6. Anthemis arvensis Linnaeus, Sp. Pl. 894. 1753; Boiss., Fl. Or. 3: 301. 1875; Fed. in Schischk. & Bobrov, Fl. USSR 26: 32. 2000 (Engl. transl.); Täckh., Stud. Fl. Egypt ed. 2. 574. 1974; Yavin & Grierson in P.H.Davis, Fl. Turk. 5: 198. 1975; R. Fern. in Tutin et al., Fl. Europ. 4: 153. 1976; Ghafoor & Al-Turki in Chaudhary, Fl. Kingd. Saudi Arab. 2 (3): 171. Pl. 51, G-K. 2000.
Annual or biennial, sparingly to densely hairy, decumbent or erect, up to 50 (-80) cm tall herb. Leaves ovate-oblong, 1.5 – 5 cm long, 0.5 – 1.5 cm wide, 1-3-pinnatisect into ± hairy, linear-oblong or linear-lanceolate to elliptic, acute-mucronate ultimate segments. Peduncles slender, not or slightly to distinctly upwardly thickened in fruit. Capitula radiate, 1 – 4 cm across. Phyllaries oblong or oblong-obovate, outer acute, inner subacute to obtuse, hyaline to pale-brown scarious margined, hairy. Receptacle convex to elongated and conical especially in fruit, 2 – 10 x 2 – 3 mm, ± contracted, acute or attenuate to the tip. Phyllaries mostly lanceolate to oblanceolate, nearly as long as disc-florets, ± stiff acuminate apically, subpersistent. Ray-florets 12 – 15, fertile, corolla tube glabrous, ligules oblong-elliptic, 3.5 – 17 x 2.5 – 5 mm, white, deciduous. Disc-florets yellow, occasionally purplish-tinged, 2.5 – 3.5 mm long, basally not or very slightly inflated, glabrous. Cypselas obconical, 2 – 2.5 mm long, squarish in cross section, smooth, usually 10-ribbed, ribs thickened, obtuse, apex with a thickened undulating rim or a short lacerate hyaline auricle.
Fl. Per.: May-August.
Type: Described from Sweden, Herb. Linn. 1016.15 (LINN !).
Probably an introduced species, grown as an ornamental in Pakistan; Distribution: Throughout Europe (except extreme North), Turkey, Soviet Union (except Siberia), Iran; Introduced in N & S America, Australia, and New Zealand.