Greek chrysos — gold, anthemon — flower, as the capitula of many species are bright yellow.
Annual herbs. Stems erect or ascending, branched. Leaves along stems, alternate, margins toothed to divided, base often stem-clasping. Capitula radiate, terminal, solitary or in corymbs, with stalks. Involucral bracts in 2 or 3 rows, overlapping, unequal. Receptacle pitted, convex. Ray florets female, ligulate, yellow, sometimes white-tipped. Disk florets bisexual, tubular, yellow. Achenes cylindrical to 3-angled, often winged. Pappus absent.
One species has become a minor weed in urban areas.
Florets frequently yellow; achenes mostly 3-angled, sometimes winged, without a pappus.
2 species from Europe, Asia and N Africa.
Source: (2002). Asteraceae. In: . Horticultural Flora of South-eastern Australia. Volume 4. Flowering plants. Dicotyledons. Part 3. The identification of garden and cultivated plants. University of New South Wales Press.