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Plants to c. 70 cm high, rhizomatous, hairy on stems and leaves. Leaves to c. 9 cm long, 1-or 2-pinnatisect; major rachides usually 3–8 mm wide; primary segments 3–7. Capitula few to numerous per stem, generally not congested, radiate, 12–20 mm diam.; peduncle to c. 5 cm long; involucre 3–5 mm long, cobwebby or glabrous; inner bracts with hyaline extension c. 0.2 mm long. Ray florets 10–numerous; ligule 4–8 mm long, white. Disc florets: corolla 1.5–2 mm long; tube ± as broad as and as long as limb; limb yellow. Achene of disc florets obovoid, 1–1.5 mm long, 5–8-ribbed, pale brown.
A short lived perennial herb. It has a strong smell. It grows 45-60 cm high and spreads 30-45 cm wide. The leaves are yellow-green and oval. The leaves can be 8 cm long and divided into lobes along the stalk. The flowers are daisy-like and in clusters. The flowers are 2.5 cm across.
