Artemisia serrata Nutt.

Artemisia serrata is closely related to A. ludoviciana and A. longifolia; it is distinguished by its prominent, serrated leaf margins. It is apparently native to the upper Mississippi Valley and naturalized in New York, presumably following introduction as a garden plant. Reports from Kansas and Missouri may be based on collections of A. ludoviciana.

Perennials, 50–100(–300) cm (not cespitose), pleasantly aromatic (fibrous-rooted, rhizomes horizontal, relatively short). Stems 2–5, erect, brown, mostly simple (bases woody), sparsely tomentose. Leaves cauline, bicolor (white and green); blades lanceolate, 7–15 × 1–2.5 cm, serrate (teeth ca. 2 mm), faces densely tomentose (abaxial) or glabrate (adaxial). Heads (peduncles 0 or to 2 mm) in racemiform arrays 10–15 × 5–15 cm. Involucres campanulate, 2.5–3 × 2–2.5 mm. Phyllaries lanceolate (margins hyaline), densely tomentose. Florets: pistillate 3–5; bisexual 9–10; corollas pale yellow, 1.5–2 mm, sparsely glandular. Cypselae ellipsoid, ca. 1 mm, glabrous. 2n = 36.

Artemisia vulgaris Linnaeus subsp. serrata (Nuttall) H. M. Hall & Clements

Artemisia serrata Nutt. Gen. 2 : 142. 1818
Artemisia ludoviciana serrata T. & G. Fl. N. Am. 2: 420. 1843.
A tall perennial, with a rootstock; stem 1-3 m. high, slightly floccose when young, but soon glabrous, striate; leaves numerous, lanceolate to linear-lanceolate, acuminate, closely and sharply serrate, green and glabrous above, white-tomentose beneath, 7-15 cm. long, 6-25 mm. wide; heads very numerous in a leafy panicle, mostly erect; involucre campanulate, about 3 mm. high and 2 mm. broad, slightly floccose; bracts about 10, in 3 series, the outer ovate, acute, about half as long as the innermost; inner bracts elliptic, obtuse; ray-flowers 6-8; corollas about 1 mm. long; disk-flowers 10-12; corollas nearly 2 cm. long; achenes 1 mm. long.
Tyte locality: Near the Prairie du Chien, on the banks of the Mississippi. Distribution: Illinois to Kansas, and North Dakota; introduced in northern New York.

Artemisia serrata is a North American species in the sunflower family, with the common name serrate-leaved sage or saw-tooth wormwood. It is native to the north-central part of the United States (Iowa, Illinois, Michigan, Wisconsin, Minnesota, North Dakota, with isolated populations in New York State).

Artemisia serrata, tên thông thường ngải răng cưa, là một loài thực vật có hoa trong họ Cúc. Loài này được Nutt. mô tả khoa học đầu tiên năm 1818.