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FNA | Family List | FNA Vol. 19, 20 and 21 | Asteraceae | Artemisia

24. Artemisia abrotanum Linnaeus, Sp. Pl. 2: 845. 1753.

Southernwood, lad’s love, old man, armoise aurone

Perennials or subshrubs, 50–130(–170) cm (not cespitose), aromatic (roots thick, woody). Stems relatively numerous, erect, brown, branched, (woody, brittle), glabrous or sparsely hairy. Leaves cauline, dark green; blades broadly ovate, (2–)3–6 × 0.02–0.15 cm, 2–3-pinnatifid (lobes linear or filiform), faces sparsely hairy (abaxial) or glabrous (adaxial). Heads (nodding at maturity) in open, widely branched arrays 10–30 × 2–10 cm. Involucres ovoid, (1–)2–3.5 × (1–)2–2.5 mm. Phyllaries oblong-elliptic, sparsely hairy. Florets: pistillate 4–8(–15); bisexual 14–16(–20); corollas yellow, 0.5–1 mm, glandular. Cypselae (light brown) ellipsoid (2–5-angled, flattened, furrowed), 0.5–1 mm, glabrous. 2n = 18.

Flowering late summer–fall. Waste places; 0–3000 m; introduced; Alta., Man., N.B., Ont., Que., Sask.; Colo., Conn., Del., D.C., Ill., Iowa, Kans., Maine, Md., Mass., Mich., Minn., Nebr., N.H., N.J., N.Y., N.C., Oreg., Pa., S.C., Utah, Vt., Wis., Wyo.; Eurasia; Africa.

Artemisia abrotanum has been widely cultivated in gardens for old-time uses such as a fly and parasite repellent. It has had a renewed popularity in xeriscape gardening; it is drought tolerant and can fill difficult garden spaces (e.g., dry rocky slopes). Reports of naturalization may be exaggerated; it is not known to become weedy in any of its known locations in North America.


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