Difference between revisions of "Artemisia subg. Absinthium"
Syn. Gen. Compos., 264. 1832.
Basionym: Undefined subg. Absinthium Miller Gard. Dict. Abr. ed. 4, vol. 1. 1754
Synonyms: Artemisia subsect. Absinthium (Miller) Darijma
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|name=Undefined subg. Absinthium | |name=Undefined subg. Absinthium | ||
|authority=Miller | |authority=Miller | ||
| + | |publication_title=Gard. Dict. Abr. ed. | ||
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|tribe=Asteraceae tribe Anthemideae | |tribe=Asteraceae tribe Anthemideae | ||
|genus=Artemisia | |genus=Artemisia | ||
Revision as of 18:39, 24 September 2019
Perennials; fibrous rooted, caudices woody, rhizomes absent. Stems not wandlike. Leaves deciduous or persistent, basal and/or cauline (petiolate or sessile, not in fascicles). Heads disciform. Receptacles epaleate, villous (hairs relatively long). Florets: peripheral 6–27 pistillate and fertile; central 15–100 bisexual and fertile; corollas (pale yellow) funnelform.
Distribution
Temperate regions, North America, South America, Eurasia.
Discussion
Species ca. 40 (5 in the flora).
Selected References
Lower Taxa
Key
| 1 | Plants 10–40 or 40–60(–100) cm; leaves pinnately lobed (basal 2–3-pinnatifid) or 1–2-ternately lobed | > 2 |
| 1 | Plants 5–50 cm; leaves entire or 1–3-pinnately lobed | > 3 |
| 2 | Leaves pinnately lobed (basal 2–3-pinnatifid, lobes obovate) | Artemisia absinthium |
| 2 | Leaves 1–2-ternately lobed (lobes filiform, to 0.5 mm wide) | Artemisia frigida |
| 3 | Involucres 3–5 mm diam | Artemisia frigida |
| 3 | Involucres 4–8 mm diam | > 4 |
| 4 | Leaves bright green, faces glabrous or sparsely hairy; phyllary margins light green. | Artemisia rupestris |
| 4 | Leaves gray-green, faces canescent to villous; phyllary margins black to brown | > 5 |
| 5 | Heads borne singly or (2–5) in paniculiform to racemiform arrays; corolla lobes glabrous | Artemisia pattersonii |
| 5 | Heads (5–22) in spiciform arrays; corolla lobes hairy | Artemisia scopulorum |