish; blades (basal) 2–3-pinnate, relatively deeply lobed (cauline sessile, 1–2-pinnately lobed to entire), faces sparsely hairy to pilose. Heads (10–70, spreading to nodding, peduncles 0 or to 10 mm) in spiciform arrays 2–5 × 0.5–1 or 8–18 × 1–4 cm. Involucres globose, 3–5 × 4–8 mm. Phyllaries (greenish or yellowish) elliptic (margins hyaline, brownish), glabrous or sparsely hairy. Florets: pistillate 6–8; bisexual 20–50; corollas yellowish or yellow to reddish-tinged, 1–2 mm, hairy (hairs tangled). Cypselae oblong, 0.5–1 mm, glabrous.

Distribution

V19-904-distribution-map.gif

nw, w North America, Eurasia.

Discussion

Subspecies 2 (2 in the flora).

Selected References

None.

Key

1 Stems hairy; leaves mostly cauline, blades 5–20 × 1–2 cm, sparsely hairy; arrays of heads 8–18 × 1–4 cm; corollas yellowish, 1–1.5 mm Artemisia laciniata subsp. laciniata
1 Stems glabrous; leaves mostly basal, blades of proximalmost 4–8 × 0.5–1 cm, of cauline 1.5–0.8 × 0.2 cm, sericeous; arrays of heads 2–5 × 0.5–1 cm; corollas yellow or reddish-tinged, 1.5–2 mm Artemisia laciniata subsp. parryi