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Volume IV (1988) - Flora of New Zealand Naturalised Pteridophytes, Gymnosperms, Dicotyledons
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Artemisia L.

ARTEMISIA L.

Annual, biennial or perennial herbs or shrubs, taprooted or rhizomatous. Lvs usually pinnately divided, alternate. Capitula in terminal, pedunculate panicles, racemes or corymbs; involucral bracts in few rows, with membranous margins. Receptacle flat to hemispheric; scales 0, but pilose hairs sometimes present. Outer florets ♀ or ⚥, tubular, brown, red, or yellow; inner florets ⚥ or ♂, tubular. Achenes all similar, obovoid, subterete or flattened, smooth, faintly striate, or 2-ribbed; pappus 0 or a small scarious ring.

Key

1
Lvs usually glabrous on upper surface, sometimes sparsely hairy; receptacle glabrous
3. *verlotiorum
Lvs densely sericeous on upper surface; receptacle pilose
2
2
Herbaceous perennial, dying back to woody base each year; ultimate lf segments up to 10-(18) mm long
1. *absinthium
Shrub, not dying back each year; at least some ultimate lf segments 20-70 mm long
2. *arborescens

c. 400 spp., Europe, Mediterranean, Asia, South Africa, N. America. Naturalised spp. 3.

Several Artemisia spp. are cultivated for their ornamental silver foliage although the capitula are inconspicuous and wind-pollinated.

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