Artemisia absinthium |
Artemisia porteri |
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absinthe, absinthium, wormwood |
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Habit | Herbs perennial, 4–12 dm; with woody caudices, fibrous-rooted. | |
Stems | canescent, often glabrate proximally. |
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Leaves | numerous; cauline, 3–8 cm, 1–3-pinnate; lobes 2–4 mm wide, toothed; surfaces finely canescent; petioles short or long. |
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Inflorescences | panicle-like; narrow or spreading. |
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Involucres | broadly ovoid or hemispheric, 2–3 mm. |
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Receptacles | villous. |
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Florets | 50+; outer pistillate; inner bisexual. |
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Phyllaries | in 3–4 ± equal series, lanceolate; tips acute or obtuse; surfaces canescent. |
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Fruits | 0.4–0.6 mm, glabrous. |
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Heads | disciform, arched or nodding; short-peduncled. |
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2n | =18. |
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Artemisia absinthium |
Artemisia porteri |
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Distribution | ||
Discussion | Coniferous woods, disturbed areas. Flowering Jun–Oct. 0–1200 m. BW, WV. ID, WA; scattered in northern North America; Europe. Exotic. |
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Source | Flora of Oregon, volume 2, page 189 Kenton Chambers |
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Sibling taxa | ||
Web links |