Artemisia laciniata

Willdenow

Sp. Pl. 3: 1843. 1803

Treatment appears in FNA Volume 19. Treatment on page 526. Mentioned on page 521.
Revision as of 20:21, 16 December 2019 by Volume Importer (talk)
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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