Crown daisy, garland chrysanthemum

Chrysanthemum coronarium Linnaeus, Sp. Pl. 2: 890. 1753

Leaf blades oblong to obovate, mostly 30–55+ × 15–30+ mm, mostly 2–3-pinnately lobed, ultimate margins dentate. Ray corollas pale yellow, sometimes white-tipped, laminae oblong to linear, 15–25 mm. Ray cypselae triquetrous, 2.5–3 mm, angles ± winged, faces obscurely nerved or ribbed; disc cypselae ± prismatic, ± compressed, 2.5–3 mm, obscurely ribbed, sometimes with adaxial (rarely the abaxial) rib ± winged. 2n = 18.

Flowering Apr–Jul. Disturbed sites; 0–200 m; introduced; Ariz., Calif., Fla.; Eurasia; n Africa.