Flaveria angustifolia (Cav.) Pers.

Flaveria angustifolia (Cav.) Pers. Syn. PI. 2: 489. 1807
Millcria angustifolia Cav. Ic. 3: 12. 1794.
Flaveria iniegrifolia Moc. & Sesse; DC. Prodr. 5: 635, as synonym. 1836. Flaveria radicans Moc. & Sesse; DC. Prodr. 5: 635, as synonym. 1836. Flaveria elata Klatt, Leopoldina 23: 146. 1887.
A dichotomously branched herb; stem 3-10 dm. high, glabrous below, puberulent on the upper part; leaves linear to linear-lanceolate, 3-1 1 cm. long, 2-4 cm. wide, entire or minutely denticulate, glabrous; inflorescence umbellate-corymbiform, nearly naked; heads densely glomerate, 4-9-flowered; involucral bracts usually 3, rarely more, 4 mm. long, the calyculate ones conspicuous, unequal; ray-flower 1 or sometimes wanting; ligule 2 mm. long, 1 mm. wide; disk-flowers 3-5, sometimes 6-8; corollas about 3 mm. long; tube slightly villous, about as long as the funnelform throat ; aehenes nearly 2 mm. long.
Type locality: "Nova Hispania" [Mexico]. Distribution: Oaxaca and Puebla.

Flaveria angustifolia is a Mexican plant species of yellowtops within the family Asteraceae. It has been found only in central Mexico, in Oaxaca, Guerrero, Puebla, and the Distrito Federal.

Flaveria angustifolia is an perennial herb up to 100 cm (39 in) tall. Leaves are long and narrow, up to 12 cm (4.7 in) long. One plant can produce numerous flower heads in a dense spiral array. Each head contains 5-7 yellow disc flowers. some heads contain no ray flowers but other heads in the same cluster may have one yellow ray flower.